The Chesapeake Bay Impact Crater
In 2005 and 2006, the International Continental Scientific Drilling Program and the U.S. Geological Survey drilled a 1,766-m-deep test hole near the center of the Chesapeake Bay impact structure.
Below you can find publications relevant to the discovery and characterization of the Chesapeake Bay Impact Crater.
Professional Papers
Professional Papers
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The effects of the Chesapeake Bay impact crater on the geological framework and correlation of hydrogeologic units of the lower York-James Peninsula, Virginia The effects of the Chesapeake Bay impact crater on the geological framework and correlation of hydrogeologic units of the lower York-James Peninsula, Virginia
This report documents the highly variable structure, stratigraphy, and buried topography of the outer rim of the Chesapeake Bay impact crater created by its impact and burial. Lithologies of cores are correlated with borehole geophysical logs to characterize the physical properties of the stratigraphic units and their geophysical signatures. The correlation between cores, well cuttings...AuthorsDavid Powars, Bruce Scott
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The effects of the Chesapeake Bay impact crater on the geologic framework and the correlation of hydrogeologic units of southeastern Virginia, south of the James River The effects of the Chesapeake Bay impact crater on the geologic framework and the correlation of hydrogeologic units of southeastern Virginia, south of the James River
About 35 million years ago, a large comet or meteor slammed into the shallow shelf on the western margin of the Atlantic Ocean, creating the Chesapeake Bay impact crater. This report, the second in a series, refines the geologic framework of southeastern Virginia, south of the James River in and near the impact crater, and presents evidence for the existence of a pre-impact James River...AuthorsDavid Powars
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Studies of the Chesapeake Bay impact structure: The USGS-NASA Langley corehole, Hampton, Virginia, and related coreholes and geophysical surveys Studies of the Chesapeake Bay impact structure: The USGS-NASA Langley corehole, Hampton, Virginia, and related coreholes and geophysical surveys
No abstract available.AuthorsJ. Wright Horton, David Powars, Gregory S. Gohn
Open-file reports
Open-file reports
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Preliminary report on the USGS-NASA Langley Corehole -- the Chesapeake Bay Impact Crater Project: A. Operational summary for the USGS -- NASA Langley Corehole, Hampton, Virginia. B. Preliminary geologic summary for the USGS -- NASA Langley Corehol, Hampto Preliminary report on the USGS-NASA Langley Corehole -- the Chesapeake Bay Impact Crater Project: A. Operational summary for the USGS -- NASA Langley Corehole, Hampton, Virginia. B. Preliminary geologic summary for the USGS -- NASA Langley Corehol, Hampto
No abstract available.AuthorsGregory S. Gohn, Arthur Clark, Donald Queen, Joel Levine, Randolph McFarland, David Powars, Bruce Scott, Laurel Bybell, Thomas Cronin, Lucy Edwards, Norman Frederiksen, J. Wright Horton, Glen Izett, Gerald Johnson, C. Poag, James Quick, J. Schindler, Jean Self-Trail, Matthew Smith, Robert Stamm, Robert WeemsHigh-resolution seismic reflection/refraction images near the outer margin of the Chesapeake Bay impact crater, York-James Peninsula, southeastern Virginia High-resolution seismic reflection/refraction images near the outer margin of the Chesapeake Bay impact crater, York-James Peninsula, southeastern Virginia
Powars and Bruce (1999) showed that the Chesapeake Bay region of southeastern Virginia was the site of an asteroid or comet impact during the late Eocene, approximately 35 million years ago (Fig. 1). Initial borehole and marine seismic-reflection data revealed a 90-km-diameter impact structure, referred to as the Chesapeake Bay Impact Crater (CBIC), that lies buried beneath the southern...AuthorsR. Catchings, D.E. Saulter, D.S. Powars, M. Goldman, J.A. Dingler, G. Gohn, J.S. Schindler, G.H. JohnsonICDP-USGS workshop on deep drilling in the central Crater of the Chesapeake Bay impact structure, Virginia, USA: Proceedings volume ICDP-USGS workshop on deep drilling in the central Crater of the Chesapeake Bay impact structure, Virginia, USA: Proceedings volume
No abstract available.AuthorsLucy Edwards, J. Wright Horton, Gregory S. GohnSite Report for USGS Test Holes Drilled at Cape Charles, Northampton County, Virginia, in 2004 Site Report for USGS Test Holes Drilled at Cape Charles, Northampton County, Virginia, in 2004
The U.S. Geological Survey drilled two test holes near Cape Charles, Virginia, during May and June 2004, as part of an investigation of the buried, late Eocene Chesapeake Bay impact structure. The first hole is designated as the USGS-Sustainable Technology Park test hole #1 (USGS-STP1). This test hole was abandoned at a depth of 300 ft; cuttings samples were collected, but no cores or...AuthorsGregory S. Gohn, Ward Sanford, David Powars, J. Wright Horton, Lucy Edwards, Roger Morin, Jean Self-Trail