Dave Lidke (Former Employee)
Science and Products
Data Release for Geologic Map of the Pagosa Springs 7.5-minute quadrangle, Archuleta County, Colorado Data Release for Geologic Map of the Pagosa Springs 7.5-minute quadrangle, Archuleta County, Colorado
The Pagosa Springs geologic map is of the 7.5-minute quadrangle of the same name. It is located in southwestern Colorado, USA and shows the town of Pagosa Springs. The mapped area is southwest of the San Juan volcanic mountains (Oligocene) and north of the San Juan Basin. All bedrock units exposed in the map area are Upper Cretaceous in age except a minor canyon outcrop of Upper Jurassic...
Filter Total Items: 23
Geologic map of the Pagosa Springs 7.5' quadrangle, Archuleta County, Colorado Geologic map of the Pagosa Springs 7.5' quadrangle, Archuleta County, Colorado
The geologic map of the Pagosa Springs 7.5’ quadrangle in southwestern Colorado includes the town of Pagosa Springs that is partly known for its hot springs. The quadrangle is southwest of the San Juan volcanic mountains (Oligocene) and north of the San Juan Basin. All bedrock units exposed in the map area are Upper Cretaceous in age except a minor canyon outcrop of Jurassic rock. Early...
Geologic map of the Fittstown 7.5΄ quadrangle, Pontotoc and Johnston Counties, Oklahoma Geologic map of the Fittstown 7.5΄ quadrangle, Pontotoc and Johnston Counties, Oklahoma
This 1:24,000-scale geologic map includes new geologic mapping as well as compilation and revision of previous geologic maps in the area. Field investigations were carried out during 2009–2011 that included mapping and investigations of the geology and hydrology of the Chickasaw National Recreation Area, Oklahoma, west of the map area.The Fittstown quadrangle is in Pontotoc and Johnston...
Geologic map of Chickasaw National Recreation Area, Murray County, Oklahoma Geologic map of Chickasaw National Recreation Area, Murray County, Oklahoma
This 1:24,000-scale geologic map is a compilation of previous geologic maps and new geologic mapping of areas in and around Chickasaw National Recreation Area. The geologic map includes revisions of numerous unit contacts and faults and a number of previously “undifferentiated” rock units were subdivided in some areas. Numerous circular-shaped hills in and around Chickasaw National...
Logs and scarp data from a paleoseismic investigation of the Surprise Valley fault zone, Modoc County, California Logs and scarp data from a paleoseismic investigation of the Surprise Valley fault zone, Modoc County, California
This report contains field and laboratory data from a paleoseismic study of the Surprise Valley fault zone near Cedarville, California. The 85-km-long Surprise Valley fault zone forms the western active margin of the Basin and Range province in northeastern California. The down-to-the-east normal fault is marked by Holocene fault scarps along most of its length, from Fort Bidwell on the...
Paleoseismology of the Nephi Segment of the Wasatch Fault Zone, Juab County, Utah - Preliminary Results From Two Large Exploratory Trenches at Willow Creek Paleoseismology of the Nephi Segment of the Wasatch Fault Zone, Juab County, Utah - Preliminary Results From Two Large Exploratory Trenches at Willow Creek
In 2004, we identified a small parcel of U.S. Forest Service land at the mouth of Willow Creek (about 5 km west of Mona, Utah) that was suitable for trenching. At the Willow Creek site, which is near the middle of the southern strand of the Nephi segment, the WFZ has vertically displaced alluvial-fan deposits >6-7 m, forming large, steep, multiple-event scarps. In May 2005, we dug two 4-...
Trench Logs and Scarp Data from an Investigation of the Steens Fault Zone, Bog Hot Valley and Pueblo Valley, Humboldt County, Nevada Trench Logs and Scarp Data from an Investigation of the Steens Fault Zone, Bog Hot Valley and Pueblo Valley, Humboldt County, Nevada
Introduction: This report contains field and laboratory data from a study of the Steens fault zone near Denio, Nev. The 200-km-long Steens fault zone forms the longest, most topographically prominent fault-bounded escarpment in the Basin and Range of southern Oregon and northern Nevada. The down-to-the-east normal fault is marked by Holocene fault scarps along nearly half its length...
