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Data Releases

The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.

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Evidence for strain induced graphitization across a ductile fault zone Evidence for strain induced graphitization across a ductile fault zone

A suite of slate samples collected along a 2 km transect crossing the Lishan Fault in central Taiwan were evaluated to assess the role of ductile strain energy in natural graphitization at greenschist facies metamorphic conditions. Scanning electron microscope (SEM) imaging documents phyllosilicate and quartz replacement textures consistent cleavage development via dissolution...
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Energy Resources Program, Mineral Resources Program, Florence Bascom Geoscience Center, Geology, Energy & Minerals Science Center

Portable Raman spectroscopic analysis of bulk crushed rock Portable Raman spectroscopic analysis of bulk crushed rock

This study presents a simplified method and empirical relationships for determining organic matter thermal maturity using a portable Raman system equipped with a 785 nm laser, for analysis of crushed, whole-rock samples. Several sets of rocks comprised of shale and coal samples with various mineralogical composition, thermal maturity, total organic carbon (TOC), and age were used to test...
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National Cooperative Geologic Mapping Program, Central Energy Resources Science Center, Geology, Energy & Minerals Science Center

Heavy Heavy

Heavy is a Fortran program for calculating the change in gravity caused by the change in groundwater storage as predicted by a MODFLOW groundwater-flow model. Gravity change is calculated relative to the initial time step at user-specified locations (e.g., measurement locations). At each location, the gravitational attraction is the sum of the attraction caused by storage change...
By
Arizona Water Science Center

Restoration and Conservation Opportunity Maps for the conterminous U.S. (CONUS) Restoration and Conservation Opportunity Maps for the conterminous U.S. (CONUS)

Nature-based solutions is a leading policy option for mitigating climate change. We mapped areas of potential restoration and conservation opportunities in the conterminous U.S. (CONUS). The potential for five scenarios were examined: increasing forest cover in urban centers, restoring historically forested areas that have been converted to grasslands, conserving pristine grasslands...
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Wetland and Aquatic Research Center

Circuit-based potential fire connectivity and relative flow patterns in the Great Basin, United States, 270 meters Circuit-based potential fire connectivity and relative flow patterns in the Great Basin, United States, 270 meters

The rasters in this dataset represent modeled outputs of potential fire connectivity and relative flow patterns in the Great Basin. We define ‘fire connectivity’ as the landscape’s capacity to facilitate fire transmission from one point on the landscape to another. We applied an omnidirectional circuit theory algorithm (Omniscape) to model fire connectivity in the Great Basin of the...
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Fort Collins Science Center

Golden Eagle Survival in the Great Plains, Nestlings, with Territory and Time Random Effects - Supplemental Code Golden Eagle Survival in the Great Plains, Nestlings, with Territory and Time Random Effects - Supplemental Code

R code for modeling survival of nestling and fledgling golden eagles. It is supplemental material for a manuscript submitted to Journal of Raptor Research.
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Cooperative Research Units
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