The ICDP-USGS Deep Drilling Project in the Chesapeake Bay impact structure: Results from the Eyreville Core Holes

A petrographic and fluid inclusion assessment of hydrothermal alteration of some impactites and crystalline rocks in the Chesapeake Bay impact structure, ICDP-USGS Eyreville B core
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Published:January 01, 2009
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CiteCitation
David A. Vanko, 2009. "A petrographic and fluid inclusion assessment of hydrothermal alteration of some impactites and crystalline rocks in the Chesapeake Bay impact structure, ICDP-USGS Eyreville B core", The ICDP-USGS Deep Drilling Project in the Chesapeake Bay impact structure: Results from the Eyreville Core Holes, Gregory S. Gohn, Christian Koeberl, Kenneth G. Miller, Wolf Uwe Reimold
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Core samples from the International Continental Scientific Drilling Program (ICDP)–U.S Geological Survey (USGS) Eyreville B core, located in the central crater of the Chesapeake Bay impact structure, were studied to determine the degree to which postimpact hydrothermal activity is recorded in secondary minerals and fluid inclusions. The Chesapeake Bay impact event occurred ~35 Ma ago on the siliciclastic continental shelf of eastern North America, in up to several hundred meters of water. The combination of hot materials, such as impact melts and suevite breccias, with overlying crater-fill material and seawater is hypothesized to have led to postimpact hydrothermal circulation. Secondary...
- Cenozoic
- Chesapeake Bay impact structure
- cores
- Eocene
- fluid inclusions
- hydrothermal alteration
- impactites
- impacts
- inclusions
- International Continental Scientific Drilling Program
- metamorphic rocks
- metasomatism
- mineral composition
- Northampton County Virginia
- Paleogene
- petrography
- Tertiary
- United States
- upper Eocene
- veins
- Virginia
- X-ray diffraction data
- Eyreville Farm