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Data Release of Geochemical, Geochronologic, and Isotopic Data for Precambrian to Cenozoic Rocks from Colorado, New Mexico, Utah, and Wyoming This U.S. Geological Survey (USGS) data release includes whole rock geochemical and isotopic data, and uranium-lead isotopic data collected by both Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Sensitive High Resolution Ion Microprobe-Reverse Geometry (SHRIMP-RG) methods for rocks in Colorado, Wyoming, Utah, and New Mexico. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Colorado, Geochemistry, National Cooperative Mapping Program, New Mexico, USGS Science Data Catalog (SDC), All tags... Utah, Wyoming, chemical analysis, geochemistry, geochronology, geoscientificInformation, igneous rocks, isotope geochemistry, metamorphic rocks, Fewer tags Zircon U-Pb data for Proterozoic rocks in southwestern Colorado and rocks from drill core from Wyoming, Montana, and Nebraska This U.S. Geological Survey (USGS) data release provides U-Pb zircon data and geochronology for Proterozoic rocks in the Needle Mountains of southwestern Colorado and for Proterozoic rocks sampled from drill cores from Wyoming, Montana, and Nebraska. Samples from the Needle Mountains were collected in order to constrain the polyphase tectonic evolution of the area. Drill core samples are part of a larger characterization of the age and geochemical character of basement terranes in the United States. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Colorado, GECSC, GGGSC, Geochemistry, Geologic Framework of the Intermountain West, All tags... Geology Geophysics and Geochemistry Science Center, Geosciences and Environmental Change Science Center, LA-ICP-MS, Montana, NCGMP, Nebraska, Precambrian basement terranes, U-Pb geochronology, US Geological Survey, USGS Science Data Catalog (SDC), Wyoming, geoscientificInformation, Fewer tags Data release of geochemistry and geochronology for Proterozoic rocks in southwestern Colorado and rocks from drill core from Colorado, North Dakota, Nevada, Wyoming, Montana, and Nebraska This U.S. Geological Survey (USGS) data release provides whole rock major, minor, and trace element geochemical data, mineral chemistry, and monazite and xenotime geochronology for Proterozoic rocks in the Needle Mountains of southwestern Colorado and for Proterozoic rocks sampled from drill cores from Colorado, North Dakota, Nevada, Wyoming, Montana, and Nebraska. Samples from the Needle Mountains were collected in order to constrain the polyphase tectonic evolution of the area. Additionally, multi-scale compositional mapping, petrologic modeling and in-situ geochronology constrain the pressure-temperature-time paths from basement gneisses and quartzites. Drill core samples are part of a larger characterization... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Colorado, Geochemistry, Montana, Nebraska, Nevada, All tags... North Dakota, USGS Science Data Catalog (SDC), Wyoming, chemical analysis, geochemistry, geochronology, geoscientificInformation, igneous rocks, metamorphic rocks, Fewer tags