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Kenzie Turner

I joined the USGS in 2002 as a GIS technician and converted to a research geologist in 2011.  I am with the Geosciences and Environmental Change Science Center and am a project member of the Cenozoic evolution of the southern Rocky Mountains project and Geologic studies at the Buffalo National River, northern Arkansas project.

 

 

Science and Products

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Rippling marine deposits with hammer shown for scale

Sedimentology and Structure Working Group

The Sedimentology and Structure Working Group supports the Geologic Framework of the Intermountain West Project by conducting research on sedimentary rocks and structural deformation to determine the processes controlling tectonic uplift, accommodation, and sedimentation, ultimately to develop stratigraphic and structural frameworks that expand the utility of geologic map relationships for process...
By
Geosciences and Environmental Change Science Center
link

Sedimentology and Structure Working Group

The Sedimentology and Structure Working Group supports the Geologic Framework of the Intermountain West Project by conducting research on sedimentary rocks and structural deformation to determine the processes controlling tectonic uplift, accommodation, and sedimentation, ultimately to develop stratigraphic and structural frameworks that expand the utility of geologic map relationships for process...
Learn More
link
Close up view of metagreywacke

Igneous and Metamorphic Working Group

The Igneous and Metamorphic Working Group supports the Geologic Framework of the Intermountain West Project by conducting research focused on understanding the magmatic and metamorphic processes that shaped the Intermountain West and their implications for mineral resource exploration and tectonic history.
By
Geosciences and Environmental Change Science Center
link

Igneous and Metamorphic Working Group

The Igneous and Metamorphic Working Group supports the Geologic Framework of the Intermountain West Project by conducting research focused on understanding the magmatic and metamorphic processes that shaped the Intermountain West and their implications for mineral resource exploration and tectonic history.
Learn More
link
Measuring paleoflow directions in the overturned beds of the Pennsylvanian Atoka Formation at the Paris Spillway, Paris, AR

Ozark Dome-Arkoma Basin-Ouachita Transect

The Ozark Dome-Arkoma Basin-Ouachita Transect (ODABOuT) project examines the three-dimensional geology of a transect of the southern orogenic margin of North America in its best surface exposure in western Arkansas. The Ozark Dome and Arkoma Basin represent a foreland uplift and foreland basin that formed as a result of the impinging Ouachita orogenic belt. Understanding the geometry and evolution...
By
Geosciences and Environmental Change Science Center
link

Ozark Dome-Arkoma Basin-Ouachita Transect

The Ozark Dome-Arkoma Basin-Ouachita Transect (ODABOuT) project examines the three-dimensional geology of a transect of the southern orogenic margin of North America in its best surface exposure in western Arkansas. The Ozark Dome and Arkoma Basin represent a foreland uplift and foreland basin that formed as a result of the impinging Ouachita orogenic belt. Understanding the geometry and evolution...
Learn More
link
Mt. Ouray, Colorado with aspen colors

Geologic Framework of the Intermountain West

The Geologic Framework of the Intermountain West (IMW) Project is creating a seamless, integrated, geologic map database that spans the Intermountain West region. The database will serve enhanced geologic map data to support geoscience research, environmental and resource assessments, and the communication of geologic information for all U.S. Geological Survey stakeholders. This innovative...
By
Geosciences and Environmental Change Science Center
link

Geologic Framework of the Intermountain West

The Geologic Framework of the Intermountain West (IMW) Project is creating a seamless, integrated, geologic map database that spans the Intermountain West region. The database will serve enhanced geologic map data to support geoscience research, environmental and resource assessments, and the communication of geologic information for all U.S. Geological Survey stakeholders. This innovative...
Learn More
link
Border fence on U.S.-Mexico border

U.S.-Mexico Border Geologic Framework

The primary objective of the U.S.-Mexico border project is to provide framework geology through geologic mapping activities to support border-wide science investigations including assessing and evaluating groundwater, energy and mineral, and ecological resources, and identifying and investigating natural hazards, including landslide, earthquake, wildfire, and flood hazards.
By
Geosciences and Environmental Change Science Center
link

U.S.-Mexico Border Geologic Framework

The primary objective of the U.S.-Mexico border project is to provide framework geology through geologic mapping activities to support border-wide science investigations including assessing and evaluating groundwater, energy and mineral, and ecological resources, and identifying and investigating natural hazards, including landslide, earthquake, wildfire, and flood hazards.
Learn More

Bedrock geologic map database for the Blanca Peak, Walsenburg, Trinidad, and Alamosa 30' x 60' quadrangles, Colorado

This data release presents geologic map data for the bedrock geology of the Blanca Peak, Walsenburg, Trinidad, and Alamosa 30' x 60' quadrangles, Colorado. Geologic mapping incorporates new interpretive contributions and compilation from published geologic map data sources primarily ranging from 1:24,000 to 1:50,000 scale. Much of the geology incorporated from published geologic maps is...
By
Geosciences and Environmental Change Science Center

Bedrock geologic map database for the Durango 1-degree x 2-degree quadrangle, southern Colorado: Contributions to the National Geologic Map (ver. 2.0, June 2024)

This data release presents geologic map data for the bedrock geology of the Durango 1-degree by 2-degree quadrangle. Geologic mapping incorporates new interpretive contributions and compilation from published geologic map data sources primarily ranging from 1:24,000 to 1:50,000 scale. Much of the geology incorporated from published geologic maps is adjusted based on digital elevation...
By
Geosciences and Environmental Change Science Center

