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Filters Contacts (Less) U.S. Geological Survey - ScienceBase U.S. Geological Survey U.S. Geological Survey U.S. Geological Survey - CERSC Data Management Services Project Christopher A. Mason Energy and Minerals Water Resources Central Energy Resources Science Center U.S. Geological Survey - ScienceBase Geology, Geophysics, and Geochemistry Science Center Anne E McCafferty Earth Resources Observation and Science (EROS) Center Core Science Systems USDA Forest Service United States Geological Survey GS ScienceBase Pacific Islands Water Science Center Banu N Bayraktar Kolja Rotzoll Alexander M. Soroka U. S. Geological Survey, Central Energy Resources Team USGS Virginia and West Virginia Water Science Center GS GGGSC DM Team Kurtis Nelson Christopher A Mason LCC Network Data Steward Mineral Resources Program Nevada Water Science Center Energy and Minerals PCMSC Science Data Coordinator Shannon M Meppelink Camille L Stagg Mario A. Guzman Benjamin J Drenth Danielle A Olinger Leah E Morgan James S White Cara A Nadler Cameron M Mercer Jennifer G Savoie David W Smith Great Northern Landscape Conservation Cooperative Luke C Loken Region 1 GIS Coordinator Southern Rockies Landscape Conservation Cooperative Page C Valentine New York Water Science Center Virginia and West Virginia Water Science Center Woods Hole Coastal and Marine Science Center Pacific Coastal and Marine Science Center More... View Results as: JSON ATOM CSV

MODFLOW-NWT Model Used to Evaluate Stream Capture Related to Groundwater Pumping, Lower Humboldt River Basin, Nevada (ver. 1.1, March 2024) A three-dimensional groundwater flow model using MODFLOW-NWT was developed to evaluate historical and potential stream capture in the lower Humboldt River Basin, Nevada. The Humboldt River Basin is the only river basin that is contained entirely within the state of Nevada. The effect of groundwater pumping on the Humboldt River is not well understood. Tools are needed to determine stream capture and manage groundwater pumping in the Humboldt River Basin. Previous work has demonstrated that the river’s surface-water resource is sensitive to groundwater withdrawals, which have steadily increased since the 1950s for agriculture, municipal, and mining uses. A numerical groundwater flow model was developed for the purpose... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Capture, Groundwater Model, Humboldt River Basin watershed, Hydrology, InlandWaters, All tags... Lovelock, MODFLOW-NWT, Nevada, Pershing County, Stream Capture, Streamflow Depletion, USGS Science Data Catalog (SDC), Water Resources, environment, geoscientificInformation, groundwater, inlandWaters, lower Humboldt River Basin aquifer system, usgsgroundwatermodel, Fewer tags [Geophysical Data] Depth to Moho GeoTIFF grids for the United States, Canada, and Australia The Mohorovicic discontinuity or 'Moho' maps the boundary between the earth's crust and mantle and is defined by an abrupt change in seismic velocity due to changes in the density of rocks between the crust and mantle. GeoTIFF grids that map depth to Moho (crustal thickness) for the United States and Canada, and for Australia are provided in this report and were used as evidential layers in developing prospectivity models for basin-hosted Pb-Zn mineralization (Lawley and others, 2022). A composite grid of Moho depths across the United States and Canada was created using data from Shen and Ritzwoller (2016) for the conterminous United States, from Zhang and others (2019) for Alaska, and from Schetselaar and Snyder... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Australia, CMMI, Canada, Critical Minerals Mapping Initiative, Exploring for the Future Program, All tags... GA, GGGSC, GSC, Geological Survey of Canada, Geology, Geophysics, and Geochemistry Science Center, Geoscience Australia, MRP, Mineral Resources Program, Moho, Mohorovičić discontinuity, TGI, Targeted Geoscience Initiative, U.S. Geological Survey, USGS, United States, critical minerals, crustal structure, crustal thickness, depth to Moho, geophysics, geoscientificInformation, lead, magnetic field (earth), mantle, mantle (earth), maps and atlases, metallic mineral resources, mineral resources, zinc, Fewer tags USGS National Assessment of Oil and Gas Project - Unconventional Assessment Units from 2000 to 2011 The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations sharing similar geologic, geographic, and temporal properties within the Total Petroleum System, such as source rock, timing, migration pathways, trapping mechanism, and hydrocarbon type. The Assessment Unit boundary is defined geologically as the limits of the geologic... