Found 19 datasets matching "Tertiary Period".
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This data release contains reflectance measurements for eight samples submitted to the USGS Organic Petrology Laboratory in Reston. Samples include two artificial rock samples made from cement...
Search relevance: 37.31 | Views last month: 0 -
The U.S. Geological Survey, Western Ecological Research Center collected sediment and accretion data at a wave-exposed tidal salt marsh in South San Francisco Bay, California. Sediment traps and...
Search relevance: 36.56 | Views last month: 0 -
This dataset includes X-ray fluorescence (XRF) major-oxide and trace-elements analysis and inductively coupled plasma-mass spectrometry (ICP-MS) trace-element analysis of Cenozoic, mainly...
Search relevance: 36.20 | Views last month: 1 -
For sample mounting, organic petrology laboratories typically use cold-setting epoxy-resin (e.g., 40°C, used by Oklahoma Geological Survey, OGS) or heat-setting plastic (e.g., 180°C, used by U.S....
Search relevance: 33.81 | Views last month: 0 -
Objective To determine the utility of routine chest radiographs (CXRs) in clinical decision-making in the intensive care unit (ICU). Design A...
Search relevance: 32.75 | Views last month: 0 -
As more hydrocarbon production from hydraulic fracturing and other methods produce large volumes of water, innovative methods must be explored for treatment and reuse of these waters. However,...
Search relevance: 31.66 | Views last month: 0 -
This geodatabase contains all the geologic map information for the Geologic Map of the San Juan caldera cluster, southwestern Colorado and is part of U.S. Geological Survey Geologic Investigations...
Search relevance: 30.80 | Views last month: 3 -
A three-dimensional groundwater flow model was developed to characterize groundwater resources the uppermost principal aquifers in the Williston structural basin in parts of Montana, North...
Search relevance: 29.92 | Views last month: 0 -
The U.S. Geological Survey (USGS), in cooperation with the Lewis and Clark Natural Resources District (NRD), Lower Elkhorn NRD, Lower Loup NRD, Lower Platte North NRD, Lower Niobrara NRD, Middle...
Search relevance: 28.74 | Views last month: 0 -
Watershed-scale coupled surface water (SW) – groundwater (GW) flow modeling was used to examine changes in streamflow and SW – GW interaction resulting from irrigation and associated SW...
Search relevance: 27.06 | Views last month: 2 -
Background: The purpose of this study was to evaluate the effect of altering the use of the protocol for brain death determination in traumatically injured patients, on time to brain...
Search relevance: 26.25 | Views last month: 1 -
The U.S. Geological Survey (USGS), in cooperation with the Lewis and Clark Natural Resources District (NRD), Lower Elkhorn NRD, Lower Loup NRD, Lower Platte North NRD, Lower Niobrara NRD, Middle...
Search relevance: 25.72 | Views last month: 0 -
The U.S. Geological Survey (USGS), in cooperation with the Lewis and Clark Natural Resources District (NRD), Lower Elkhorn NRD, Lower Loup NRD, Lower Platte North NRD, Lower Niobrara NRD, Middle...
Search relevance: 25.14 | Views last month: 4 -
This coverage contains information about the surficial geology for the area within the Standing Rock Indian Reservation, Sioux County, North Dakota, and Corson County, South Dakota. Identified...
Search relevance: 24.01 | Views last month: 0 -
Disko Island (8600 km2) is situated west of central mainland Greenland. The island is part of the Tertiary volcanic province of West Greenland and is mainly made up by lavas. The landscape is a...
Search relevance: 22.46 | Views last month: 0 -
The Mississippi Alluvial Plain (MAP) is one of the most important agricultural regions in the United States and underlies about 32,000 square miles of Missouri, Kentucky, Tennessee, Mississippi,...
Search relevance: 21.68 | Views last month: 0 -
A three-dimensional groundwater flow model was developed to characterize groundwater resources of the uppermost principal aquifers in the Williston structural basin in parts of Montana, North...
Search relevance: 20.50 | Views last month: 0 -
The goal of the Atlantic Subsurface Stratigraphic Initiative (ASSI) is to create isopach and structural contour maps for all Coastal Plain formations within the Salisbury Embayment of Maryland and...
Search relevance: 17.42 | Views last month: 0 -
The Mississippi Alluvial Plain (MAP) is one of the most important agricultural regions in the United States and underlies about 32,000 square miles of Missouri, Kentucky, Tennessee, Mississippi,...
Search relevance: 15.32 | Views last month: 0