Geologic map of the Vail West quadrangle, Eagle County, Colorado Geologic map of the Vail West quadrangle, Eagle County, Colorado
This new 1:24,000-scale geologic map of the Vail West 7.5' quadrangle, as part of the USGS Western Colorado I-70 Corridor Cooperative Geologic Mapping Project, provides new interpretations of the stratigraphy, structure, and geologic hazards in the area on the southwest flank of the Gore Range. Bedrock strata include Miocene tuffaceous sedimentary rocks, Mesozoic and upper Paleozoic s
Geologic map of the Eagle Quadrangle, Eagle County, Colorado Geologic map of the Eagle Quadrangle, Eagle County, Colorado
The Eagle quadrangle covers an area that straddles the Eagle River and Interstate 70 (I-70) and it includes the town of Eagle, Colo., which is located in the southwestern part of the quadrangle, just south of I-70 and the Eagle River, about 37 km west of Vail, Colo. The map area is part of the I-70 urban corridor, which is experiencing rapid and escalating urban growth. Geologic mapping...
Geologic map of the western part of the Cut Bank 1° x 2° quadrangle, northwestern Montana Geologic map of the western part of the Cut Bank 1° x 2° quadrangle, northwestern Montana
The paper geologic map of the western part of the Cut Bank 1° x 2° quadrangle, northwestern Montana (Harrison and others, 1998) was digitized and initially attributed by the Montana Bureau of Mines and Geology (MBMG) and remitted to the U.S. Geological Survey for further attribution and publication of the geospatial digital files. The resulting digital geologic map GIS can be queried in...
Filter Total Items: 23
Generalized surficial geologic map of the Fort Irwin Area, San Bernardino County, California Generalized surficial geologic map of the Fort Irwin Area, San Bernardino County, California
The geology and landscape of the Fort Irwin area, typical of many parts of the Mojave Desert, consist of rugged mountains separated by broad alluviated valleys that form the main coarse-resolution features of the geologic map. Crystalline and sedimentary rocks, Mesozoic and older in age, form most of the mountains with lesser accumulations of Miocene sedimentary and volcanic rocks. In...
Authors
David M. Miller, Christopher Menges, David Lidke
By
Geology, Energy, and Minerals Mission Area, Energy Resources Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Groundwater and Streamflow Information Program, Geosciences and Environmental Change Science Center, Geology, Minerals, Energy, and Geophysics Science Center
Preliminary surficial geologic map of the Newberry Springs 30' x 60' quadrangle, California Preliminary surficial geologic map of the Newberry Springs 30' x 60' quadrangle, California
The Newberry Springs 30' x 60' quadrangle is located in the central Mojave Desert of southern California. It is split approximately into northern and southern halves by I-40, with the city of Barstow at its western edge and the town of Ludlow near its eastern edge. The map area spans lat 34°30 to 35° N. to long -116 °to -117° W. and covers over 1,000 km2. We integrate the results of...
Authors
G. Phelps, D. Bedford, D. J. Lidke, D. M. Miller, K. M. Schmidt
Cover sequences at the northern margin of the Antongil Craton, NE Madagascar Cover sequences at the northern margin of the Antongil Craton, NE Madagascar
The island of Madagascar is a collage of Precambrian, generally high-grade metamorphic basement domains, that are locally overlain by unmetamorphosed sedimentary rocks and poorly understood low-grade metasediments. In the Antalaha area of NE Madagascar, two distinct cover sequences rest on high-grade metamorphic and igneous basement rocks of the Archaean Antongil craton and the...
Authors
W. Bauer, G. J. Walsh, B. De Waele, Ronald J. Thomas, M. Horstwood, L. Bracciali, D. Schofield, U. Wollenberg, D. J. Lidke, I.T. Rasaona, M.H. Rabarimanana
Polyphase Neoproterozoic orogenesis within the east Africa- Antarctica orogenic belt in central and northern Madagascar Polyphase Neoproterozoic orogenesis within the east Africa- Antarctica orogenic belt in central and northern Madagascar
Our recent geological survey of the basement of central and northern Madagascar allowed us to re-evaluate the evolution of this part of the East Africa-Antarctica Orogen (EAAO). Five crustal domains are recognized, characterized by distinctive lithologies and histories of sedimentation, magmatism, deformation and metamorphism, and separated by tectonic and/or unconformable contacts. Four...