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Assessment Unit, Continuous Assessment Unit, Earth Science, Economic geology, Energy Resources, All tags... Geology, NOGA2000, National Assessment of Oil and Gas, Natural Gas, Natural Resources, Natural gas resources, Oil, Oil resources, OilGas, Resource Assessment, U.S. Geological Survey, U.S.A., USGS, USGS Science Data Catalog (SDC), USGS World Energy Region 5, USGS World Energy Region 5, Unconventional Assessment Unit, United States, geoscientificInformation, Fewer tags GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow This dataset, termed "GAGES II", an acronym for Geospatial Attributes of Gages for Evaluating Streamflow, version II, provides geospatial data and classifications for 9,322 stream gages maintained by the U.S. Geological Survey (USGS). It is an update to the original GAGES, which was published as a Data Paper on the journal Ecology's website (Falcone and others, 2010b) in 2010. The GAGES II dataset consists of gages which have had either 20+ complete years (not necessarily continuous) of discharge record since 1950, or are currently active, as of water year 2009, and whose watersheds lie within the United States, including Alaska, Hawaii, and Puerto Rico. Reference gages were identified based on indicators that they... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Alaska, All 50 states, Arizona, Arkansas, All tags... California, Colorado, Connecticut, Delaware, District of Columbia, Florida, GAGES, Georgia, HCDN, Hawaii, Hydrological, Hydrology, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, NPLCC, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, North Pacific Landscape Conservation Cooperative, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, USGS, USGS gages, United States, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, hydrologic condition, hydrologic modification, inlandWaters, reference watersheds, streamflow, streamgage network, water resources, Fewer tags Burned Area Reflectance Classification Thematic Burn Severity Mosaic for 2023 (ver. 6.0, January 2024) These data products are preliminary burn severity assessments derived from data obtained from suitable imagery (including Landsat TM, Landsat ETM+, Landsat OLI, Sentinel 2A, and Sentinel 2B). The pre-fire and post-fire subsets included were used to create a differenced Normalized Burn Ratio (dNBR) image. The dNBR image attempts to portray the variation of burn severity within a fire. The severity ratings are influenced by the effects to the canopy. The severity rating is based upon a composite of the severity to the understory (grass, shrub layers), midstory trees and overstory trees. Because there is often a strong correlation between canopy consumption and soil effects, this algorithm works in many cases for Burned... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: BAER, Burn severity, Burned Area Emergency Response, Burned area, Differenced normalized burn ratio, All tags... Fire location, Landsat, Location, Normalized burn ratio, Sentinel, US, United States, Wildfire, Wildland fire, imageryBaseMapsEarthCover, Fewer tags MODFLOW 6 model and ensemble used in the simulation of groundwater flow and land subsidence in the northern part of the Gulf Coast aquifer, 1897-2018 (ver. 2.0, September 2023) The U.S. Geological Survey (USGS), in cooperation with the Harris-Galveston Subsidence District and Fort Bend Subsidence District, constructed a finite-difference numerical groundwater-flow model of the northern Gulf Coast aquifer region for 1897 through 2018 using MODFLOW 6 with the Newton formulation solver to simulate groundwater flow and land-surface subsidence. Model parameter estimation and uncertainty analysis were conducted with PEST++ Iterative Ensemble Smoother software. The simulated results are described in the associated U.S. Geological Survey Professional Paper 1877. The model archive provided in this U.S. Geological Survey data release includes all the necessary files to run the MODFLOW 6 model and... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Fort Bend County, Galveston County, Groundwater Model, Harris County, Houston, All tags... InlandWaters, MODFLOW6, Montgomery County, PEST++, Python, Soil Water Balance, Texas, USGS Science Data Catalog (SDC), groundwater, groundwater flow, modeling, subsidence, usgsgroundwatermodel, Fewer tags MODFLOW-2005 and SWI2 models for assessing groundwater and surface-water interactions in the Heeia Watershed, Oahu, Hawaii Resource managers and users seek information that can be used to balance the needs of competing uses of groundwater and streamflow in the Heeia watershed, Oahu. A previously constructed steady-state numerical groundwater-flow model for the island of Oahu, Hawaii (https://doi.org/10.3133/sir20205126) using MODFLOW-2005 with the Seawater Intrusion (SWI2) package was used to examine the effects of withdrawals in the watershed. Four simulations representing a baseline and various withdrawal conditions were run using the previously published numerical model. The baseline simulation represents conditions in 2001-10 which were used to calibrate the Oahu model and to which all other scenarios are compared. The three scenarios... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Groundwater Model, Hawaiian Islands, Hydrology, MODFLOW-2005, Oahu, All tags... SWI2, USGS Science Data Catalog (SDC), Water Resources, environment, geoscientificInformation, groundwater, groundwater and surface-water interaction, groundwater discharge to ocean, groundwater flow, inlandWaters, saltwater intrusion, usgsgroundwatermodel, Fewer tags Seepage site data for the upper Humboldt River Basin, October 2008 and November 2009 This dataset consists of points representing seepage site locations and discharge measurements as published in appendices 1-3 of the 2013 publication: Plume, R.W., and Smith, J.L., 2013, Properties of basin-fill deposits, a 1971–2000 water budget, and surface-water-groundwater interactions in the upper Humboldt River basin, northeastern Nevada: U.S. Geological Survey Scientific Investigations Report 2013-5077, https://doi.org/10.3133/sir20135077. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Dixie Creek Area-Tenmile Creek Area, Elko Segment, Great Basin, Humboldt River Basin, Humboldt River Region, All tags... Huntington Valley, Lamoille Valley, Marys River Area, Nevada, North Fork Area, South Fork Area, Starr Valley, hydrology, inlandWaters, stream discharge, surface water (non-marine), Fewer tags HUC12-Monthly Summaries This data release contains historical SnowModel (Liston and Elder, 2006) output for the Crown of the Continent and surrounding areas in Montana and Idaho, USA; and Alberta and British Columbia, Canada from September 1, 1981 through August 31, 2020. Fifteen daily variables were simulated or derived for this release: (1) snow water equivalent (swed), (2) liquid precipitation (rpre), (3) solid precipitation (spre), (4) albedo (albd), (5) glacial ice melt (glmt), (6) total precipitation (prec), (7) runoff (roff), (8) snow covered area (sca), (9) snow density (sden), (10) snowmelt (smlt), (11) snow depth (snod), (12) snow sublimation (ssub), (13) air temperature (tair), (14) wind speed (wspd), and (15) wind direction... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alberta, British Columbia, Crown of the Continent, Glacier National Park, Idaho, All tags... Montana, Northern Rocky Mountains, Waterton Lakes National Park, climatologyMeteorologyAtmosphere, precipitation (atmospheric), runoff, snow, snow and ice cover, snowmelt, snowpack, Fewer tags High-resolution multibeam bathymetry and backscatter data collected in 2004 for the northern Channel Islands region, southern California This data release presents data for 5-m resolution multibeam-bathymetry and acoustic-backscatter data of the northern Channel Islands region, southern California. In 2004 the U.S. Geological Survey, Pacific Coastal and Marine Science Center collected multibeam-bathymetry and acoustic-backscatter data in the northern Channel Islands region, southern California. The region was mapped aboard the R/V Ewing using a Kongsberg Simrad EM-1002 multibeam echosounder. These data were previously published on-line at http://pubs.usgs.gov/of/2005/1153/. In this data release the data have been reprocessed to a finer spatial resolution (5-m versus 15-m) using more modern processing techniques. Due to the large file sizes the entire... