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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Downloadable (2) Map Service (2) OGC WFS Layer (2) OGC WMS Layer (2) Shapefile (2) Citation (1) OGC WMS Service (1) Contacts Bradley S Van Gosen Anne E. McCafferty Geology, Geophysics, and Geochemistry Science Center U.S. Geological Survey - ScienceBase Energy and Minerals U.S. Geological Survey U.S. Geological Survey Categories Data (2) Tag Types Theme (2) Place (2) USGS Scientific Topic Keyword (1) Harvest Set (2) Tag Schemes none (2) Geographic Names Information System (GNIS) (2) USGS Thesaurus (2) Common Geographic Areas (1) ISO 19115 Topic Category (2) USGS Metadata Identifier (1) View Results as: JSON ATOM CSV

Whole-rock geochemical data for alkaline intrusive rocks in the Wet Mountains area of Custer and Fremont Counties, south-central Colorado, USA This data release contains the whole-rock major and trace element analyses of 51 samples of intrusive igneous rocks from the Wet Mountains area of Custer and Fremont counties of south-central Colorado, collected by U.S. Geological Survey (USGS) geologists. The samples were collected from breccias, veins and thin dikes, and a variety of carbonatite, felsic, mafic, and ultramafic intrusions across the area. The first 41 samples listed in this data release were collected in July 2007, originally as part of a reconnaissance study of the thorium deposits of the area (Van Gosen and others, 2009). The samples are grab samples from outcrops, shallow open-pit excavations, and mineral prospect trenches. The last 10 samples... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Colorado, Custer County, DOI, Democrat Creek, Department of the Interior, All tags... Economic Geology, Energy and Minerals Mission Area, Fremont County, GGGSC, Gem Park, Geochemistry, Geology, Geophysics, and Geochemistry Science Center, ICP-AES, ICP-MS, Inductively Coupled Plasma-Atomic Emission Spectrometry, Inductively Coupled Plasma-Mass Spectrometry, Iron Mountain, MRP, McClure Mountain, Mineral Resources, Mineral Resources Program, Region 7: Upper Colorado Basin, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), USGS:5e7130b3e4b01d50926823f3, United States of America, WDXRF, Wavelength Dispersive X-Ray Fluorescence Spectrometry, Wet Mountains, data release, economic geology, geochemistry, geology, geoscientificinformation, mass spectroscopy, metallic mineral resources, mineral resources, rare earth elements, south-central Colorado, thorium, Fewer tags Airborne magnetic and radiometric survey, Ironton, Missouri area This publication provides digital flight line data for a high-resolution horizontal magnetic gradient and radiometric survey over the Ironton, Missouri area of southeast Missouri. Data were collected using a fixed wing aircraft with magnetometers mounted in the tail stinger and each wing tip pod and a fully calibrated gamma ray spectrometer. The survey operated out of the Farmington, Missouri airport during January to mid-February of 2016. The survey covers an irregularly shaped region within a 54 x 53 square-kilometer area centered on the town of Ironton, Missouri. Data were collected along north-south flight lines spaced 300 meters (m) apart with east-west tie lines flown every 3000 m. A mean terrain clearance... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: CGGSC, Cedar Hill, Crustal Geophysics and Geochemistry Science Center, Iron Mountain, Ironton, All tags... MRP, Mineral Resources Program, Missouri, Pilot Knob, Shepard Mountain, USGS Science Data Catalog (SDC), aeromagnetic surveying, aeroradiometric surveying, geophysics, geoscientificInformation, geospatial datasets, magnetic field (earth), magnetic surveying, Fewer tags