Surficial geologic map database of the Durango 1-degree by 2-degree quadrangle, southern Colorado: Contributions to the National Geologic Map

This data release presents geologic map data for the surficial geology of the Durango 1-degree by 2-degree quadrangle and adjacent areas along the northern boundary of the quadrangle. The map area lies within two physiographic provinces of Fenneman (1928): the Southern Rocky Mountains province, and the Colorado Plateau province, Navajo section. Geologic mapping is mostly compiled from...
By
Geosciences and Environmental Change Science Center

Data release for geochronology and geochemistry of volcanic rocks in the Southern Rocky Mountains and Taos Plateau volcanic fields and other Oligocene to Pleistocene volcanic rocks within the southern San Luis Basin and San Juan Mountains, southern Colora

The dataset includes whole-rock geochemistry and 40Ar-39Ar geochronology for Pleistocene to Oligocene volcanic and intrusive rocks. These data support figures and tables in days 2 and 3 of the Field-trip guide to continental arc to rift volcanism of the southern Rocky Mountains-Southern Rocky Mountain, Taos Plateau, and Jemez Mountains volcanic fields of southern Colorado and northern...
By
National Cooperative Geologic Mapping Program, Geosciences and Environmental Change Science Center

Database for the geologic map of the upper Santa Cruz River basin, southern Arizona

This digital publication contains the database, base maps, and style files used to build the geologic map of the upper Santa Cruz River basin in southern Arizona published in U.S. Geological Survey Scientific Investigations Map 3490 (Page and others, 2023). Shapefiles are also included for the user’s convenience. In the database, there are polygon features outlining the map units and...
By
Geosciences and Environmental Change Science Center

Geologic setting and geomorphic history of the La Botica area, south-central Colorado

La Botica is positioned on a topographic bench sharply inset into the gentle eastern slope of the high San Juan Mountains and perched ~70-80 meters above La Jara Creek (fig. 1), a tributary to the Rio Grande. Quaternary surface processes have modified the Tertiary bedrock deposits that underlie La Botica to shape the physical environment. Bedrock deposits consist of Oligocene to Pliocene...
By
Geosciences and Environmental Change Science Center

Data release of geospatial map database, argon geochronology and geochemistry data for: Geologic map of the San Antonio Mountain area, northern New Mexico and southern Colorado

This dataset accompanies publication "Geologic map of the San Antonio Mountain area, northern New Mexico and southern Colorado". Data presented here include the digital geologic database, 40Ar/39Ar geochronology and major and trace element chemistry from lava flows and an ignimbrite. The geologic database includes spatial feature classes and non-spatial tables that collectively contain...
By
National Cooperative Geologic Mapping Program, Geosciences and Environmental Change Science Center

Data release of geospatial map database and structural measurements for: Geologic map of the Osage SW 7.5' quadrangle, Newton, Madison, and Carroll counties, Arkansas

This dataset accompanies publication "Geologic map of the Osage SW 7.5' quadrangle, Newton, Madison, and Carroll counties, Arkansas". Data presented here include the digital geologic database and structural measurements including joints, deformation bands, and small faults collected during field investigation. These data support the following publication: Turner, K.J., and Hudson, M.R...
By
National Cooperative Geologic Mapping Program, Geosciences and Environmental Change Science Center

Geologic map and hydrogeologic investigations of the upper Santa Cruz River basin, southern Arizona

This report includes an updated geologic map and cross sections of the upper Santa Cruz River basin, southern Arizona. The map and cross sections describe the geometry, thickness, and structure of the Miocene to Holocene units which form the main aquifers in the basin. The report also includes results of new hydrogeologic studies including (1) mapping and defining depth to bedrock based...
By
Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center

Geologic map of the San Antonio Mountain area, northern New Mexico and southern Colorado

The geologic map of the San Antonio Mountain area in northern New Mexico and southern Colorado is located along the west-central part of the San Luis Valley. The San Luis Valley is the geomorphic expression of the San Luis Basin, an extensional basin associated with the northern Rio Grande rift. Deposits within the map area record volcanic, sedimentary, and tectonic processes over the...
By
National Cooperative Geologic Mapping Program, Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center

Geologic map of the Osage SW 7.5ʹ quadrangle, Newton, Madison, and Carroll Counties, Arkansas

This map summarizes the geology of the U.S. Geological Survey Osage SW 7.5-minute quadrangle in the Ozark Plateaus region of northern Arkansas. Physiographically, the Osage SW quadrangle is located within a transitional area between the Boston Mountains to the south, and the Springfield Plateau to the north. Geologically, the area is on the southern flank of the Ozark dome; an uplift...
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Geosciences and Environmental Change Science Center

Geologic map of the Murray Quadrangle, Newton County, Arkansas

This map summarizes the geology of the Murray quadrangle in the Ozark Plateaus region of northern Arkansas. Geologically, the area is on the southern flank of the Ozark dome, an uplift that has the oldest rocks exposed at its center, in Missouri. Physiographically, the Murray quadrangle is within the Boston Mountains, a high plateau region underlain by Pennsylvanian sandstones and shales...
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Groundwater and Streamflow Information Program, Geosciences and Environmental Change Science Center

Geologic map of the west-central Buffalo National River region, northern Arkansas

