Unified Interior Regions

Region 7: Upper Colorado Basin

Map of Region 7: Upper Colorado Basin

Map of Region 7:  Upper Colorado Basin

Map Showing USGS/DOI Unified Region 7 and parts of adjoining Regions

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USGS Science Centers in Region 7-Upper Colorado Basin produce hundreds of USGS-series publications, journal papers, and books each year that are subject to rigorous review by USGS specialists. The publications shown below on this page are related to study areas and staff members of USGS Science Centers in Region 7 compiled from the USGS Publications Warehouse.

Filter Total Items: 5,295
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Year Published: 2019

Orogenic recycling of detrital zircons characterizes age distributions of North American Cordilleran strata

Detrital zircon (DZ) analysis has become the standard tool for source‐to‐sink sediment routing studies at many spatial and temporal scales. In North American source‐to‐sink studies, DZ distributions are commonly classified according to the presence/absence and proportions of DZ age groups associated with North American crustal provinces as well as...

Schwartz, Theresa Maude; Schwartz, Robert K.; Weislogel, A.L.

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Year Published: 2019

3D geologic framework for use with the U.S. Geological Survey National Crustal Model, Phase 1—Western United States

A 3D geologic framework is presented here as part of the U.S. Geological Survey National Crustal Model for the western United States, which will be used to improve seismic hazard assessment. The framework is based on 1:250,000 to 1:1,000,000-scale state geologic maps and depths of multiple subsurface unit boundaries. The geology at or near the...

Boyd, Oliver S.
Boyd, O.S., 2019, 3D Geologic framework for use with the U.S. Geological Survey National Crustal Model, Phase 1—Western United States: U.S. Geological Survey Open-File Report 2019–1081, 36 p., https://doi.org/10.3133/ofr20191081.

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Year Published: 2019

Holocene earthquake history and slip rate of the southern Teton fault, Wyoming, USA

The 72-km-long Teton normal fault bounds the eastern base of the Teton Range in northwestern Wyoming, USA. Although geomorphic surfaces along the fault record latest Pleistocene to Holocene fault movement, the postglacial earthquake history of the fault has remained enigmatic. We excavated a paleoseismic trench at the Buffalo Bowl site along the...

Duross, Christopher; Gold, Ryan D.; Briggs, Richard W.; Delano, Jaime E.; Ostenaa, Dean A.; Zellman, Mark; Cholewinski, Nicole; Wittke, Seth; Mahan, Shannon A.

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Year Published: 2019

Using component ratios to detect metadata and instrument problems of seismic stations: Examples from 18 years of GEOSCOPE data

Replacement or deterioration of seismic instruments and the evolution of the installation conditions and sites can alter the seismic signal in very subtle ways, so it is notoriously difficult to monitor the signal quality of permanent seismic stations. We present a simple tool, energy ratios between each pair of the three recorded components,...

Pedersen, Helle A.; Leroy, Nicolas; Zigone, Dimitri; Vallée, Martin; Ringler, Adam T.; Wilson, David C.

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Year Published: 2019

The (mythical) M8.2 off coast of Peru earthquake of 12 December 1908

Global earthquake catalogs covering the early twentieth century differ in their listings of a large earthquake, or earthquakes, on 12 December 1908. Some catalogs list an M∼7">M∼7M∼7 earthquake originating in northern Myanmar (Burma) at ∼12:55">∼12:55∼12:55 UTC on that date. Other catalogs do not...

Di Giacomo, Domenico; Dewey, James W.

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Year Published: 2019

Remote sensing of tracer dye concentrations to support dispersion studies in river channels

In river channels the flow field influences the dispersion of biota, contaminants, and other suspended or dissolved materials. Insight on patterns and rates of dispersion can be gained by injecting a pulse of visible dye and observing spatial and temporal variations in dye concentration as the pulse moves downstream. We evaluated the potential of...

Legleiter, Carl J.; McDonald, Richard R.; Nelson, Jonathan M.; Kinzel, Paul J.; Perroy, Ryan L. ; Baek, Donghae; Seo, Il Won

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Year Published: 2019

Geospatial scaling of runoff and erosion modeling in the Chihuahuan Desert

Large-scale assessments of rangeland runoff and erosion require methods to extend plot-scale parameterizations to large areas. In this study, Rangeland Hydrology and Erosion Model (RHEM) parameters were developed from plot-scale foliar and ground-cover transect data for an arid, grass-shrub rangeland in southern New Mexico, and a method was...

Ball, Grady; Douglas-Mankin, Kyle R.

