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Alaska Division of Oil and Gas personnel collected and interpreted various data sources related to the interpretation of the Base Tertiary unconformity surface in the Cook Inlet Basin, Alaska.Data sources included public literature, public well data information (from the AOGCC-Alaska Oil and Gas Conservation Commission), a palynology database (Greater Cook Inlet Stratigraphic Palynology Control Database and Stud,Zippi, P.A., 2006) and over 2000 miles of 2D marine seismic data (CI-88 and CI-89 licensed from, and complements of, CGGVeritas.) Interpreted formation tops of the Base Tertiary unconformity are tabulated on the map.
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These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This dataset represents 19,031 basin boundaries and their streamgage locations for the U.S. Geological Survey's (USGS) active and historical streamgages from the published dataset of Stewart and others (2006) and its subsequent updates (D.W. Stewart, USGS, written commun., 2011). Only the basin boundaries that were delineated within 15 percent of the basin area reported in the National Water Information System (NWIS) were included...
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The Gulf of Alaska is one of the most productive marine ecosystems on Earth, supporting salmon fisheries that alone provide nearly $1 billion per year in economic benefits to Southeast Alaska. Glaciers are central to many of the area’s natural processes and economic activities, but the rates of glacier loss in Alaska are among the highest on Earth, with a 26-36 percent reduction in total volume expected by the end of the century. This project brought together scientists and managers at a workshop to synthesize the impacts of glacier change on the region’s coastal ecosystems and to determine related research and monitoring needs. Collected knowledge shows that melting glaciers are expected to have cascading effects...
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The Hydrology Point Feature Class defines natural/semi natual point hydrographic features (springs, seeps, tanks, guzzlers…) on RSL. The data for this point feature class was provided by the refuge.
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These data provide generalized outlines of major basins and uplifts in the Gulf Coast region modified after Plate 2, Principal structural features, Gulf of Mexico Basin (compiled by T.E. Ewing and R.F. Lopez) in Volume J, The Geology of North America (1991). This dataset contains basic data and interpretations developed and compiled by the U.S. Geological Survey's Framework Studies and Assessment of the Gulf Coast Project. Other major sources of data include publicly available information from state agencies as well as publications of the U.S. Geological Survey and other scientific organizations. In cases where company proprietary data were used to produce various derivatives such as contour surfaces, the source...
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The Alaska Geologic Materials Center (GMC) in Eagle River holds non-proprietary rock core and cuttings that represent over 13 million feet of exploration and production drilling in Alaska. Additionally, the collection holds more than 252,000 linear feet of diamond-drilled hard-rock mineral core, representing more than 1,800 exploratory boreholes; 76,000 linear feet of oil and gas core and rock samples from more than 1,650 exploratory or production wells; samples for geotechnical boreholes; and numerous surface rock and sediment samples. The collection also includes extensive geochemical data and processed material derived from this rock. This publication represents the GMC inventory in accessible, intuitive digital...
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We present a numeric grid containing estimates of the thickness of unconsolidated sediments for the western United States. Values for these grids were combined and integrated from previous studies or derived directly from gravity analyses. The grids are provided with 1-km grid-node spacing in WGS84 latitude-longitude coordinates. Detailed information regarding the derivation of these estimates is provided by Shah, A.K, and Boyd, O.S., 2018, Depth to basement and thickness of unconsolidated sediments for the western United States - Initial estimates for layers of the U.S. Geological Survey National Crustal Model: U.S. Geological Survey Open-File Report 2018-1115, https://doi.org/10.3133/ofr20181115.
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This dataset includes shallow surface sediment (top 0–2 cm interval) constituent concentration data (primarily) and microbial methylmercury production potential rate data (limited) collected from the Cache Creek Settling Basin (CCSB), Yolo County, California, between April 2010 and July 2017. The dataset includes up to 706 observations (including field replicates) per sediment parameter, reflecting 93 unique sampling locations, with each location having been sampled from 1 to 28 times (excluding field replicates) over this 8-year period. There were four spatially intensive field campaigns conducted (February–March 2013, May 2013, October–November 2014, and January–March 2015), during which at least 90 sites were...