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Backscatter (sea floor), Bathymetry, Bathymetry, CMG, CMGP, All tags... Channel Islands, Coastal and Marine Geology Program, Geology, Geophysics, Multibeam sonar, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Santa Barbara Channel, Seafloor Topography, State of California, U.S. Geological Survey, USGS, data release, environment, geoscientificInformation, imageryBaseMapsEarthCover, oceans, Fewer tags Chesapeake Bay River Input Monitoring Network 1985-2022: Monthly loads Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring (RIM) Network stations for the period 1985 through 2022. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). The load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the RIM watersheds. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware, Kalman filtering, Maryland, New York, All tags... Pennsylvania, United States, Virginia, WRTDS, WRTDS-Kalman, Washington DC, West Virginia, load analysis, nitrogen, nutrients, phosphorus, rivers, suspended sediment, trends, water quality, weighted regression, Fewer tags Burned Area Reflectance Classification Thematic Burn Severity Mosaic for 2021 (ver. 6.0, January 2024) These data products are preliminary burn severity assessments derived from data obtained from suitable imagery (including Landsat TM, Landsat ETM+, Landsat OLI, Sentinel 2A, and Sentinel 2B). The pre-fire and post-fire subsets included were used to create a differenced Normalized Burn Ratio (dNBR) image. The dNBR image attempts to portray the variation of burn severity within a fire. The severity ratings are influenced by the effects to the canopy. The severity rating is based upon a composite of the severity to the understory (grass, shrub layers), midstory trees and overstory trees. Because there is often a strong correlation between canopy consumption and soil effects, this algorithm works in many cases for Burned... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: BAER, Burn severity, Burned Area Emergency Response, Burned area, Differenced normalized burn ratio, All tags... Fire location, Landsat, Location, Normalized burn ratio, Sentinel, US, United States, Wildfire, Wildland fire, imageryBaseMapsEarthCover, Fewer tags Development of the Alaska Integrated Ecosystem Model to Illustrate Future Landscape Change Ongoing and future climate change throughout Alaska has the potential to affect terrestrial ecosystems and the services that they provide to the people of Alaska and the nation. These services include the gathering of food and fiber by Alaskan communities, the importance of ecosystems to recreation, cultural, and spiritual activities of people in Alaska, and the way that land cover and vegetation in ecosystems affect temperature and water flow (runoff, flooding etc.) throughout the state. Assessments of the effects of climate change on these “ecosystem services” have been hindered by a lack of tools (e.g. computer models) capable of forecasting future landscapes in a changing climate while taking into account numerous... Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2011, Alaska, Alaska, Alaska, Alaska CASC, All tags... CASC, Completed, Data Visualization & Tools, Data Visualization & Tools, Projects by Region, Science Tools for Managers, Science Tools for Managers, border, boundaries, boundary, coastline, countries, country, imageryBaseMapsEarthCover, integrated ecosystem model, Fewer tags Chesapeake Bay River Input Monitoring Network 1985-2022: Annual loads Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring (RIM) Network stations for the period 1985 through 2022. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). The load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the RIM watersheds. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware, Kalman filtering, Maryland, New York, All tags... Pennsylvania, United States, Virginia, WRTDS, WRTDS-Kalman, Washington DC, West Virginia, load analysis, nitrogen, nutrients, phosphorus, rivers, suspended sediment, trends, water quality, weighted regression, Fewer tags Data to support water quality modeling efforts in the Delaware River Basin: 1) Spatial data for rivers, reservoirs, and monitoring locations This data release contains information to support water quality modeling in the Delaware River Basin (DRB). These data support both process-based and machine learning approaches to water quality modeling, including the prediction of stream temperature. This section provides spatial data files that describe the rivers, reservoirs, and observational data in the Delaware River Basin included in this release. One shapefile of polylines describes the 459 river reaches that define the modeling network, and another shapefile of polygons includes the three reservoirs (Pepacton, Cannonsville, and Neversink) for which data are included in this release. Additionally, a point shapefile contains locations of monitoring sites... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: DE, Delaware, MD, Maryland, NJ, All tags... NY, New Jersey, New York, PA, Pennsylvania, US, United States, environment, inlandWaters, modeling, reservoirs, streams, temperature, water, water quality, water resources, Fewer tags 2018 Hydrologic Data Summary for the Central Pine Barrens Region, Suffolk County, New York (ver. 2.0, February 2024) This document provides a summary of surface water-quality, streamflow, and groundwater data collected by the U.S. Geological Survey (USGS) within the Central Pine Barrens (CPB) Region of Suffolk County, New York. The data were collected in cooperation with the Central Pine Barrens Commission and the Town of Brookhaven under a five-year comprehensive water resources monitoring program. The surface water-quality data within the CPB for the 2018 water year (October 1, 2017 to September 30, 2018) includes data from the Carmans River and the Peconic River. The streams were sampled several times throughout the year at seven pre-determined locations. The Carmans River was sampled at five locations: 1) CARMANS RIVER AT... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Carmans River, Central Pine Barrens, Long Island, New York, Peconic River, All tags... Pine Barrens, Suffolk County, USGS Science Data Catalog (SDC), United States, Water Quality, Water Quality, Water Quality, Water Resources, Water-Quailty Modeling, emerging contaminants, environmental health, groundwater quality, river, stream, surface water, surface water quality, water quality, Fewer tags Documentation of VS2DH Seepage Models: Surface Infiltration and Unsaturated Zone Characterization in Support of Managed Aquifer Recharge, Washoe County, Nevada Two-dimensional variably saturated heat and flow models (VS2DH) were used to examine seepage rates along the Birdspring drainage for the purpose of exploring the drainage channel for use in an managed aquifer recharge project. Six transect models were separately calibrated to sediment temperatures observed during episodic runoff events during water year 2017 and 2018. The models were calibrated to unsteady flow conditions, then estimates of seepage losses were made for steady state conditions assuming stage conditions associated with 4 cubic feet per second of imported water. This USGS data release contains all of the input and output files for the simulations described in the associated model documentation report... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bedell Flat Basin, Channel Infiltration, Heat as Tracer, Hydrology, Nevada, All tags... Reno, Seepage rates, Soil Sciences, Transport Model, USGS Science Data Catalog (SDC), USGS groundwater model, VS2DH, Washoe County, Water Resources, environment, geoscientificInformation, inlandWaters, Fewer tags Generalized Geology of the Former Soviet Union (geo1ec) The data set outlines and describes the general geologic age and type of bedrock of the Former Soviet Union and selected adjacent areas. It also includes shoreline and inland water bodies. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Admiralty Arch, Province 1061, Afghan-Tajik Basin, Province 1156, Alakol Basin, Province 1169, Alay Basin, Province 1160, Aldan Shield, Province 1216, All tags... Aldan Uplift, Province 1215, Altay-Sayan Folded Region, Province 1219, Amu-Darya Basin, Province 1154, Anabar Basin, Province 1200, Anabar-Olenek High, Province 1202, Anadyr Basin, Province 1300, Angara-Lena Terrace, Province 1209, Aniva Basin, Province 1327, Anzhu Uplift, Province 1255, Arctic Ocean Slope, Province 1117, Armenia, Ayon Basin, Province 1253, Azerbaijan, Azov-Kuban Basin, Province 1108, Baikal-Patom Folded Region, Province 1230, Baykit Arch, Province 1207, Belorussian-Voronezh High, Province 1004, Black Sea Continental Slope, Province 1107, Black Sea Deep-Water Basin, Province 1102, Blagoveshchensk Basin, Province 1254, Bureya-Dunbey Region, Province 1220, Byelarus, Central Kamchatka Group of Basins, Province 1312, Central Kara High, Province 1070, Central Kazakhstan Folded Region, Province 1168, Central Okhotsk High, Province 1319, Chu-Sarysu Basin, Province 1165, Cis-Patom Foredeep, Province 1211, Cis-Sayan Basin, Province 1208, Commonwealth of Independant States, Crimea High, Province 1104, De Long High, Province 1257, Deryugin Basin, Province 1321, Dnieper-Donets Basin, Province 1009, Dobrogea Foreland, Province 1103, Donbass Foldbelt, Province 1014, Earth Science, East Aral Basin, Province 1151, East Aral Slope, Province 1178, East Ili Basin, Province 1164, East Kamchatka Basin, Province 1315, East Kamchatka Uplift, Province 1313, East Sakhalin Uplift, Province 1323, Economic geology, Estonia, Fergana Basin, Province 1159, Former Soviet Union, Former Soviet Union, Former Soviet Union, Gangut High, Province 1301, Gas, Geologic Province, Geologic map, Geology, Geology, Georgia, Gizhigin Basin, Province 1307, Great Caucasus Foldbelt, Province 1110, Grumant Uplift, Province 1064, Issyk-Kul Basin, Province 1162, Karabogaz-Karakum High, Province 1153, Kazakhstan, Kempendiay Region, Province 1212, Khanka Basin, Province 1226, Khatanga Saddle, Province 1201, Khatyrka Basin, Province 1302, Kinkil Basin, Province 1305, Kola Monocline-Finnmark Platform, Province 1051, Koni-Tayganos Uplift, Province 1308, Kopet-Dag Foldbelt, Province 1155, Koryak-Kamchatka Foldbelt, Province 1304, Kotelnich Arch, Province 1005, Kura Basin, Province 1113, Kuril-Kamchatka Slope, Province 1316, Kuznetsk Basin, Province 1171, Kyrgyzstan, Laptev Shelf, Province 1218, Latvia, Lena-Vilyuy Basin, Province 1214, Lithuania, Ludlov Saddle, Province 1059, Mangyshlak-Ustyurt Foldbelt, Province 1152, Mezen Basin, Province 1006, Middle Amur Basin, Province 1227, Middle Caspian Basin, Province 1109, Moldova, Moma Basin, Province 1252, Moscow Basin, Province 1003, Mugodzhary-South Emba, Province 1018, Naryn Basin, Province 1161, Natural Gas, Natural Resources, Natural gas resources, Nepa-Botuoba Arch, Province 1210, North Barents Basin, Province 1060, North Caspian Basin, Province 1016, North Chukchi Basin, Province 1258, North Crimea Basin, Province 1105, North Minusa Basin, Province 1172, North Novaya Zemlya Basin, Province 1065, North Okhotsk Group of Basins, Province 1309, North Sakhalin Basin, Province 1322, North Ustyurt Basin, Province 1150, Northeast Black Sea Shelf, Province 1106, Novaya Zemlya Monocline, Province 1062, Novosibirsk Basin, Province 1256, Oil, Oil, Oil sand resources, Oil shale resources, Olyutor Basin, Province 1314, Onekotan Basin, Province 1317, Pamir High, Province 1157, Penzhina Basin, Province 1303, Petroleum, Poles Saddle, Province 1012, Pripyat Basin, Province 1010, Resource Assessment, Rioni Basin, Province 1111, Russia, Russia, Russian Craton Margin, Province 1011, Schmidt Basin, Province 1071, Severnaya Zemlya High, Province 1072, Sikhote-Alin Folded Region, Province 1224, South Barents Basin, Province 1050, South Caspian Basin, Province 1112, South Chukchi-Hope Basin, Province 1261, South Kuril Basin, Province 1318, South Minusa Basin, Province 1173, South Okhotsk Basin, Province 1320, South Turgay Basin, Province 1167, St. Anna Basin, Province 1066, Suifun Basin, Province 1225, Susunay Uplift, Province 1326, Syr-Darya Basin, Province 1177, Taimyr-Kara High, Province 1176, Tajikistan, Talov Uplift, Province 1306, Tatar Strait Basin, Province 1328, Terpeniya Bay Basin, Province 1324, Tian Shan Foldbelt, Province 1158, Timan High, Province 1007, Timan-Pechora Basin, Province 1008, Tinro Basin, Province 1310, Tunguska Basin, Province 1203, Turgay Depression, Province 1166, Turkmenistan, Turukhan-Igarka Uplift, Province 1205, Turukhan-Norilsk Folded Zone, Province 1204, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Uedineniya