This map summarizes the geology of the west-central Buffalo National River region in the Ozark Plateaus region of northern Arkansas. Geologically, the region lies on the southern flank of the Ozark dome, an uplift that exposes oldest rocks at its center in Missouri. Physiographically, the map area spans the Springfield Plateau, a topographic surface generally held up by Mississippian...
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Groundwater and Streamflow Information Program, Geosciences and Environmental Change Science Center

Geologic map of the Ute Mountain 7.5' quadrangle, Taos County, New Mexico, and Conejos and Costilla Counties, Colorado

The Ute Mountain 7.5' quadrangle is located in the south-central part of the San Luis Basin of northern New Mexico, in the Rio Grande del Norte National Monument, and contains deposits that record volcanic, tectonic, and associated alluvial and colluvial processes over the past four million years. Ute Mountain has the distinction of being one of the largest intermediate composition...
By
Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center

Geologic map of the Sunshine 7.5' quadrangle, Taos County, New Mexico

The Sunshine 7.5' quadrangle is located in the south-central part of the San Luis Basin of northern New Mexico, in the Rio Grande del Norte National Monument, and contains deposits that record volcanic, tectonic, and associated alluvial and colluvial processes over the past four million years. Sunshine Valley, named for the small locale of Sunshine, is incised by a series of northeast...
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Geosciences and Environmental Change Science Center

Geologic map of Big Bend National Park, Texas

The purpose of this map is to provide the National Park Service and the public with an updated digital geologic map of Big Bend National Park (BBNP). The geologic map report of Maxwell and others (1967) provides a fully comprehensive account of the important volcanic, structural, geomorphological, and paleontological features that define BBNP. However, the map is on a geographically...
By
Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center

Geologic map of the Maumee quadrangle, Searcy and Marion Counties, Arkansas

This map summarizes the geology of the Maumee 7.5-minute quadrangle in northern Arkansas. The map area is in the Ozark plateaus region on the southern flank of the Ozark dome. The Springfield Plateau, composed of Mississippian cherty limestone, overlies the Salem Plateau, composed of Ordovician carbonate and clastic rocks, with areas of Silurian rocks in between. Erosion related to the...
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Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center

Geologic map of the St. Joe quadrangle, Searcy and Marion Counties, Arkansas

This map summarizes the geology of the St. Joe 7.5-minute quadrangle in the Ozark Plateaus region of northern Arkansas. Geologically, the area lies on the southern flank of the Ozark dome, an uplift that exposes oldest rocks at its center in Missouri. Physiographically, the St. Joe quadrangle lies within the Springfield Plateau, a topographic surface generally held up by Mississippian...
By
Geosciences and Environmental Change Science Center

Geologic Map of the Boxley Quadrangle, Newton and Madison Counties, Arkansas

This map summarizes the geology of the Boxley 7.5-minute quadrangle in the Ozark Plateaus region of northern Arkansas. Geologically, the area lies on the southern flank of the Ozark dome, an uplift that exposes oldest rocks at its center in Missouri. Physiographically, the Boxley quadrangle lies within the Boston Mountains, a high plateau region underlain by Pennsylvanian sandstones and...
By
Geosciences and Environmental Change Science Center

Geologic map of the Western Grove quadrangle, northwestern Arkansas

This map summarizes the geology of the Western Grove 7.5-minute quadrangle in northern Arkansas that is located on the southern flank of the Ozark dome, a late Paleozoic regional uplift. The exposed bedrock of this map area comprises approximately 1,000 ft of Ordovician and Mississippian carbonate and clastic sedimentary rocks that have been mildly folded and broken by faults. A segment...
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Geosciences and Environmental Change Science Center

Mantle melting in regions of thick continental lithosphere: Examples from Late Cretaceous and younger volcanic rocks, Southern Rocky Mountains, Colorado (USA)

Major- and trace-element data together with Nd and Sr isotopic compositions and 40Ar/39Ar age determinations were obtained for Late Cretaceous and younger volcanic rocks from north-central Colorado, USA, in the Southern Rocky Mountains to assess the sources of mantle-derived melts in a region underlain by thick (≥150 km) continental lithosphere. Trachybasalt to trachyandesite lava flows...
Authors
Lang Farmer, Leah E. Morgan, M. Cosca, James Mize, Treasure Bailey, Kenzie J. Turner, Cameron Mark Mercer, Eric T Ellison, Aaron Bell
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center

The Seamless Integrated Geologic Mapping (SIGMa) extension to the Geologic Map Schema (GeMS)

Geologic maps are the fundamental building blocks of surface and subsurface three-dimensional geologic framework models of the Earth’s crust. However, as the production and availability of geologic map databases continues to increase, inconsistent data models and the lack of synthesized, national geologic map data at scales appropriate for informed decision making negatively affect the...
Authors
Kenzie J. Turner, Jeremiah B. Workman, Joseph P. Colgan, Amy K. Gilmer, Margaret E. Berry, Samuel Johnstone, Kathleen F. Warrell, Marieke Dechesne, D. Paco VanSistine, Ren A. Thompson, Adam M. Hudson, Kristine L. Zellman, Donald S. Sweetkind, Chester A. Ruleman
By
Geosciences and Environmental Change Science Center

Field-trip guide to continental arc to rift volcanism of the southern Rocky Mountains—Southern Rocky Mountain, Taos Plateau, and Jemez Mountains volcanic fields of southern Colorado and northern New Mexico