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Alaska Division of Geological & Geophysical Surveys (DGGS) has conducted 1:63,360-scale geologic mapping of the Sagavanirktok B-1 Quadrangle (640 square km�equivalent to four 7.5 minute quadrangles). This mapping project reinterprets micropaleontologic correlations for 17 Sagavanirktok Quadrangle wells, and reprocesses data from the one publicly-available seismic line. Surface geologic mapping, subsurface-to-surface stratigraphic age control, and seismic framework are required to reliably decipher the complex geology of this key area of the Brooks Range. Outcrops within the Sagavanirktok B-1 Quadrangle are the closest surface expressions of Prudhoe Bay source and reservoir rocks. This study yields critical petroleum-related...
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The Stormwater Action Monitoring (SAM) program is a cumulative and regional monitoring effort in the Puget Sound region of Washington State. Under the SAM program, the status and trends of water chemistry, sediment chemistry, habitat and biota in small streams and nearshore marine waters in the Puget Lowlands are monitored and documented. As part of recommendations to the program made in 2018, site selection in 2019 focused on small watersheds ranging in size from 2.5-50 km2 with varying amounts of urbanization. A master list of 19,970 possible sampling sites was digitally snapped to the National Hydrologic Dataset (NHD) high-resolution version flowlines (1:24000), and from this a set of characterized nested basins...
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Used in the national level analysis of the Mining and Critical Ecosystems project for the country of Papua New Guinea.
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The Florida Flood Hub for Applied Research and Innovation and the U.S. Geological Survey have developed projected future change factors for precipitation depth-duration-frequency (DDF) curves at 242 NOAA Atlas 14 stations in Florida. The change factors were computed as the ratio of projected future to historical extreme-precipitation depths fitted to extreme-precipitation data from downscaled climate datasets using a constrained maximum likelihood (CML) approach as described in https://doi.org/10.3133/sir20225093. The change factors correspond to the period 2020-59 (centered in 2040) or to the period 2050-89 (centered in the year 2070) as compared to the 1966-2005 historical period. Geospatial data provided in...
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We present a numeric grid containing estimates of the depth to the pre-Cenozoic basement for the western United States. Values for these grids were combined and integrated from previous studies or derived directly from gravity analyses. The grids are provided with 1-km grid-node spacing in WGS84 latitude-longitude coordinates. Detailed information regarding the derivation of these estimates is provided by Shah, A.K. and Boyd, O.S., 2018, Depth to basement and thickness of unconsolidated sediments for the western United States - Initial estimates for layers of the U.S. Geological Survey National Crustal Model: U.S. Geological Survey Open-File Report 2018-1115, https://doi.org/10.3133/ofr20181115.
The Colorado River Basin, poor in water and rich in energy resources, is examined to see if water quality can be sustained for U.S. and Mexican users. Activities to mine, process, transport, and convert resources to energy and to reclaim the land all require water, although development is expected to continue in spite of uncertainties. Projections of water requirements for different energy sources are summarized for the 1990-2000 time period. Restrictions on water supply derive from both quantity limitations and such institutional barriers as water rights and contracts. Projections of the sources and occurrences of salinity levels and pollutants are detailed for each section of the Basin. Salinity is concluded to...
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Note: This data release has been superseded by version 2.0, available here: https://doi.org/10.5066/P9MDXR3M. The Cache Creek Settling Basin (CCSB) is a 13.3 km2 leveed basin located at the terminal drainage of the Cache Creek watershed, immediately NE of the town of Woodland (Yolo County), California and approximately 18 km NW of Sacramento, California. The basin was constructed by the U.S. Army Corps of Engineers (completed in 1937 and modified in 1993) for the purpose of trapping suspended sediment transported from the upper Cache Creek watershed during high-flow events, thus preventing sediment from entering the Yolo Bypass, a larger downstream floodwater conveyance and agricultural zone. In addition to trapping...
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This ArcView shapefile contains a polygon representation of the Green River Basin boundary. This boundary is a part of the National Coal Resource Assessment of the Northern Rocky Mountain and Great Plains Fort Union Coal Resources Assessment Area. This boundary can be shown in relation to other relevant themes in the Gren River Basin.
