Chesapeake Bay Impact Structure Drilled

	Become an AGU Member Subscribe to AGU Journals



Print Version (214602 bytes) EOS, TRANSACTIONS AMERICAN GEOPHYSICAL UNION, VOL. 87, NO. 35, doi:10.1029/2006EO350001, 2006 Chesapeake Bay Impact Structure Drilled Gregory S. Gohn USGS, Reston, Virginia, USA Christian Koeberl Department of Geological Sciences, University of Vienna, Vienna, Austria Kenneth G. Miller Department of Geological Sciences, Rutgers University, Piscataway, New Jersey, USA Wolf Uwe Reimold Museum of Natural History, Humboldt University, Berlin, Germany Charles S. Cockell Planetary and Space Sciences Research Institute, Open University, Milton Keynes, UK J. Wright Horton, Jr. USGS, Reston, Virginia, USA Ward E. Sanford USGS, Reston, Virginia, USA Mary A. Voytek USGS, Reston, Virginia, USA Abstract The Chesapeake Bay impact structure was formed by a meteorite crashing to Earth during the late Eocene, about 35.5 million years ago (Ma). In May 2006, a scientific drilling project, sponsored by the International Continental Scientific Drilling Program (ICDP) and the U.S. Geological Survey (USGS), completed a deep coring program into the impact structure. The deep drilling produced one of the most complete geologic sections ever obtained in an impact structure, and studies of the core samples will allow scientists to understand a shallow-marine impact event and its consequences at an unprecedented level. Published 29 August 2006. Index Terms: 5420 Planetary Sciences: Solid Surface Planets: Impact phenomena, cratering (6022, 8136); 8136 Tectonophysics: Impact phenomena (5420, 6022). Print Version (214602 bytes) Citation: Gohn, G. S., C. Koeberl, K. G. Miller, W. U. Reimold, C. S. Cockell, J. W. Horton, Jr., W. E. Sanford, and M. A. Voytek (2006), Chesapeake Bay Impact Structure Drilled, Eos Trans. AGU, 87(35), doi:10.1029/2006EO350001. Copyright 2006 by the American Geophysical Union.

Abstract