The southern Rocky Mountains of northern New Mexico and southern Colorado preserve the Oligocene to Pleistocene record of North American continental arc to rift volcanism. The 35–23 million year old (Ma) southern Rocky Mountain volcanic field (SRMVF), spectacularly preserved in the San Juan Mountains of southern Colorado, records the evolution of large andesitic stratovolcanoes to...
Authors
Ren A. Thompson, Kenzie J. Turner, Peter W. Lipman, John A. Wolff, Michael A. Dungan
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National Cooperative Geologic Mapping Program, Volcano Hazards Program, Geosciences and Environmental Change Science Center, Volcano Science Center

Late Paleozoic flexural extension and overprinting shortening in the southern Ozark dome, Arkansas, USA: Evolving fault kinematics in the foreland of the Ouachita orogen

Faults and folds on the southern flank of the Ozark dome in northern Arkansas, USA, record flexural extension in a foreland area followed by shortening in response to the late Paleozoic Ouachita orogeny. Map-scale structures and an analysis of fault-slip data collected systematically during geologic mapping demonstrate that most deformation in the area accommodated north-south extension...
Authors
Mark R. Hudson, Kenzie J. Turner
By
National Cooperative Geologic Mapping Program, Geosciences and Environmental Change Science Center

A shallow rift basin segmented in space and time: The southern San Luis Basin, Rio Grande rift, northern New Mexico, U.S.A.

Interpretation of gravity, magnetotelluric, and aeromagnetic data in conjunction with geologic constraints reveals details of basin geometry, thickness, and spatiotemporal evolution of the southern San Luis Basin, one of the major basins of the northern Rio Grande rift. Spatial variations of low-density basin-fill thickness are estimated primarily using a 3D gravity inversion method that...
Authors
Benjamin J. Drenth, V. J. Grauch, Kenzie J. Turner, Brian D. Rodriguez, Ren A. Thompson, Paul W. Bauer
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Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center

40Ar/39Ar Geochronology, Isotope Geochemistry (Sr, Nd, Pb), and petrology of alkaline lavas near Yampa, Colorado: migration of alkaline volcanism and evolution of the northern Rio Grande rift

Volcanic rocks near Yampa, Colorado (USA), represent one of several small late Miocene to Quaternary alkaline volcanic fields along the northeast margin of the Colorado Plateau. Basanite, trachybasalt, and basalt collected from six sites within the Yampa volcanic field were investigated to assess correlations with late Cenozoic extension and Rio Grande rifting. In this paper we report...
Authors
Michael A. Cosca, Ren A. Thompson, John P. Lee, Kenzie J. Turner, Leonid A. Neymark, Wayne R. Premo
By
Energy and Minerals Mission Area, Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center

Geophysical expression of elements of the Rio Grande rift in the northeast Tusas Mountains - Preliminary interpretations

New interpretations of the nature of the Rio Grande rift and pre-existing rocks in the northeast Tusas Mountains region are derived from new and existing gravity and aeromagnetic data. 12-15 mGal amplitude gravity lows are interpreted to mainly reflect large thicknesses of the upper Oligocene to upper Miocene, syn-rift Los Pinos Formation and possibly significant amounts of the Eocene El...
Authors
Benjamin J. Drenth, Kenzie J. Turner, Ren A. Thompson, V. J. Grauch, Michael A. Cosca, John Lee
By
Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center

Geological, geochemical, and geophysical studies by the U.S. Geological Survey in Big Bend National Park, Texas

Big Bend National Park (BBNP), Tex., covers 801,163 acres (3,242 km2) and was established in 1944 through a transfer of land from the State of Texas to the United States. The park is located along a 118-mile (190-km) stretch of the Rio Grande at the United States-Mexico border. The park is in the Chihuahuan Desert, an ecosystem with high mountain ranges and basin environments containing...
Authors
W. R. Page, K. J. Turner, R. G. Bohannon, M. E. Berry, V. S. Williams, D. P. Miggins, M. Ren, E. Y. Anthony, L. A. Morgan, P. W. C. Shanks, J. E. Gray, P. M. Theodorakos, David P. Krabbenhoft, A. H. Manning, P. A. Gemery-Hill, E. C. Hellgren, C. A. Stricker, D. P. Onorato, C. A. Finn, E. Anderson
By
Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center, Upper Midwest Water Science Center, Mercury Research Laboratory

Three-Dimensional Geologic Framework Model for a Karst Aquifer System, Hasty and Western Grove Quadrangles, Northern Arkansas

Understanding ground-water flow in a karst aquifer benefits from a detailed conception of the three-dimensional (3D) geologic framework. Traditional two-dimensional products, such as geologic maps, cross-sections, and structure contour maps, convey a mental picture of the area but a stronger conceptualization can be achieved by constructing a digital 3D representation of the...
Authors
Kenzie J. Turner, Mark R. Hudson, Kyle E. Murray, David N. Mott
By
Geosciences and Environmental Change Science Center

Preliminary geologic map of southernmost Texas, United States, and parts of Tamaulipas and Nuevo Leon, Mexico: Environmental health investigations in the United States-Mexico border region

No abstract available.
Authors
William R. Page, D. Paco VanSistine, Kenzie J. Turner
By
Water Resources Mission Area, Geosciences and Environmental Change Science Center

Conodont database and analysis of conodont color alteration patterns in the Las Vegas 30' X 60' quadrangle, Clark and Nye Counties, Nevada, and Inyo County, California

No abstract available.
Authors
Anita G. Harris, William R. Page, Andrea P. Krumhardt, John E. Repetski, Kenzie J. Turner