Authors
R. Key, P. E. J. Pitfield, Ronald J. Thomas, K. Goodenough, D. Waele, D. Schofield, W. Bauer, M. Horstwood, M.T. Styles, J. Conrad, J. Encarnacion, D. J. Lidke, E. O’connor, C. Potter, R. Smith, G. J. Walsh, A.V. Ralison, T. Randriamananjara, J. Rafahatelo, M. Rabarimanana
Geological evolution of the Antongil Craton, NE Madagascar Geological evolution of the Antongil Craton, NE Madagascar
The Antongil Craton, along with the Masora and Antananarivo cratons, make up the fundamental Archaean building blocks of the island of Madagascar. They were juxtaposed during the late-Neoproterozoic to early Palaeozoic assembly of Gondwana. In this paper we give a synthesis of the geology of the Antongil Craton and present previously published and new geochemical and U-Pb zircon analyses...
Authors
D. Schofield, Ronald J. Thomas, K. Goodenough, B. De Waele, P. E. J. Pitfield, R. Key, W. Bauer, G. J. Walsh, D. J. Lidke, A.V. Ralison, M. Rabarimanana, J. Rafahatelo, T. Randriamananjara
Moderate rates of late Quaternary slip along the northwestern margin of the Basin and Range Province, Surprise Valley fault, northeastern California Moderate rates of late Quaternary slip along the northwestern margin of the Basin and Range Province, Surprise Valley fault, northeastern California
The 86-km-long Surprise Valley normal fault forms part of the active northwestern margin of the Basin and Range province in northeastern California. We use trench mapping and radiocarbon, luminescence, and tephra dating to estimate displacements and timing of the past five surface-rupturing earthquakes on the central part of the fault near Cedarville. A Bayesian OxCal analysis of timing...
Authors
Stephen Personius, Anthony Crone, Michael N. Machette, Shannon Mahan, David Lidke
Landslides Mapped from LIDAR Imagery, Kitsap County, Washington Landslides Mapped from LIDAR Imagery, Kitsap County, Washington
Landslides are a recurring problem on hillslopes throughout the Puget Lowland, Washington, but can be difficult to identify in the densely forested terrain. However, digital terrain models of the bare-earth surface derived from LIght Detection And Ranging (LIDAR) data express topographic details sufficiently well to identify landslides. Landslides and escarpments were mapped using LIDAR...
Authors
Jonathan P. McKenna, David Lidke, Jeffrey Coe
Modeling the spatial distribution of landslide-prone colluvium and shallow groundwater on hillslopes of Seattle, WA Modeling the spatial distribution of landslide-prone colluvium and shallow groundwater on hillslopes of Seattle, WA
Landslides in partially saturated colluvium on Seattle, WA, hillslopes have resulted in property damage and human casualties. We developed statistical models of colluvium and shallow-groundwater distributions to aid landslide hazard assessments. The models were developed using a geographic information system, digital geologic maps, digital topography, subsurface exploration results, the...
Authors
W.H. Schulz, D. J. Lidke, J. W. Godt
Late quaternary paleoseismology of the southern Steens fault zone, northern Nevada Late quaternary paleoseismology of the southern Steens fault zone, northern Nevada
The 192-km-long Steens fault zone is the most prominent normal fault system in the northern Basin and Range province of western North America. We use trench mapping and radiometric dating to estimate displacements and timing of the last three surface-rupturing earthquakes (E1-E3) on the southern part of the fault south of Denio, Nevada. Coseismic displacements range from 1.1 to 2.2 ?? 0...
