Data release for Geologic Map of the Poncha Pass Area, Chaffee, Fremont, and Saguache Counties, Colorado

This release presents the GIS data (in GDB, shapefile, and e00 [coverage] formats) and metadata for a 1:24,000-scale geologic map of the Poncha Pass area in central Colorado. A cartographic version of the geologic map, including map unit descriptions, interpretative text, and accessory figures and tables, is being separately published as a U.S. Geological Survey Scientific Investigations Map (SIM). The map area is irregular in shape, covering all of one 7.5' quadrangle (Poncha Pass) and parts of five others (Mount Ouray, Maysville, Salida West, Salida East, and Wellsville). The map boundaries were drawn to cover all of the "Poncha mountain block", coincident with the approximately 15-kilometer-long northwestern...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 40Ar/39Ar age, Arkansas River, Bear Creek, Bonanza Tuff, Bull Lake glaciation, All tags... Chaffee County, Cleveland Mountain, Clover Creek, Colorado, Conejos Formation, Droz Creek, Dry Union Formation, Fremont County, Geomorphology, Laramide orogeny, Little Cochetopa Creek, Mears Junction, Methodist Mountain, Mineral Resources, Mount Ouray, Murphys Hole, O’Haver Lake, Pinedale Glaciation, Poncha Creek, Poncha Mountain, Poncha Pass, Poncha Springs, Rio Grande rift, Round Hill, Saguache County, Salida, San Luis Creek, San Luis Valley, Sand Gulch, Sangre de Cristo Mountains, Sawatch Range, Silver Creek, Simmons Peak, South Arkansas River, Stratigraphy, Structural Geology, U-Pb age, USA, USGS Science Data Catalog (SDC), United States, Upper Arkansas Valley, Volcanology, basement rocks, basin-fill deposits, dike, fault slip, intrusive rocks, metamorphic rocks, mountain block, normal fault, oblique-slip fault, pre-Bull Lake glaciation, range-front fault, reverse fault, sedimentary rocks, sill, strike slip, surficial deposits, uplift, volcanic rocks, Fewer tags

Digital Data from Mineral Investigation of Sangre de Cristo Wilderness Study Area, Alamosa, Custer, Fremont, Huerfano, and Saguache Counties, Colorado, USA

This Data Release provides tabular and geospatial data digitized by the U.S. Geological Survey (USGS) from a U.S. Bureau of Mines (USBoM) report titled Mineral Investigation of Sangre de Cristo Wilderness Study Area, Alamosa, Custer, Fremont, Huerfano, and Saguache Counties, Colorado. The original preliminary paper report, numbered Mineral Land Assessment 65-83 (MLA 65-83; Ellis and others, 1983), presented the results of a mineral resource potential survey of areas in and around the Sangre de Cristo Range flanking the northeastern extent of San Luis Valley in south-central Colorado. Included in this Data Release are georeferenced scans of the regional plate maps, digitized sample site locations, analytical...

Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alamosa County, Alamosa County, Baca National Wildlife Refuge, Blanca Peak, Cañon City, All tags... Colorado, Colorado, Costilla County, Costilla County, Crestone, Crestone Needle, Crestone Peak, Custer County, Custer County, Duncan, Economic Geology, Fremont County, Fremont County, GGGSC, GIS and Information Management Project, Geochemistry, Geology, Geophysics, and Geochemistry Science Center, Geomorphology, Great Sand Dunes National Park and Preserve, Great Sand Dunes National Park and Preserve, Great Sand Dunes National Preserve, Gunnison National Forest, Hayden Pass, Hermit Pass, Huerfano Conty, Huerfano County, Huerfano County, Humboldt Peak, Kit Carson Mountain, La Veta Pass, Liberty, MLA 65-83, MRP, Medano Pass, Mineral Land Assessment, Mineral Land Assessment 65-83, Mineral Resources, Mineral Resources Program, Mining claim, Mosca Pass, Music Pass, Poncha Pass, Prospecting, Rio Grande National Forest, Rio Grande Rift, Rita Alta copper mine, Saguache County, Saguache County, Salida, San Isabel National Forest, San Luis Valley, San Luis Valley, Sangre de Cristo Mountains, Sangre de Cristo Range, Sangre de Cristo Range, Sangre de Cristo Wilderness, Sangre de Cristo Wilderness, Silver Cliff, Structural geology, U.S. Bureau of Mines, U.S. Bureau of Mines, U.S. Geological Survey, U.S. Geological Survey, USBoM, USGS, USGS Science Data Catalog (SDC), Westcliffe, Wet Mountain Valley, Wilderness, Wilderness Study Area, abandoned mines and quarries, atomic absorption analysis, chemical analysis, colorimetry, copper, fire assay, fluorimetry, geologic maps, geologic structure, geoscientificInformation, geospatial datasets, gold, lead, mass spectroscopy, mine adit, mine dump, mine shaft, mine stockpile, mineral resources, mineralized outcrop, mineralogy, molybdenum, ore formation, petrology, prospect pit, quarry, sample sites, silver, tectonic processes, tungsten, uranium, Fewer tags

U-Pb zircon data for: The Poncha Pass and Deadman Creek areas, northern Sangre de Cristo Mountains of south-central Colorado

Geologic mapping, characterization of geologic structures, and sampling for geochronology was completed in two areas of the northwestern Sangre de Cristo Mountains from 2011 through 2017. This data release provides the raw analytical data, metadata and sample information for 20 zircon U-Pb age analyses from laser ablation-inductively coupled plasma mass spectrometry (LA-ICPMS). The two areas include the Poncha Pass area where the entire 71/2’ Poncha Pass quadrangle and parts of five other quadrangles (Mount Ouray, Maysville, Salida West, Salida East, and Wellsville) were mapped at a scale of 1:24,000 (see Minor and others, 2019). The Deadman thrust fault is the second area, approximately 80 km southwest of the Poncha...

Categories: Data; Tags: Colorado, Deadman Thrust Fault, Detrital Zircon, GGG, Geochemistry, All tags... Geochronology, Geology, Geophysics, and Geochemistry Science Center, Igneous Zircon, LA-ICPMS, Laramide orogeny, Laser-Ablation Inductively-Coupled Plasma Mass Spectrometry, Maysville, Mount Ouray, Poncha Pass, Poncha Springs, Radiometric Dating, Rio Grande rift, Salida, Salida East, Salida West, Sangre de Cristo Mountains, Structural Geology, Structural Geology, U-Pb, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Uranium-Lead, Wellsville, Fewer tags