Intermountain West Seamless Geologic Map Explorer

The Intermountain West Seamless Geologic Map Explorer is an interactive mapping application that hosts surficial and bedrock geologic data layers for a transect from the Rio Grande rift to the Basin and Range.
By
Geosciences and Environmental Change Science Center

Science and Products

link
Rippling marine deposits with hammer shown for scale

Sedimentology and Structure Working Group

The Sedimentology and Structure Working Group supports the Geologic Framework of the Intermountain West Project by conducting research on sedimentary rocks and structural deformation to determine the processes controlling tectonic uplift, accommodation, and sedimentation, ultimately to develop stratigraphic and structural frameworks that expand the utility of geologic map relationships for process...
By
Geosciences and Environmental Change Science Center
link

Sedimentology and Structure Working Group

The Sedimentology and Structure Working Group supports the Geologic Framework of the Intermountain West Project by conducting research on sedimentary rocks and structural deformation to determine the processes controlling tectonic uplift, accommodation, and sedimentation, ultimately to develop stratigraphic and structural frameworks that expand the utility of geologic map relationships for process...
Learn More
link
Close up view of metagreywacke

Igneous and Metamorphic Working Group

The Igneous and Metamorphic Working Group supports the Geologic Framework of the Intermountain West Project by conducting research focused on understanding the magmatic and metamorphic processes that shaped the Intermountain West and their implications for mineral resource exploration and tectonic history.
By
Geosciences and Environmental Change Science Center
link

Igneous and Metamorphic Working Group

The Igneous and Metamorphic Working Group supports the Geologic Framework of the Intermountain West Project by conducting research focused on understanding the magmatic and metamorphic processes that shaped the Intermountain West and their implications for mineral resource exploration and tectonic history.
Learn More
link
Measuring paleoflow directions in the overturned beds of the Pennsylvanian Atoka Formation at the Paris Spillway, Paris, AR

Ozark Dome-Arkoma Basin-Ouachita Transect

The Ozark Dome-Arkoma Basin-Ouachita Transect (ODABOuT) project examines the three-dimensional geology of a transect of the southern orogenic margin of North America in its best surface exposure in western Arkansas. The Ozark Dome and Arkoma Basin represent a foreland uplift and foreland basin that formed as a result of the impinging Ouachita orogenic belt. Understanding the geometry and evolution...
By
Geosciences and Environmental Change Science Center
link

Ozark Dome-Arkoma Basin-Ouachita Transect

The Ozark Dome-Arkoma Basin-Ouachita Transect (ODABOuT) project examines the three-dimensional geology of a transect of the southern orogenic margin of North America in its best surface exposure in western Arkansas. The Ozark Dome and Arkoma Basin represent a foreland uplift and foreland basin that formed as a result of the impinging Ouachita orogenic belt. Understanding the geometry and evolution...
Learn More
link
Mt. Ouray, Colorado with aspen colors

Geologic Framework of the Intermountain West

The Geologic Framework of the Intermountain West (IMW) Project is creating a seamless, integrated, geologic map database that spans the Intermountain West region. The database will serve enhanced geologic map data to support geoscience research, environmental and resource assessments, and the communication of geologic information for all U.S. Geological Survey stakeholders. This innovative...
By
Geosciences and Environmental Change Science Center
link

Geologic Framework of the Intermountain West

The Geologic Framework of the Intermountain West (IMW) Project is creating a seamless, integrated, geologic map database that spans the Intermountain West region. The database will serve enhanced geologic map data to support geoscience research, environmental and resource assessments, and the communication of geologic information for all U.S. Geological Survey stakeholders. This innovative...
Learn More
link
Border fence on U.S.-Mexico border

U.S.-Mexico Border Geologic Framework

The primary objective of the U.S.-Mexico border project is to provide framework geology through geologic mapping activities to support border-wide science investigations including assessing and evaluating groundwater, energy and mineral, and ecological resources, and identifying and investigating natural hazards, including landslide, earthquake, wildfire, and flood hazards.
By
Geosciences and Environmental Change Science Center
link

U.S.-Mexico Border Geologic Framework

The primary objective of the U.S.-Mexico border project is to provide framework geology through geologic mapping activities to support border-wide science investigations including assessing and evaluating groundwater, energy and mineral, and ecological resources, and identifying and investigating natural hazards, including landslide, earthquake, wildfire, and flood hazards.
Learn More

Bedrock geologic map database for the Blanca Peak, Walsenburg, Trinidad, and Alamosa 30' x 60' quadrangles, Colorado

This data release presents geologic map data for the bedrock geology of the Blanca Peak, Walsenburg, Trinidad, and Alamosa 30' x 60' quadrangles, Colorado. Geologic mapping incorporates new interpretive contributions and compilation from published geologic map data sources primarily ranging from 1:24,000 to 1:50,000 scale. Much of the geology incorporated from published geologic maps is...
By
Geosciences and Environmental Change Science Center

Bedrock geologic map database for the Durango 1-degree x 2-degree quadrangle, southern Colorado: Contributions to the National Geologic Map (ver. 2.0, June 2024)

This data release presents geologic map data for the bedrock geology of the Durango 1-degree by 2-degree quadrangle. Geologic mapping incorporates new interpretive contributions and compilation from published geologic map data sources primarily ranging from 1:24,000 to 1:50,000 scale. Much of the geology incorporated from published geologic maps is adjusted based on digital elevation...
By
Geosciences and Environmental Change Science Center

Surficial geologic map database of the Durango 1-degree by 2-degree quadrangle, southern Colorado: Contributions to the National Geologic Map