Authors
S. F. Personius, A. Crone, M. Machette, S. A. Mahan, J.B. Kyung, H. Cisneros, D. J. Lidke
Map and data for Quaternary faults and folds in Washington state Map and data for Quaternary faults and folds in Washington state
The map shows faults and folds in Washington State that exhibit evidence of Quaternary deformation and includes data on timing of most recent movement, sense of movement, slip rate, and continuity of surface expression.
Authors
David Lidke, Samuel Johnson, Patricia McCrory, Stephen Personius, Alan Nelson, Richard Dart, Lee-Ann Bradley, Kathleen M. Haller, Michael N. Machette
Seasonal movement of the Slumgullion landslide determined from global positioning system surveys and field instrumentation, July 1998-March 2002 Seasonal movement of the Slumgullion landslide determined from global positioning system surveys and field instrumentation, July 1998-March 2002
Measurements of landslide movement made by global positioning system surveys and extensometers over a 3.5-year period show that the Slumgullion landslide in the San Juan Mountains of southwest Colorado moved throughout the monitoring period, but that daily velocities varied on a seasonal basis. Landslide velocities peaked in the early spring and summer in response to snowmelt and summer...
Authors
J. Coe, W. L. Ellis, J. W. Godt, W. Savage, J. Savage, J. Michael, J.D. Kibler, P. Powers, D. J. Lidke, S. Debray
Eagle collapse center: Interpretation of evidence for late Cenozoic evaporite-related deformation in the Eagle River basin, Colorado Eagle collapse center: Interpretation of evidence for late Cenozoic evaporite-related deformation in the Eagle River basin, Colorado
Evaporite tectonism resulted in deformation and collapse over an area of ~2500 km2 that is referred to as the Eagle collapse center. The collapse center includes much of the Eagle and Colorado River drainage basins between Vail, Dotsero, and McCoy, Colorado. The volume loss of evaporitic rocks by dissolution in the collapse center is estimated to be nearly 1700 km33 . Before ca. 10 Ma...
Authors
David Lidke, Mark R. Hudson, R. Scott, Ralph Shroba, Michael Kunk, W. Perry, R. M. Kirkham, James Budahn, R. Streufert, J.O. Stanley, B.L. Widmann
Science and Products
Data Release for Geologic Map of the Pagosa Springs 7.5-minute quadrangle, Archuleta County, Colorado Data Release for Geologic Map of the Pagosa Springs 7.5-minute quadrangle, Archuleta County, Colorado
The Pagosa Springs geologic map is of the 7.5-minute quadrangle of the same name. It is located in southwestern Colorado, USA and shows the town of Pagosa Springs. The mapped area is southwest of the San Juan volcanic mountains (Oligocene) and north of the San Juan Basin. All bedrock units exposed in the map area are Upper Cretaceous in age except a minor canyon outcrop of Upper Jurassic...
Filter Total Items: 23
Geologic map of the Pagosa Springs 7.5' quadrangle, Archuleta County, Colorado Geologic map of the Pagosa Springs 7.5' quadrangle, Archuleta County, Colorado
The geologic map of the Pagosa Springs 7.5’ quadrangle in southwestern Colorado includes the town of Pagosa Springs that is partly known for its hot springs. The quadrangle is southwest of the San Juan volcanic mountains (Oligocene) and north of the San Juan Basin. All bedrock units exposed in the map area are Upper Cretaceous in age except a minor canyon outcrop of Jurassic rock. Early...
Geologic map of the Fittstown 7.5΄ quadrangle, Pontotoc and Johnston Counties, Oklahoma Geologic map of the Fittstown 7.5΄ quadrangle, Pontotoc and Johnston Counties, Oklahoma
This 1:24,000-scale geologic map includes new geologic mapping as well as compilation and revision of previous geologic maps in the area. Field investigations were carried out during 2009–2011 that included mapping and investigations of the geology and hydrology of the Chickasaw National Recreation Area, Oklahoma, west of the map area.The Fittstown quadrangle is in Pontotoc and Johnston...
