Surface and subsurface geologic data from previous USGS studies of the Gulf Coast region, south-central United States

This dataset captures in digital form the results of previously published U.S. Geological Survey (USGS) Water Mission Area studies related to water resource assessment of Cenozoic strata and unconsolidated deposits within the Mississippi Embayment and the Gulf Coastal Plain of the south-central United States. The data are from reports published from the late 1980s to the mid-1990s by the Gulf Coast Regional Aquifer-System Analysis (RASA) studies and in 2008 by the Mississippi Embayment Regional Aquifer Study (MERAS). These studies, and the data presented here, describe the geologic and hydrogeologic units of the Mississippi embayment, Texas coastal uplands, and the coastal lowlands aquifer systems, south-central...

Tags: 3D, Alabama, Arkansas, Cane River Formation, Carrizo Sand, All tags... Cenozoic, Claiborne Group, Coastal lowlands aquifer system, Cockfield Formation, Cook Mountain Formation, Eocene, Geography, Jackson Group, Kentucky, Laredo Formation, Louisiana, Lower Claiborne confining unit, Lower Wilcox aquifer, McNairy-Nacatoch aquifer, Memphis Sand, Middle Claiborne aquifer, Middle Claiborne confining unit, Middle Wilcox aquifer, Midway Group, Midway confining unit, Miocene, Mississippi, Mississippi River Valley alluvial aquifer, Mississippi River Valley alluvial aquifer, Mississippi embayment aquifer system, Missouri, NCGMP (National Cooperative Geologic Mapping Program), National Cooperative Geologic Mapping Program, National Geologic Synthesis Project, Oklahoma, Oligocene, Paleocene, Pliocene, Quaternary, Regional Aquifer System Analysis, Sparta Sand, Tennessee, Tertiary, Texas, Texas coastal uplands aquifer system, US GeoFramework Initiative, USGI, USGS Science Data Catalog (SDC), United States GeoFramework Initiative, Upper Claiborne Aquifer, Upper Wilcox aquifer, Vicksburg Group, Wilcox Group, Yegua Formation, alluvial, borehole, elevation, elevation, environment, hydrogeologic, marine shale, sandstone, stratigraphic thickness, structure contours, thickness, three dimensional, Fewer tags

Mississippi Alluvial Plain (MAP): Electrical Resistivity & Facies Classification Grids

Electrical resistivity results from two regional airborne electromagnetic (AEM) surveys (Minsley et al. 2021 and Burton et al. 2021) over the Mississippi Alluvial Plain (MAP) were combined by the U.S. Geological Survey to produce three-dimensional (3D) gridded models and derivative hydrogeologic products. Grids were discretized in the horizontal dimension to align with the 1 kilometer (km) x 1 km National Hydrogeologic Grid (NHG; Clark et al. 2018), and vertically discretized into both 5 meter (m) depth slices and 5 m elevation slices. Ten “facies classes” were defined to categorize materials expected to have similar hydrologic and geologic properties based on their electrical resistivity (i.e. low classes correspond...

Tags: 3D, Arkansas, Arkansas River, GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Illinois, Louisiana, MRVA, Mississippi, Mississippi Alluvial Plain, Mississippi River, Mississippi River Valley Alluvial aquifer, Missouri, Tennessee, U.S. Geological Survey, USGS, WAUSP, Water Availability and Use Science Program, electromagnetic surveying, electromagnetics, engineering sciences, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, hydrogeology, resistivity, three-dimensional, water resources, Fewer tags

Combined results and derivative products of hydrogeologic structure and properties from airborne electromagnetic surveys in the Mississippi Alluvial Plain

Electrical resistivity results from two regional airborne electromagnetic (AEM) surveys (Minsley et al. 2021 and Burton et al. 2021) over the Mississippi Alluvial Plain (MAP) were combined by the U.S. Geological Survey to produce three-dimensional (3D) gridded models and derivative hydrogeologic products. Grids were discretized in the horizontal dimension to align with the 1 kilometer (km) x 1 km National Hydrogeologic Grid (NHG; Clark et al. 2018), and vertically discretized into both 5 meter (m) depth slices and 5 m elevation slices. To support hydrogeologic and geologic studies within the MAP region and the Mississippi River Valley Alluvial aquifer (MRVA), derivative products were calculated from the 3D resistivity...

Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: 3D, Arkansas, Arkansas River, GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Illinois, Louisiana, MRVA, Mississippi, Mississippi Alluvial Plain, Mississippi River, Mississippi River Valley Alluvial aquifer, Missouri, Tennessee, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), WAUSP, Water Availability and Use Science Program, electromagnetic surveying, electromagnetics, engineering sciences, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, hydrogeology, resistivity, three-dimensional, water resources, Fewer tags

Digital hydrogeologic framework model of the Upper Colorado River Basin, western U.S.