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Year Published: 2019

The Zn–Pb mineralization of Florida Canyon, an evaporite-related Mississippi Valley-type deposit in Bongará district, northern Peru

The Florida Canyon evaporite-related Zn–Pb sulfide deposit, in northern Peru, is one of the largest Mississippi Valley-type (MVT) deposits in South America. Triassic carbonate and former evaporite-bearing rocks of the Pucará Group host the ore bodies that comprise two different styles: (i) predominantly stratabound ore associated with hydrocarbon-...

de Oliveira, Saulo B; Leach, David L; Juliani, Caetano; Monteiro, Lena VS; Johnson, Craig A.

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Year Published: 2019

Dissolved organic matter in the deep TALDICE ice core: A nano-UPLC-nano-ESI-HRMS method

Trace organic compounds in deep ice cores supply important paleoclimatic information. Untargeted analyses of dissolved organic matter provide an overview of molecular species in ice samples however, sample volumes usually required for these analyses are generally not available from deep ice cores. Here, we developed an analytical method using a...

Zangrando, Roberta; Zanella, Veronica; Karroca, Ornela; Barbaro, Elena; Kehrwald, Natalie; Battistel, Dario; Gambaro, Andrea; Barbante, Carlo

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Year Published: 2019

Using stream-side groundwater discharge for geochemical exploration in mountainous terrain

Groundwater chemistry has been predominantly used in geochemical exploration studies to identify mineralized targets concealed under transported cover in areas with gentle topography. Another potentially valuable ap-plication that has received little attention is using groundwater chemistry to identify deposits concealed within mountain ridges. A...

Manning, Andrew H.; Morrison, Jean M.; Wanty, Richard; Mills, Christopher T.

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Year Published: 2019

The complexity of mudstone diagenesis - some insight from the Tøyen Formation, Lower to Middle Ordovician, southern Sweden

The Lower to Middle Ordovician Tøyen Shale in southern Sweden, a biostratigraphically well-dated siliciclastic mudstone unit, shows 18 distinct authigenic cements that include sulfides, carbonates, silicates, clays, and phosphates. Marcasite, sphalerite, galena, and six texturally distinct types of pyrite characterize the sulfides whereas only one...

Egenhoff, Sven; Fishman, Neil; Lowers, Heather A.; Ahlberg, Per

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Year Published: 2019

Variable normal-fault rupture behavior, northern Lost River fault zone, Idaho, USA

The 1983 Mw 6.9 Borah Peak earthquake generated ∼36 km of surface rupture along the Thousand Springs and Warm Springs sections of the Lost River fault zone (LRFZ, Idaho, USA). Although the rupture is a well-studied example of multisegment surface faulting, ambiguity remains regarding the degree to which a bedrock ridge and branch fault at the...

Duross, Christopher; Bunds, Michael P.; Gold, Ryan D.; Briggs, Richard W.; Reitman, Nadine G.; Personius, Stephen; Toké, Nathan A.

Photos and videos described and linked on this webpage come from a wide variety of USGS science activities and presentations performed by USGS Science Center staff members in the Region 7-Upper Colorado Basin.

Filter Total Items: 524

Mammoth Hot Springs - Travertine Terraces and Parade Ground Webcam

Yellowstone is a place of change, and this view highlights a place where change is constant and evident—the travertine terraces of Mammoth Hot Springs. Terraces form when water rises through limestone, which then allows the water to carry high amounts of dissolved calcium carbonate. At the surface, carbon dioxide is released and the calcium carbonate is deposited, forming

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Image: Ranch in the Green River Valley, Wyoming

Ranch in the Green River Valley, Wyoming

A section of the Upper Green River Valley in western Wyoming, just south of Yellowstone and Grand Teton National Parks, showing different ecosystems (such as forests, wetlands, and aquatic habitats) whose capacities for carbon storage and reduction of greenhouse gas emissions will be assessed by the USGS. Scientists with the USGS are assessing the potential to store carbon

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Pecos River Webcam Near Roswell, NM, Site #334716104175400

Pecos River Webcam Near Roswell, NM

Webcam image of the Pecos River near Roswell, New Mexico - Site #334716104175400

Image: Colorado Plateau

Colorado Plateau

The Colorado Plateau lies in the Four Corners region of the southwestern United States: western Colorado, northwestern New Mexico, southeastern and eastern Utah, and northern Arizona. Most of the area is drained by the Colorado River and its main tributaries.

This page includes links to Social Media accounts (top of page), Science Centers (middle of page), and Regional Office staff members (bottom of page) of the USGS Region 7--Upper Colorado Basin.