Data release for Geologic Map of the Homestake Reservoir 7.5' quadrangle, Lake, Pitkin, and Eagle Counties, Colorado

The Homestake Reservoir 7.5' quadrangle lies at the northwestern end of the Upper Arkansas Valley, and headwaters of the Arkansas River, and the Roaring Fork, Fryingpan, and Eagle Rivers of the Colorado River system. The quadrangle lies within tectonic provinces of the 1.4 Ga Picuris Orogeny, the late Paleozoic Ancestral Rockies, Late Cretaceous-Paleocene Laramide orogeny, Oligocene to Miocene, and Pliocene?, volcanism, and Miocene to the present Rio Grande rift extensional tectonics. In the eastern half of the quadrangle, high-angle, east-dipping, Neogene normal faults displace Proterozoic rocks, and locally Mio-Pliocene? volcanic rocks. Many quartz veins and hydrothermally altered zones are exposed along the eastern...

Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: 10Be, 26Al, 10th Mountain Division Hut, Bald Eagle Mountain, Bear Lake, Brady Lake, All tags... Bull Lake glaciation, Busk Creek, Camp Hale, Carlton Tunnel, Colorado, Colorado River, Eagle County, Eagle River, Economic Geology, Galena Lake, Galena Mountain, Geomorphology, Glaciology, Hagerman Pass, Hagerman Tunnel, Homestake Creek, Homestake Peak, Homestake Reservoir, Homestake shear zone, Hydrology, Isolation Lake, Lake County, Lake Esther, Laramide, Leadville, Leadville Mining District, Leadville Quadrangle, Lincoln Porphyry, Longs Gulch, Mill Creek, Mineral Resources, Miocene volcanics, Mount Massive Wilderness, Mount of the Holy Cross Wilderness, Oligocene volcanics, Paradise Lakes, Pinedale Glaciation, Pitkin County, Pliocene volcanics, Porcupine Gulch, Rio Grande rift, San Isabel National Forest, Sawatch Range, Sawatch anticlinorium, Slide Lake, Soil Sciences, Sopris Creek, South Park, St. Kevin Granite, St. Kevin Mining District, Structural Geology, Tennessee Creek, Tennessee Park, Tennessee Pass, Timberline Lake, Turquoise Lake, USA, USGS Science Data Catalog (SDC), Uncle Bud’s Cabin, United States, Upper Arkansas River, Upper Arkansas Valley, Water Resources, White River National Forest, cosmogenic nuclide, landslides, metalamprophyre, neotectonics, pre-Bull Lake glaciation, pseudotachylite, sakungen, Fewer tags

Liberty Bell area, western Bonnifield mining district, electromagnetic and magnetic airborne geophysical survey, data compilation

This publication, GPR 2017-1, provides geophysical data produced from an airborne geophysical survey conducted in 2001 and released in 2002 for 276 sq miles of the Liberty Bell area, western Bonnifield mining district, central Alaska. Aeromagnetic and electromagnetic data were acquired during the survey. During 2016, the same digital data were reformatted for ease of use with modern processing tools; vector shapefiles and the analytic signal and calculated first vertical derivative grids were added. Other than the creation of calculated grids, no new processing was done. Data provided in GPR 2017-1 include processed (1) linedata ASCII databases, (2) gridded files of magnetic and resistivity data, (3) vector files...

Tags: Aeromagnetic, Aeromagnetic Data, Aeromagnetic Map, Aeromagnetic Survey, Airborne Geophysical Survey, All tags... Alaska, State of, Apparent Resistivity Data, Apparent Resistivity Map, Apparent Resistivity Survey, Bonanza Creek, Bonnifield Mining District, Buzzard Creek, California Creek, Chicken Creek, Coal Creek, Cody Creek, DIGHEM-V EM System, Daniels Creek, Digital Elevation Model, Eagle Creek, Electromagnetic Anomalies, Electromagnetic Data, Electromagnetic Survey, Elsie Creek, Emma Creek, Eva Creek, Fairbanks Quadrangle, First Vertical Derivative, Fourth of July Creek, Geophysical Map, Geophysical Survey, Geophysics, Geophysics Search Tag, Homestake Creek, Iron Creek, Liberty Bell Mine, Little Moose Creek, Lynx Creek, Magnetics, Marguerite Creek, McAdam Creek, Resistivity, Resistivity Survey, Rex Creek, Rex Dome, Saint Charles Creek, Spruce Creek, Steep Creek, Wilson Creek, Winter Creek, geoscientificInformation, Fewer tags