Filters: Tags: Powder River Basin (X) > partyWithName: U.S. Geological Survey (X)

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Data Release - Digital subsurface data from previously published contoured maps of the tops of the Mowry Shale, Morrison Formation, and Minnelusa Formation, Powder River basin, Wyoming and Montana This digital data release contains previously published contours on the tops of the Mowry Shale, Morrison Formation, and Minnelusa Formation. The maps are from a series of U.S. Geological Survey Miscellaneous Field Studies (MF) showing computer-generated structure contours, isopachs, and cross sections of selected formations in the Powder River basin, Wyoming and Montana (Crysdale 1990, 1991a, 1991b). The maps were constructed from information stored in a U.S. Geological Survey Evolution of Sedimentary Basins data base. This data base contains picks of geologic formation and (or) unit tops and bases determined from electric resistivity and gamma-ray logs of 8,592 wells penetrating Tertiary and older rocks in the... Categories: Data; Tags: Montana, Powder River basin, Stratigraphy, Structural Geology, USGS Science Data Catalog (SDC), All tags... Wyoming, elevation, geologic structure, geoscientificInformation, structure contours, Fewer tags Thickness and characteristics of overbank sediment deposited during an extreme flood in May 1978 along Powder River, Montana, USA This data release consists of tables with the thickness and particle-size characteristics of overbank sediment deposited in May 1978 along the valley of Powder River in southeastern Montana. About 900 sediment samples were collected at regularly-spaced distances from 20 valley transects along a 90-kilometer reach of Powder River between Moorhead and Broadus, Montana. The decrease in sediment thickness and particle size with distance from the main channel showed weak trends, which were caused by the variability introduced by vegetation sediment traps and subsidiary channels. Categories: Data; Tags: High Plains, Hydrology, Powder River, Powder River Basin, Powder River County, All tags... Sedimentology, USGS Science Data Catalog (SDC), channel, deposition, erosion, flood, geomorphology, hydrology, particle size, sediment, southeastern Montana, vegetation, Fewer tags Digital subsurface database of elevation point data and structure contour maps of multiple subsurface units, Powder River Basin, Wyoming and Montana, USA This digital data release presents subsurface data from multiple geologic units that were part of a previous study of the regional subsurface structural configuration of the Powder River Basin in Wyoming and Montana. The original data within this geodatabase is sourced from an unpublished doctoral dissertation by Jessie Melick at Montana State University (Melick, 2013). Data contained in this release were generated from elevation grids developed by Jessie Melick using 28,000 wells and geophysical well logs penetrating Paleozoic to Mesozoic strata over a 70,000 square-kilometer area designated by the Department of Energy as a realistic locality for geologic carbon sequestration (Melick, 2013). Information included... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bighorn Mountains, Black Hills, Formation Tops, Frontier Formation, GeMS, All tags... Geologic Map Schema, Lakota Formation, Madison Group, Mesaverde Group, Minnelusa Formation, Montana, NCGMP, NCGMP (National Cooperative Geologic Mapping Program), NGS, National Cooperative Geologic Mapping Program, National Geologic Synthesis Project, National Geologic Synthesis Project, Powder River Basin, Precambrian, Structure Contours, Structure Contours, Structure Mapping, Structure Points, Structure Points, Tensleep Formation, US GeoFramework Initiative, US GeoFramework Initiative, USGI, USGI, USGS Science Data Catalog (SDC), Wyoming, geoscientificInformation, Fewer tags Channel Cross-section Data for Powder River between Moorhead and Broadus, Montana from 1975 to 2019 (ver. 3.0, August 2020) This data release will consist of 40 Excel files (one file for each cross section) containing worksheets corresponding to each channel cross-section survey (from 2 to about 40). Worksheets contain the basic survey data (dates, equipment, reference elevations, foresights, distances from reference pins, and elevations). First release: August 21, 2017 (available from author) Revised: November 2, 2018 (ver. 2.0 - available from author) Revised: August 28, 2020 (ver 3.0) Categories: Data; Tags: High Plains, Powder River, Powder River Basin, Powder River County, USGS Science Data Catalog (SDC), All tags... channel, deposition, erosion, flood, geomorphology, hydrology, southeastern Montana, Fewer tags