Chesapeake Bay Impact Structure
In the fall and winter, 2005 the International
Continental Scientific Drilling Program and the United
States Geological Survey drilled a deep corehole into the
center of the Chesapeake Bay impact crater (Gohn et al., 2006). The deep hole
was located in the Cheriton-Eastville area of Northampton
County, Virginia (the Delmarva Peninsula) on the
Eyreville farm, (37° 19.3' N, 75° 58.54' W). In addition,
a shallow corehole (2-460 ft) was drilled in April and
May, 2006 sampling the uppermost sediments not cored by
the deep corehole. Both the shallow core and the interval
above 1140 ft (416.3-1140 ft; Oligocene and younger
sediments) in the deep corehole are stored in the Rutgers
core repository. These coreholes represent an excellent
record of sea level and climate change from the Oligocene
to the Recent. Following a moratorium period these cores
will be available to scientists for study. Post-impact
studies are supported by a grant from the National
Science Foundation, Earth Science Division, Continental
Dynamics Program.
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CBIS Summary Article from Scientific Drilling [pdf]
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