Basin, Province 1069, Ukraine, Ukrainian Shield, Province 1013, Upper Bureya Basin, Province 1223, Upper Zeya Basin, Province 1217, Ural-Novaya Zemlya Foldbelt, Province 1017, Ushakov High, Province 1068, Uzbekistan, Verkhoyan-Chukotka Folded Region, Province 1250, Vize High, Province 1067, Volga-Ural Region, Province 1015, West Ili Basin, Province 1163, West Kamchatka Basin, Province 1311, West Sakhalin Uplift, Province 1325, West Siberian Basin, Province 1174, Wrangel Basin, Province 1259, Wrangel-Herald Uplift, Province 1260, Yenisey Ridge, Province 1206, Yenisey-Khatanga Basin, Province 1175, Zaysan Basin, Province 1170, Zeya-Bureya Basin, Province 1222, Zyryanka Basin, Province 1251, environment, fsu, geoscientificInformation, oilgas, wep, worldgeologicmaps, Fewer tags USGS National Assessment of Oil and Gas Project - Hydrogen Index (HI), Bend Arch-Fort Worth Basin Province Assessment Units The hydrogen index (HI) is a parameter obtained from Rock-Eval data which reflects general hydrocarbon generation and maturation trends in petroleum systems. In the Mississippian Barnett Shale, the hydrogen index was used to map general boundaries between regions of oil and gas generation within the extents of the formation. Hydrogen index values were obtained via Rock-Eval analyses of Barnett Shale core samples. In this system, HI values greater than 100 represent primarily oil generation and HI values less than 100 represent primarily gas generation. Secondary gas generation is indicated by HI values less than 50. In addition, the 100 HI line was utilized to establish part of the assessment unit (AU) boundaries... Categories: Data, pre-SM502.8; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Assessment Unit, Barnett Continuous Gas, Barnett Mixed Continuous Gas and Oil, Continuous Assessment Unit, Earth Science, All tags... Economic geology, Energy Resources, Geology, Hydrogen Index, National Assessment of Oil and Gas, Natural Gas, Natural Resources, Natural gas resources, Oil, Oil resources, Resource Assessment, U.S. Geological Survey, U.S.A., USGS, USGS Science Data Catalog (SDC), USGS World Energy Region 5, USGS World Energy Region 5, Unconventional Assessment Unit, United States, Western Barnett Continuous Oil, benchfort, geoscientificInformation, noga2000, oilgas, Fewer tags National Assessment of Oil and Gas Project - Powder River Basin Province (033) Quarter-Mile Cells Cell maps for each oil and gas assessment unit were created by the USGS as a method for illustrating the degree of exploration, type of production, and distribution of production in an assessment unit or province. Each cell represents a quarter-mile square of the land surface, and the cells are coded to represent whether the wells included within the cell are predominantly oil-producing, gas-producing, both oil and gas-producing, dry, or the type of production of the wells located within the cell is unknown. The well information was initially retrieved from the IHS Energy Group, PI/Dwights PLUS Well Data on CD-ROM, which is a proprietary, commercial database containing information for most oil and gas wells in the... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: 503301 = Tertiary-Upper Cretaceous Coalbed Methane, 50330101 = Eastern Basin Margin Upper Fort Union Sandstone, 50330181 = Wasatch Formation, 50330182 = Upper Fort Union Formation, 50330183 = Lower Fort Union-Lance Formations, All tags... 503302 = Mowry, 50330261 = Mowry Continuous Oil Assessment Unit, 503303 = Niobrara, 50330361 = Niobrara Continuous Oil Assessment Unit, 503304 = Cretaceous Biogenic Gas, 50330461 = Shallow Continuous Biogenic Gas Assessment Unit, Assessment Unit, Cells, Coalbed methane resources, Earth Science, Economic geology, Energy Resources, Gas hydrate resources, Geology, MT, National Assessment of Oil and Gas, Natural Gas, Natural Resources, Natural gas resources, Oil, Oil sand resources, Oil shale resources, Powder River Basin, Powder River Basin, Resource Assessment, Rocky Mountains and Northern Great Plains, Schenk, C. J., U.S. Geological Survey, US30 = Montana, US56 = Wyoming, USGS, USGS Science Data Catalog (SDC), USGS World Energy Region 5, USGS World Energy Region 5, USGS:60c7aa6ad34e86b9389b2369, United States, WY, geoscientificInformation, noga2000, nogapowder, oilgas, Fewer tags 1 2 3 4 »