This data release presents geologic map data for the surficial geology of the Durango 1-degree by 2-degree quadrangle and adjacent areas along the northern boundary of the quadrangle. The map area lies within two physiographic provinces of Fenneman (1928): the Southern Rocky Mountains province, and the Colorado Plateau province, Navajo section. Geologic mapping is mostly compiled from...
By
Geosciences and Environmental Change Science Center

Data release for geochronology and geochemistry of volcanic rocks in the Southern Rocky Mountains and Taos Plateau volcanic fields and other Oligocene to Pleistocene volcanic rocks within the southern San Luis Basin and San Juan Mountains, southern Colora

The dataset includes whole-rock geochemistry and 40Ar-39Ar geochronology for Pleistocene to Oligocene volcanic and intrusive rocks. These data support figures and tables in days 2 and 3 of the Field-trip guide to continental arc to rift volcanism of the southern Rocky Mountains-Southern Rocky Mountain, Taos Plateau, and Jemez Mountains volcanic fields of southern Colorado and northern...
By
National Cooperative Geologic Mapping Program, Geosciences and Environmental Change Science Center

Database for the geologic map of the upper Santa Cruz River basin, southern Arizona

This digital publication contains the database, base maps, and style files used to build the geologic map of the upper Santa Cruz River basin in southern Arizona published in U.S. Geological Survey Scientific Investigations Map 3490 (Page and others, 2023). Shapefiles are also included for the user’s convenience. In the database, there are polygon features outlining the map units and...
By
Geosciences and Environmental Change Science Center

Geologic setting and geomorphic history of the La Botica area, south-central Colorado

La Botica is positioned on a topographic bench sharply inset into the gentle eastern slope of the high San Juan Mountains and perched ~70-80 meters above La Jara Creek (fig. 1), a tributary to the Rio Grande. Quaternary surface processes have modified the Tertiary bedrock deposits that underlie La Botica to shape the physical environment. Bedrock deposits consist of Oligocene to Pliocene...
By
Geosciences and Environmental Change Science Center

Data release of geospatial map database, argon geochronology and geochemistry data for: Geologic map of the San Antonio Mountain area, northern New Mexico and southern Colorado

This dataset accompanies publication "Geologic map of the San Antonio Mountain area, northern New Mexico and southern Colorado". Data presented here include the digital geologic database, 40Ar/39Ar geochronology and major and trace element chemistry from lava flows and an ignimbrite. The geologic database includes spatial feature classes and non-spatial tables that collectively contain...
By
National Cooperative Geologic Mapping Program, Geosciences and Environmental Change Science Center

Data release of geospatial map database and structural measurements for: Geologic map of the Osage SW 7.5' quadrangle, Newton, Madison, and Carroll counties, Arkansas

This dataset accompanies publication "Geologic map of the Osage SW 7.5' quadrangle, Newton, Madison, and Carroll counties, Arkansas". Data presented here include the digital geologic database and structural measurements including joints, deformation bands, and small faults collected during field investigation. These data support the following publication: Turner, K.J., and Hudson, M.R...
By
National Cooperative Geologic Mapping Program, Geosciences and Environmental Change Science Center

Geologic map and hydrogeologic investigations of the upper Santa Cruz River basin, southern Arizona

This report includes an updated geologic map and cross sections of the upper Santa Cruz River basin, southern Arizona. The map and cross sections describe the geometry, thickness, and structure of the Miocene to Holocene units which form the main aquifers in the basin. The report also includes results of new hydrogeologic studies including (1) mapping and defining depth to bedrock based...
By
Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center

Geologic map of the San Antonio Mountain area, northern New Mexico and southern Colorado

The geologic map of the San Antonio Mountain area in northern New Mexico and southern Colorado is located along the west-central part of the San Luis Valley. The San Luis Valley is the geomorphic expression of the San Luis Basin, an extensional basin associated with the northern Rio Grande rift. Deposits within the map area record volcanic, sedimentary, and tectonic processes over the...
By
National Cooperative Geologic Mapping Program, Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center

Geologic map of the Osage SW 7.5ʹ quadrangle, Newton, Madison, and Carroll Counties, Arkansas

This map summarizes the geology of the U.S. Geological Survey Osage SW 7.5-minute quadrangle in the Ozark Plateaus region of northern Arkansas. Physiographically, the Osage SW quadrangle is located within a transitional area between the Boston Mountains to the south, and the Springfield Plateau to the north. Geologically, the area is on the southern flank of the Ozark dome; an uplift...
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Geosciences and Environmental Change Science Center

Geologic map of the Murray Quadrangle, Newton County, Arkansas

This map summarizes the geology of the Murray quadrangle in the Ozark Plateaus region of northern Arkansas. Geologically, the area is on the southern flank of the Ozark dome, an uplift that has the oldest rocks exposed at its center, in Missouri. Physiographically, the Murray quadrangle is within the Boston Mountains, a high plateau region underlain by Pennsylvanian sandstones and shales...
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Groundwater and Streamflow Information Program, Geosciences and Environmental Change Science Center

Geologic map of the west-central Buffalo National River region, northern Arkansas

This map summarizes the geology of the west-central Buffalo National River region in the Ozark Plateaus region of northern Arkansas. Geologically, the region lies on the southern flank of the Ozark dome, an uplift that exposes oldest rocks at its center in Missouri. Physiographically, the map area spans the Springfield Plateau, a topographic surface generally held up by Mississippian...
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Groundwater and Streamflow Information Program, Geosciences and Environmental Change Science Center