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This preliminary report is a summary of progress made during the 2006-07 field seasons reconstructing depositional systems in Tertiary strata exposed in the Homer-Kachemak Bay area.The study area addressed in this report extends from Clam Gulch in the north to Coal Cove in the south.Tertiary strata in this area are only mildly deformed and provide a relatively clear view of depositional systems and sand body geometries along the eastern basin edge and their change from basin edge to more basin axial positions.
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Alaska Division of Geological & Geophysical Surveys (DGGS) has conducted 1:63,360-scale geologic mapping of the Sagavanirktok B-1 Quadrangle (640 square km�equivalent to four 7.5 minute quadrangles). This geologic map was produced by merging a bedrock geologic map and a surficial geologic map of the Eagle A-2 Quadrangle. This mapping project reinterprets micropaleontologic correlations for 17 Sagavanirktok Quadrangle wells, and reprocesses data from the one publicly-available seismic line. Surface geologic mapping, subsurface-to-surface stratigraphic age control, and seismic framework are required to reliably decipher the complex geology of this key area of the Brooks Range. Outcrops within the Sagavanirktok B-1...
map background search result map search result map From Icefield to Ocean: Glacier Change Impacts to Alaska’s Coastal Ecosystems Watershed Basins of Papua New Guinea Hydrology point features, Ruby Lake NWR Shallow Sediment Geochemistry in a Mercury-Contaminated Multi-Habitat Floodplain: Cache Creek Settling Basin, Yolo County, California, 2010–17 Shallow Sediment Geochemical Data for the Cache Creek Settling Basin, Yolo County, California, 2010–17 The Alaska Geological Materials Center Inventory Facies associations, sand body geometry, and depositional systems in Late Oligocene-Pliocene strata, southern Kenai Peninsula, Cook Inlet, Alaska: Report on progress during the 2006-07 field season Geological map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska Top Mesozoic unconformity depth map of the Cook Inlet Basin, Alaska Thickness of unconsolidated sediments for the USGS National Crustal Model Depth to Mesozoic basement for the USGS National Crustal Model BLM NOC Sources of Broad-Scale Data by Agency Story Map Puget Sound Stormwater Action Monitoring Basin Characteristics Gulf Coast Basins and Uplifts [gcstructsg] Green River Basin boundary, 1999 National Coal Resource Assessment (grbbndg.shp) Hanna and Carbon Basin boundaries, Wyoming, 1999 National Coal Resource Assessment (hcbbndg) USGS Streamgage NHDPlus Version 1 Basins 2011 Shapefile of NOAA Atlas 14 stations in Florida (Atlas14_stations.shp) Shallow Sediment Geochemistry in a Mercury-Contaminated Multi-Habitat Floodplain: Cache Creek Settling Basin, Yolo County, California, 2010–17 Shallow Sediment Geochemical Data for the Cache Creek Settling Basin, Yolo County, California, 2010–17 Hydrology point features, Ruby Lake NWR Geological map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska Interpretive bedrock-geologic map of the Sagavanirktok B-1 Quadrangle, eastern North Slope, Alaska Hanna and Carbon Basin boundaries, Wyoming, 1999 National Coal Resource Assessment (hcbbndg) Facies associations, sand body geometry, and depositional systems in Late Oligocene-Pliocene strata, southern Kenai Peninsula, Cook Inlet, Alaska: Report on progress during the 2006-07 field season Puget Sound Stormwater Action Monitoring Basin Characteristics Green River Basin boundary, 1999 National Coal Resource Assessment (grbbndg.shp) Top Mesozoic unconformity depth map of the Cook Inlet Basin, Alaska Shapefile of NOAA Atlas 14 stations in Florida (Atlas14_stations.shp) USGS Streamgage NHDPlus Version 1 Basins 2011 Watershed Basins of Papua New Guinea From Icefield to Ocean: Glacier Change Impacts to Alaska’s Coastal Ecosystems Depth to Mesozoic basement for the USGS National Crustal Model Thickness of unconsolidated sediments for the USGS National Crustal Model Gulf Coast Basins and Uplifts [gcstructsg] BLM NOC Sources of Broad-Scale Data by Agency Story Map The Alaska Geological Materials Center Inventory