Geologic map of Chickasaw National Recreation Area, Murray County, Oklahoma Geologic map of Chickasaw National Recreation Area, Murray County, Oklahoma
This 1:24,000-scale geologic map is a compilation of previous geologic maps and new geologic mapping of areas in and around Chickasaw National Recreation Area. The geologic map includes revisions of numerous unit contacts and faults and a number of previously “undifferentiated” rock units were subdivided in some areas. Numerous circular-shaped hills in and around Chickasaw National...
Logs and scarp data from a paleoseismic investigation of the Surprise Valley fault zone, Modoc County, California Logs and scarp data from a paleoseismic investigation of the Surprise Valley fault zone, Modoc County, California
This report contains field and laboratory data from a paleoseismic study of the Surprise Valley fault zone near Cedarville, California. The 85-km-long Surprise Valley fault zone forms the western active margin of the Basin and Range province in northeastern California. The down-to-the-east normal fault is marked by Holocene fault scarps along most of its length, from Fort Bidwell on the...
Paleoseismology of the Nephi Segment of the Wasatch Fault Zone, Juab County, Utah - Preliminary Results From Two Large Exploratory Trenches at Willow Creek Paleoseismology of the Nephi Segment of the Wasatch Fault Zone, Juab County, Utah - Preliminary Results From Two Large Exploratory Trenches at Willow Creek
In 2004, we identified a small parcel of U.S. Forest Service land at the mouth of Willow Creek (about 5 km west of Mona, Utah) that was suitable for trenching. At the Willow Creek site, which is near the middle of the southern strand of the Nephi segment, the WFZ has vertically displaced alluvial-fan deposits >6-7 m, forming large, steep, multiple-event scarps. In May 2005, we dug two 4-...
Trench Logs and Scarp Data from an Investigation of the Steens Fault Zone, Bog Hot Valley and Pueblo Valley, Humboldt County, Nevada Trench Logs and Scarp Data from an Investigation of the Steens Fault Zone, Bog Hot Valley and Pueblo Valley, Humboldt County, Nevada
Introduction: This report contains field and laboratory data from a study of the Steens fault zone near Denio, Nev. The 200-km-long Steens fault zone forms the longest, most topographically prominent fault-bounded escarpment in the Basin and Range of southern Oregon and northern Nevada. The down-to-the-east normal fault is marked by Holocene fault scarps along nearly half its length...
Geologic map of the Vail West quadrangle, Eagle County, Colorado Geologic map of the Vail West quadrangle, Eagle County, Colorado
This new 1:24,000-scale geologic map of the Vail West 7.5' quadrangle, as part of the USGS Western Colorado I-70 Corridor Cooperative Geologic Mapping Project, provides new interpretations of the stratigraphy, structure, and geologic hazards in the area on the southwest flank of the Gore Range. Bedrock strata include Miocene tuffaceous sedimentary rocks, Mesozoic and upper Paleozoic s
Geologic map of the Eagle Quadrangle, Eagle County, Colorado Geologic map of the Eagle Quadrangle, Eagle County, Colorado
The Eagle quadrangle covers an area that straddles the Eagle River and Interstate 70 (I-70) and it includes the town of Eagle, Colo., which is located in the southwestern part of the quadrangle, just south of I-70 and the Eagle River, about 37 km west of Vail, Colo. The map area is part of the I-70 urban corridor, which is experiencing rapid and escalating urban growth. Geologic mapping...
Geologic map of the western part of the Cut Bank 1° x 2° quadrangle, northwestern Montana Geologic map of the western part of the Cut Bank 1° x 2° quadrangle, northwestern Montana
The paper geologic map of the western part of the Cut Bank 1° x 2° quadrangle, northwestern Montana (Harrison and others, 1998) was digitized and initially attributed by the Montana Bureau of Mines and Geology (MBMG) and remitted to the U.S. Geological Survey for further attribution and publication of the geospatial digital files. The resulting digital geologic map GIS can be queried in...
Filter Total Items: 23
Generalized surficial geologic map of the Fort Irwin Area, San Bernardino County, California Generalized surficial geologic map of the Fort Irwin Area, San Bernardino County, California
The geology and landscape of the Fort Irwin area, typical of many parts of the Mojave Desert, consist of rugged mountains separated by broad alluviated valleys that form the main coarse-resolution features of the geologic map. Crystalline and sedimentary rocks, Mesozoic and older in age, form most of the mountains with lesser accumulations of Miocene sedimentary and volcanic rocks. In...