Geologic map of the Ute Mountain 7.5' quadrangle, Taos County, New Mexico, and Conejos and Costilla Counties, Colorado

The Ute Mountain 7.5' quadrangle is located in the south-central part of the San Luis Basin of northern New Mexico, in the Rio Grande del Norte National Monument, and contains deposits that record volcanic, tectonic, and associated alluvial and colluvial processes over the past four million years. Ute Mountain has the distinction of being one of the largest intermediate composition...
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Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center

Geologic map of the Sunshine 7.5' quadrangle, Taos County, New Mexico

The Sunshine 7.5' quadrangle is located in the south-central part of the San Luis Basin of northern New Mexico, in the Rio Grande del Norte National Monument, and contains deposits that record volcanic, tectonic, and associated alluvial and colluvial processes over the past four million years. Sunshine Valley, named for the small locale of Sunshine, is incised by a series of northeast...
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Geosciences and Environmental Change Science Center

Geologic map of Big Bend National Park, Texas

The purpose of this map is to provide the National Park Service and the public with an updated digital geologic map of Big Bend National Park (BBNP). The geologic map report of Maxwell and others (1967) provides a fully comprehensive account of the important volcanic, structural, geomorphological, and paleontological features that define BBNP. However, the map is on a geographically...
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Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center

Geologic map of the Maumee quadrangle, Searcy and Marion Counties, Arkansas

This map summarizes the geology of the Maumee 7.5-minute quadrangle in northern Arkansas. The map area is in the Ozark plateaus region on the southern flank of the Ozark dome. The Springfield Plateau, composed of Mississippian cherty limestone, overlies the Salem Plateau, composed of Ordovician carbonate and clastic rocks, with areas of Silurian rocks in between. Erosion related to the...
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Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center

Geologic map of the St. Joe quadrangle, Searcy and Marion Counties, Arkansas

This map summarizes the geology of the St. Joe 7.5-minute quadrangle in the Ozark Plateaus region of northern Arkansas. Geologically, the area lies on the southern flank of the Ozark dome, an uplift that exposes oldest rocks at its center in Missouri. Physiographically, the St. Joe quadrangle lies within the Springfield Plateau, a topographic surface generally held up by Mississippian...
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Geosciences and Environmental Change Science Center

Geologic Map of the Boxley Quadrangle, Newton and Madison Counties, Arkansas

This map summarizes the geology of the Boxley 7.5-minute quadrangle in the Ozark Plateaus region of northern Arkansas. Geologically, the area lies on the southern flank of the Ozark dome, an uplift that exposes oldest rocks at its center in Missouri. Physiographically, the Boxley quadrangle lies within the Boston Mountains, a high plateau region underlain by Pennsylvanian sandstones and...
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Geosciences and Environmental Change Science Center

Geologic map of the Western Grove quadrangle, northwestern Arkansas

This map summarizes the geology of the Western Grove 7.5-minute quadrangle in northern Arkansas that is located on the southern flank of the Ozark dome, a late Paleozoic regional uplift. The exposed bedrock of this map area comprises approximately 1,000 ft of Ordovician and Mississippian carbonate and clastic sedimentary rocks that have been mildly folded and broken by faults. A segment...
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Geosciences and Environmental Change Science Center

Mantle melting in regions of thick continental lithosphere: Examples from Late Cretaceous and younger volcanic rocks, Southern Rocky Mountains, Colorado (USA)

Major- and trace-element data together with Nd and Sr isotopic compositions and 40Ar/39Ar age determinations were obtained for Late Cretaceous and younger volcanic rocks from north-central Colorado, USA, in the Southern Rocky Mountains to assess the sources of mantle-derived melts in a region underlain by thick (≥150 km) continental lithosphere. Trachybasalt to trachyandesite lava flows...
Authors
Lang Farmer, Leah E. Morgan, M. Cosca, James Mize, Treasure Bailey, Kenzie J. Turner, Cameron Mark Mercer, Eric T Ellison, Aaron Bell
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center

The Seamless Integrated Geologic Mapping (SIGMa) extension to the Geologic Map Schema (GeMS)

Geologic maps are the fundamental building blocks of surface and subsurface three-dimensional geologic framework models of the Earth’s crust. However, as the production and availability of geologic map databases continues to increase, inconsistent data models and the lack of synthesized, national geologic map data at scales appropriate for informed decision making negatively affect the...
Authors
Kenzie J. Turner, Jeremiah B. Workman, Joseph P. Colgan, Amy K. Gilmer, Margaret E. Berry, Samuel Johnstone, Kathleen F. Warrell, Marieke Dechesne, D. Paco VanSistine, Ren A. Thompson, Adam M. Hudson, Kristine L. Zellman, Donald S. Sweetkind, Chester A. Ruleman
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Geosciences and Environmental Change Science Center

Field-trip guide to continental arc to rift volcanism of the southern Rocky Mountains—Southern Rocky Mountain, Taos Plateau, and Jemez Mountains volcanic fields of southern Colorado and northern New Mexico

The southern Rocky Mountains of northern New Mexico and southern Colorado preserve the Oligocene to Pleistocene record of North American continental arc to rift volcanism. The 35–23 million year old (Ma) southern Rocky Mountain volcanic field (SRMVF), spectacularly preserved in the San Juan Mountains of southern Colorado, records the evolution of large andesitic stratovolcanoes to...
Authors
Ren A. Thompson, Kenzie J. Turner, Peter W. Lipman, John A. Wolff, Michael A. Dungan
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National Cooperative Geologic Mapping Program, Volcano Hazards Program, Geosciences and Environmental Change Science Center, Volcano Science Center

