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Data for a Comprehensive Survey of Fault Zones, Breccias, and Fractures in and Flanking the Eastern Española Basin, Rio Grande Rift, New Mexico This release provides the data for a comprehensive survey of geologic structures in the eastern Española Basin of the Rio Grande rift, New Mexico. The release includes data and analyses from 53 individual fault zones and 22 other brittle structures, such as breccia zones, joints, and veins, investigated at a total of just over 100 sites. Structures were examined and compared from poorly lithified Tertiary sediments, as well as Paleozoic sedimentary and Proterozoic crystalline rocks. Data and analyses, include geologic maps; field observations and measurements; orientation, kinematic paleostress analyses and modeling; statistical examination of 575 fault trace lengths derived from aeromagnetic data in the Española... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CGGSC, Crustal Geophysics and Geochemistry Science Center, Deformation (geologic), Faulting (geologic), Fracture (geologic), All tags... GECSC, Geochemistry, Geologic structure, Geological Survey National Cooperative Geologic Mapping Program, Geology, Geophysics, Geosciences and Environmental Change Science Center, Laramide orogeny, MRP, Mineral Resources Program, Mineralogy, Mineralogy, NCGMP, New Mexico, Rio Grande rift, Santa Fe, Santa Fe County, Structural geology, Tectonic processes, USGS Science Data Catalog (SDC), Water Resources, X-ray diffraction, breccias, fault geochemistry, fault kinematics, fault length, fault rocks, fault structure, geoscientificInformation, impactites, Fewer tags Magnetotelluric sounding locations, stations 23 to 46, San Luis Valley, Colorado, 2007 This dataset includes the magnetotelluric (MT) sounding data collected in 2007 in and near the San Luis Valley, Colorado. The U.S. Geological Survey conducted a series of multidisciplinary studies, including MT surveys, in the San Luis Valley to improve understanding of the hydrogeology of the Santa Fe Group and the nature of the sedimentary deposits comprising the principal groundwater aquifers of the Rio Grande rift. The shallow unconfined and the deeper confined Santa Fe Group aquifers in the San Luis Basin are the main sources of municipal water for the region. The population of the San Luis Valley region is growing rapidly and water shortfalls could have serious consequences. Future growth and land management... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alamosa County, Baca National Wildlife Refuge, CGGSC, Colorado, Conejos County, All tags... Costilla County, Crustal Geophysics and Geochemistry Science Center, Electromagnetic surveying, GPS measurement, Geophysics, Great Sand Dunes National Park, MRP, MT, Magnetic field (earth), Magnetic surveying, Mineral Resources Program, New Mexico, Rio Grande rift, Rocky Mountains, Saguache County, San Luis Basin, San Luis Valley, Sandoval County, Santa Fe County, USGS Science Data Catalog (SDC), apparent resistivity, aquifer, geoscientificinformation, groundwater, hydrogeology, impedance, impedance phase, impedance strike, magnetotelluric, sounding, tipper, Fewer tags