Authors
David M. Miller, Christopher Menges, David Lidke
By
Geology, Energy, and Minerals Mission Area, Energy Resources Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Groundwater and Streamflow Information Program, Geosciences and Environmental Change Science Center, Geology, Minerals, Energy, and Geophysics Science Center
Preliminary surficial geologic map of the Newberry Springs 30' x 60' quadrangle, California Preliminary surficial geologic map of the Newberry Springs 30' x 60' quadrangle, California
The Newberry Springs 30' x 60' quadrangle is located in the central Mojave Desert of southern California. It is split approximately into northern and southern halves by I-40, with the city of Barstow at its western edge and the town of Ludlow near its eastern edge. The map area spans lat 34°30 to 35° N. to long -116 °to -117° W. and covers over 1,000 km2. We integrate the results of...
Authors
G. Phelps, D. Bedford, D. J. Lidke, D. M. Miller, K. M. Schmidt
Cover sequences at the northern margin of the Antongil Craton, NE Madagascar Cover sequences at the northern margin of the Antongil Craton, NE Madagascar
The island of Madagascar is a collage of Precambrian, generally high-grade metamorphic basement domains, that are locally overlain by unmetamorphosed sedimentary rocks and poorly understood low-grade metasediments. In the Antalaha area of NE Madagascar, two distinct cover sequences rest on high-grade metamorphic and igneous basement rocks of the Archaean Antongil craton and the...
Authors
W. Bauer, G. J. Walsh, B. De Waele, Ronald J. Thomas, M. Horstwood, L. Bracciali, D. Schofield, U. Wollenberg, D. J. Lidke, I.T. Rasaona, M.H. Rabarimanana
Polyphase Neoproterozoic orogenesis within the east Africa- Antarctica orogenic belt in central and northern Madagascar Polyphase Neoproterozoic orogenesis within the east Africa- Antarctica orogenic belt in central and northern Madagascar
Our recent geological survey of the basement of central and northern Madagascar allowed us to re-evaluate the evolution of this part of the East Africa-Antarctica Orogen (EAAO). Five crustal domains are recognized, characterized by distinctive lithologies and histories of sedimentation, magmatism, deformation and metamorphism, and separated by tectonic and/or unconformable contacts. Four...
Authors
R. Key, P. E. J. Pitfield, Ronald J. Thomas, K. Goodenough, D. Waele, D. Schofield, W. Bauer, M. Horstwood, M.T. Styles, J. Conrad, J. Encarnacion, D. J. Lidke, E. O’connor, C. Potter, R. Smith, G. J. Walsh, A.V. Ralison, T. Randriamananjara, J. Rafahatelo, M. Rabarimanana
Geological evolution of the Antongil Craton, NE Madagascar Geological evolution of the Antongil Craton, NE Madagascar
The Antongil Craton, along with the Masora and Antananarivo cratons, make up the fundamental Archaean building blocks of the island of Madagascar. They were juxtaposed during the late-Neoproterozoic to early Palaeozoic assembly of Gondwana. In this paper we give a synthesis of the geology of the Antongil Craton and present previously published and new geochemical and U-Pb zircon analyses...
Authors
D. Schofield, Ronald J. Thomas, K. Goodenough, B. De Waele, P. E. J. Pitfield, R. Key, W. Bauer, G. J. Walsh, D. J. Lidke, A.V. Ralison, M. Rabarimanana, J. Rafahatelo, T. Randriamananjara
Moderate rates of late Quaternary slip along the northwestern margin of the Basin and Range Province, Surprise Valley fault, northeastern California Moderate rates of late Quaternary slip along the northwestern margin of the Basin and Range Province, Surprise Valley fault, northeastern California
The 86-km-long Surprise Valley normal fault forms part of the active northwestern margin of the Basin and Range province in northeastern California. We use trench mapping and radiocarbon, luminescence, and tephra dating to estimate displacements and timing of the past five surface-rupturing earthquakes on the central part of the fault near Cedarville. A Bayesian OxCal analysis of timing...