Late Paleozoic flexural extension and overprinting shortening in the southern Ozark dome, Arkansas, USA: Evolving fault kinematics in the foreland of the Ouachita orogen

Faults and folds on the southern flank of the Ozark dome in northern Arkansas, USA, record flexural extension in a foreland area followed by shortening in response to the late Paleozoic Ouachita orogeny. Map-scale structures and an analysis of fault-slip data collected systematically during geologic mapping demonstrate that most deformation in the area accommodated north-south extension...
Authors
Mark R. Hudson, Kenzie J. Turner
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National Cooperative Geologic Mapping Program, Geosciences and Environmental Change Science Center

A shallow rift basin segmented in space and time: The southern San Luis Basin, Rio Grande rift, northern New Mexico, U.S.A.

Interpretation of gravity, magnetotelluric, and aeromagnetic data in conjunction with geologic constraints reveals details of basin geometry, thickness, and spatiotemporal evolution of the southern San Luis Basin, one of the major basins of the northern Rio Grande rift. Spatial variations of low-density basin-fill thickness are estimated primarily using a 3D gravity inversion method that...
Authors
Benjamin J. Drenth, V. J. Grauch, Kenzie J. Turner, Brian D. Rodriguez, Ren A. Thompson, Paul W. Bauer
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Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center

40Ar/39Ar Geochronology, Isotope Geochemistry (Sr, Nd, Pb), and petrology of alkaline lavas near Yampa, Colorado: migration of alkaline volcanism and evolution of the northern Rio Grande rift

Volcanic rocks near Yampa, Colorado (USA), represent one of several small late Miocene to Quaternary alkaline volcanic fields along the northeast margin of the Colorado Plateau. Basanite, trachybasalt, and basalt collected from six sites within the Yampa volcanic field were investigated to assess correlations with late Cenozoic extension and Rio Grande rifting. In this paper we report...
Authors
Michael A. Cosca, Ren A. Thompson, John P. Lee, Kenzie J. Turner, Leonid A. Neymark, Wayne R. Premo
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Energy and Minerals Mission Area, Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center

Geophysical expression of elements of the Rio Grande rift in the northeast Tusas Mountains - Preliminary interpretations

New interpretations of the nature of the Rio Grande rift and pre-existing rocks in the northeast Tusas Mountains region are derived from new and existing gravity and aeromagnetic data. 12-15 mGal amplitude gravity lows are interpreted to mainly reflect large thicknesses of the upper Oligocene to upper Miocene, syn-rift Los Pinos Formation and possibly significant amounts of the Eocene El...
Authors
Benjamin J. Drenth, Kenzie J. Turner, Ren A. Thompson, V. J. Grauch, Michael A. Cosca, John Lee
By
Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center

Geological, geochemical, and geophysical studies by the U.S. Geological Survey in Big Bend National Park, Texas

Big Bend National Park (BBNP), Tex., covers 801,163 acres (3,242 km2) and was established in 1944 through a transfer of land from the State of Texas to the United States. The park is located along a 118-mile (190-km) stretch of the Rio Grande at the United States-Mexico border. The park is in the Chihuahuan Desert, an ecosystem with high mountain ranges and basin environments containing...
Authors
W. R. Page, K. J. Turner, R. G. Bohannon, M. E. Berry, V. S. Williams, D. P. Miggins, M. Ren, E. Y. Anthony, L. A. Morgan, P. W. C. Shanks, J. E. Gray, P. M. Theodorakos, David P. Krabbenhoft, A. H. Manning, P. A. Gemery-Hill, E. C. Hellgren, C. A. Stricker, D. P. Onorato, C. A. Finn, E. Anderson
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Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center, Upper Midwest Water Science Center, Mercury Research Laboratory

Three-Dimensional Geologic Framework Model for a Karst Aquifer System, Hasty and Western Grove Quadrangles, Northern Arkansas

Understanding ground-water flow in a karst aquifer benefits from a detailed conception of the three-dimensional (3D) geologic framework. Traditional two-dimensional products, such as geologic maps, cross-sections, and structure contour maps, convey a mental picture of the area but a stronger conceptualization can be achieved by constructing a digital 3D representation of the...
Authors
Kenzie J. Turner, Mark R. Hudson, Kyle E. Murray, David N. Mott
By
Geosciences and Environmental Change Science Center

Preliminary geologic map of southernmost Texas, United States, and parts of Tamaulipas and Nuevo Leon, Mexico: Environmental health investigations in the United States-Mexico border region

No abstract available.
Authors
William R. Page, D. Paco VanSistine, Kenzie J. Turner
By
Water Resources Mission Area, Geosciences and Environmental Change Science Center

Conodont database and analysis of conodont color alteration patterns in the Las Vegas 30' X 60' quadrangle, Clark and Nye Counties, Nevada, and Inyo County, California

No abstract available.
Authors
Anita G. Harris, William R. Page, Andrea P. Krumhardt, John E. Repetski, Kenzie J. Turner

Intermountain West Seamless Geologic Map Explorer

The Intermountain West Seamless Geologic Map Explorer is an interactive mapping application that hosts surficial and bedrock geologic data layers for a transect from the Rio Grande rift to the Basin and Range.
By
Geosciences and Environmental Change Science Center
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