This digital dataset was created as part of a U.S. Geological Survey hydrologic resource assessment and development of an integrated numerical hydrologic model of the hydrologic system of the Upper Colorado River Basin, an extensive region covering approximately 412,000 square kilometers in five states: Wyoming, Colorado, Utah, Arizona, and New Mexico. As part of this larger study, the USGS developed this digital dataset of geologic data and a three-dimensional hydrogeologic framework model (3D HFM) that define the elevation, thickness, and extent of seven hydrogeologic units in the Upper Colorado River Basin. The hydrogeologic setting of the Colorado Plateau consists of thick Paleozoic, Mesozoic, and Cenozoic aquifers,...

Tags: 3D, Arizona, Chinle Formation, Colorado, Colorado Plateau, All tags... Colorado Plateaus aquifers (COPL), Cretaceous, Curtis Member of Stump Formation, Cutler Formation, Dakota Sandstone, Entrada Sandstone, Glen Canyon Group, Glorieta Member of San Andres Formation, Green River Basin, Green River Formation, Hydrology, Jurassic, Kaibab Limestone, Mancos Shale, Mesaverde Group, Mesozoic, Mississippian, Moenkopi Formation, Morrison Formation, NCGMP, NCGMP (National Cooperative Geologic Mapping Program), National Geologic Synthesis Project, National Water Census Initiative, Navajo Sandstone, New Mexico, Nugget Sandstone, Paleozoic, Paradox Basin, Paradox Formation, Pennsylvanian, Permian, Piceance Basin, Precambrian, Preuss Redbeds, Preuss Sandstone, Quaternary, Regional Aquifer System Analysis, San Andres-Glorieta aquifer, San Juan Basin, San Rafael Group, Stratigraphy, Tertiary, Triassic, US GeoFramework Initiative, USGI, USGS Science Data Catalog (SDC), Uinta Basin, Uncompahgre Formation, United States GeoFramework Initiative, Upper Colorado River Basin, Utah, Wasatch Formation, Water Resources, Wyoming, alluvial, cross section, elevation, elevation, fault, geoscientificInformation, hydrogeologic, marine shale, oil and gas well, sandstone, stratigraphic thickness, structure contours, thickness, three dimensional, volcanic, Fewer tags

Digital data from previous USGS hydrogeologic studies of the Cambrian-Ordovician aquifer system in the northern Midwest, United States

This dataset captures in digital form previously published maps showing the inferred extent and subsurface elevation of several Paleozoic consolidated rock units in the northern Midwest of the United States. Data released here were published as figures within a U.S. Geological Survey (USGS) Water Mission Area report documenting results from a study of the regional hydrogeology and ground-water quality of the Cambrian-Ordovician aquifer system in the northern Midwest. This study was part of the USGS national Regional Aquifer-System Analysis (RASA) Program. Sandstone and carbonate rocks of Cambrian and Ordovician age compose much of the sedimentary rocks overlying the Precambrian basement in the northern Midwest and...

Tags: 3D, Bonneterre Formation, Cambrian, Cotter Dolomite, Derby-Doerun Dolomite, All tags... Devonian, Eau Claire Formation, Franconia Formation, Galena Dolomite, Galesville Sandstone, Illinois, Iowa, Ironton Sandstone, Kimmswick Formation, Lamotte Sandstone, Maquoketa Shale, Michigan, Midwest, Minnesota, Mississippian, Mount Simon Sandstone, NCGMP, National Cooperative Geologic Mapping Program, National Geologic Synthesis Project, Ordovician, Pennsylvanian, Potosi Dolomite, Powell Dolomite, Prairie du Chien Group, Precambrian, Regional Aquifer System Analysis, Silurian, St. Lawrence Formation, St. Peter Sandstone, Stratigraphy, US GeoFramework Initiative, USGI, USGS Science Data Catalog (SDC), United States, Upper Paleozoic, Water Resources, Wisconsin, aquifer, aquifer system, elevation, elevation, extent, geologic maps, geologic structure, geoscientificInformation, hydrogeologic, structure contours, three dimensional, Fewer tags

Mississippi Alluvial Plain (MAP): Streambed Properties & Connectivity

Electrical resistivity results from two regional airborne electromagnetic (AEM) surveys (Minsley et al. 2021, and Burton et al. 2021) over the Mississippi Alluvial Plain (MAP) were combined by the U.S. Geological Survey to produce three-dimensional (3D) gridded models and derivative hydrogeologic products. To calculate estimates of streambed properties across the MAP region, e.g. the relative connection potential between streams and the adjacent Mississippi River Valley Alluvial aquiver (MRVA), a new 3D grid of electrical resistivity was generated for 2 meter (m) depth layers and only shallow depths (0-30 m). The horizontal dimension aligns with the 1 kilometer (km) x 1 km National Hydrogeologic Grid (NHG; Clark...

Tags: 3D, Arkansas, Arkansas River, GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Illinois, Louisiana, MRVA, Mississippi, Mississippi Alluvial Plain, Mississippi River, Mississippi River Valley Alluvial aquifer, Missouri, Tennessee, U.S. Geological Survey, USGS, WAUSP, Water Availability and Use Science Program, electromagnetic surveying, electromagnetics, engineering sciences, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, hydrogeology, resistivity, three-dimensional, water resources, Fewer tags