Authors
Stephen Personius, Anthony Crone, Michael N. Machette, Shannon Mahan, David Lidke
Landslides Mapped from LIDAR Imagery, Kitsap County, Washington Landslides Mapped from LIDAR Imagery, Kitsap County, Washington
Landslides are a recurring problem on hillslopes throughout the Puget Lowland, Washington, but can be difficult to identify in the densely forested terrain. However, digital terrain models of the bare-earth surface derived from LIght Detection And Ranging (LIDAR) data express topographic details sufficiently well to identify landslides. Landslides and escarpments were mapped using LIDAR...
Authors
Jonathan P. McKenna, David Lidke, Jeffrey Coe
Modeling the spatial distribution of landslide-prone colluvium and shallow groundwater on hillslopes of Seattle, WA Modeling the spatial distribution of landslide-prone colluvium and shallow groundwater on hillslopes of Seattle, WA
Landslides in partially saturated colluvium on Seattle, WA, hillslopes have resulted in property damage and human casualties. We developed statistical models of colluvium and shallow-groundwater distributions to aid landslide hazard assessments. The models were developed using a geographic information system, digital geologic maps, digital topography, subsurface exploration results, the...
Authors
W.H. Schulz, D. J. Lidke, J. W. Godt
Late quaternary paleoseismology of the southern Steens fault zone, northern Nevada Late quaternary paleoseismology of the southern Steens fault zone, northern Nevada
The 192-km-long Steens fault zone is the most prominent normal fault system in the northern Basin and Range province of western North America. We use trench mapping and radiometric dating to estimate displacements and timing of the last three surface-rupturing earthquakes (E1-E3) on the southern part of the fault south of Denio, Nevada. Coseismic displacements range from 1.1 to 2.2 ?? 0...
Authors
S. F. Personius, A. Crone, M. Machette, S. A. Mahan, J.B. Kyung, H. Cisneros, D. J. Lidke
Map and data for Quaternary faults and folds in Washington state Map and data for Quaternary faults and folds in Washington state
The map shows faults and folds in Washington State that exhibit evidence of Quaternary deformation and includes data on timing of most recent movement, sense of movement, slip rate, and continuity of surface expression.
Authors
David Lidke, Samuel Johnson, Patricia McCrory, Stephen Personius, Alan Nelson, Richard Dart, Lee-Ann Bradley, Kathleen M. Haller, Michael N. Machette
Seasonal movement of the Slumgullion landslide determined from global positioning system surveys and field instrumentation, July 1998-March 2002 Seasonal movement of the Slumgullion landslide determined from global positioning system surveys and field instrumentation, July 1998-March 2002
Measurements of landslide movement made by global positioning system surveys and extensometers over a 3.5-year period show that the Slumgullion landslide in the San Juan Mountains of southwest Colorado moved throughout the monitoring period, but that daily velocities varied on a seasonal basis. Landslide velocities peaked in the early spring and summer in response to snowmelt and summer...
Authors
J. Coe, W. L. Ellis, J. W. Godt, W. Savage, J. Savage, J. Michael, J.D. Kibler, P. Powers, D. J. Lidke, S. Debray
Eagle collapse center: Interpretation of evidence for late Cenozoic evaporite-related deformation in the Eagle River basin, Colorado Eagle collapse center: Interpretation of evidence for late Cenozoic evaporite-related deformation in the Eagle River basin, Colorado
Evaporite tectonism resulted in deformation and collapse over an area of ~2500 km2 that is referred to as the Eagle collapse center. The collapse center includes much of the Eagle and Colorado River drainage basins between Vail, Dotsero, and McCoy, Colorado. The volume loss of evaporitic rocks by dissolution in the collapse center is estimated to be nearly 1700 km33 . Before ca. 10 Ma...
Authors
David Lidke, Mark R. Hudson, R. Scott, Ralph Shroba, Michael Kunk, W. Perry, R. M. Kirkham, James Budahn, R. Streufert, J.O. Stanley, B.L. Widmann