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 approach to serving geologic map data synthesizes new and existing geologic mapping into a spatially consistent geologic framework, preserves source metadata, and improves the queryability of map unit information. The stratigraphic framework that underpins the geologic mapping is constructed dynamically using a process-based, time-dependent, hierarchical classification of map units. This data set can be integrated with users’ data via GIS hosted feature layers or can be viewed using the Intermountain West Geologic Map Explorer .
Research groups within this project investigate the magmatic, tectonic, stratigraphic, and landscape evolution of the Intermountain West through targeted studies of geologic processes.
The Intermountain West Seamless Geologic Map Explorer is now live!
The USGS Geochron Database Explorer is now live!
Digital subsurface data of Paleozoic rocks in the Upper Colorado River Basin in Wyoming, Utah, Colorado, Arizona, and New Mexico from USGS Regional Aquifer System Analysis
Digital subsurface data of Mesozoic rocks in the Upper Colorado River Basin in Wyoming, Utah, Colorado, Arizona, and New Mexico from USGS Regional Aquifer System Analysis
Data release for Geologic Map of the Homestake Reservoir 7.5' quadrangle, Lake, Pitkin, and Eagle Counties, Colorado
Data Release for Geologic Map of Petroglyph National Monument and Vicinity, Bernalillo County, New Mexico
Digital data for three-dimensional geologic framework model of the Rio San Jose groundwater basin, New Mexico
Data release for Middle Pleistocene formation of the Rio Grande Gorge, San Luis Valley, south-central Colorado and north-central New Mexico, USA: Process, timing, and downstream implications
Argon geochronology data for La Garita caldera
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
Argon data for Poncha Pass Geologic Map
Below are publications associated with the Geologic Framework of the Intermountain West Project.
Postcaldera intrusive magmatism at the Platoro caldera complex, Southern Rocky Mountain volcanic field, Colorado, USA
Beach placer mineral deposits along localized paleoshorelines of the western Interior Seaway, upper cretaceous Fox Hills sandstone, eastern Denver Basin, Colorado
The grass is not always greener on the other side: Seasonal reversal of vegetation greenness in aspect-driven semiarid ecosystems
Timing of Cenozoic extension in the southern Stillwater Range and Dixie Valley, Nevada
Dilution and propagation of provenance trends in sand and mud: Geochemistry and detrital zircon geochronology of modern sediment from central California (U.S.A.)
A new stratigraphic framework and constraints for the position of the Paleocene-Eocene boundary in the rapidly subsiding Hanna Basin, Wyoming
Testing hypotheses on signatures of precipitation variability in the river and floodplain deposits of the Paleogene San Juan Basin, New Mexico, USA
Orogenic recycling of detrital zircons characterizes age distributions of North American Cordilleran strata
Protracted multipulse emplacement of a post-resurgent pluton: The case of Platoro caldera complex (Southern Rocky Mountain volcanic field, Colorado)
Plant and insect herbivore community variation across the Paleocene–Eocene boundary in the Hanna Basin, southeastern Wyoming
Middle Pleistocene formation of the Rio Grande Gorge, San Luis Valley, south-central Colorado and north-central New Mexico, USA: Process, timing, and downstream implications
A stratigraphic approach to inferring depositional ages from detrital geochronology data
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 approach to serving geologic map data synthesizes new and existing geologic mapping into a spatially consistent geologic framework, preserves source metadata, and improves the queryability of map unit information. The stratigraphic framework that underpins the geologic mapping is constructed dynamically using a process-based, time-dependent, hierarchical classification of map units. This data set can be integrated with users’ data via GIS hosted feature layers or can be viewed using the Intermountain West Geologic Map Explorer .
Research groups within this project investigate the magmatic, tectonic, stratigraphic, and landscape evolution of the Intermountain West through targeted studies of geologic processes.
The Intermountain West Seamless Geologic Map Explorer is now live!
The USGS Geochron Database Explorer is now live!
Digital subsurface data of Paleozoic rocks in the Upper Colorado River Basin in Wyoming, Utah, Colorado, Arizona, and New Mexico from USGS Regional Aquifer System Analysis
Digital subsurface data of Mesozoic rocks in the Upper Colorado River Basin in Wyoming, Utah, Colorado, Arizona, and New Mexico from USGS Regional Aquifer System Analysis
Data release for Geologic Map of the Homestake Reservoir 7.5' quadrangle, Lake, Pitkin, and Eagle Counties, Colorado
Data Release for Geologic Map of Petroglyph National Monument and Vicinity, Bernalillo County, New Mexico
Digital data for three-dimensional geologic framework model of the Rio San Jose groundwater basin, New Mexico
Data release for Middle Pleistocene formation of the Rio Grande Gorge, San Luis Valley, south-central Colorado and north-central New Mexico, USA: Process, timing, and downstream implications
Argon geochronology data for La Garita caldera
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
Argon data for Poncha Pass Geologic Map
Below are publications associated with the Geologic Framework of the Intermountain West Project.