Found 7 datasets matching filters. (clear all filters)
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The U.S. Geological Survey, in cooperation with the Air Force Civil Engineering Center, investigated the use of surface geophysical surveys to delineate the top of the Cretaceous Pierre Shale...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: May 05, 2026 at 09:30 PM -
The U.S. Geological Survey, in cooperation with the U.S. Air Force Civil Engineer Center, used surface geophysical methods to delineate the top of the Cretaceous Pierre Shale along survey...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: May 05, 2026 at 09:47 PM -
In summer 2018, a total of 43 passive seismic surveys were conducted in the Des Moines River floodplain. The horizontal-to-vertical spectral ratio (HVSR) method is a passive seismic technique that...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 05, 2026 at 08:24 PM -
A suite of geophysical methods was used along the Des Moines River, Beaver Creek, and in the Des Moines River floodplain in Des Moines, Iowa to support the hydrogeologic characterization of the...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: May 05, 2026 at 08:17 PM -
This dataset contains passive seismic data collected using a three-component seismometer during 2018-2020 at Pinnacles National Park, California. The data were acquired for the purpose of...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: May 05, 2026 at 09:15 PM -
Horizontal-to-Vertical Spectral Ratio (HVSR) passive seismic soundings were collected by the U.S. Geological Survey (USGS) at 27 locations throughout the Illinois River Basin (IRB) in October and...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: May 05, 2026 at 08:06 PM -
In November 2022, Ground-based time domain electromagnetic (TEM) data and Horizontal-to-Vertical Spectral Ratio (HVSR) passive seismic soundings were acquired by the U.S. Geological Survey (USGS)...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: May 05, 2026 at 08:01 PM
