Skip to Main Content
Book Chapter

Integrated sequence stratigraphy of the postimpact sediments from the Eyreville core holes, Chesapeake Bay impact structure inner basin

By
James V. Browning
James V. Browning
Department of Earth and Planetary Sciences, Rutgers University, Piscataway, New Jersey 08854, USA
Search for other works by this author on:
Kenneth G. Miller
Kenneth G. Miller
Department of Earth and Planetary Sciences, Rutgers University, Piscataway, New Jersey 08854, USA
Search for other works by this author on:
Peter P. McLaughlin, Jr.
Peter P. McLaughlin, Jr.
Delaware Geological Survey, University of Delaware, DGS Building, 257 Academy Street, Newark, Delaware 19716, USA
Search for other works by this author on:
Lucy E. Edwards
Lucy E. Edwards
U.S. Geological Survey, 926A National Center, Reston, Virginia 20192, USA
Search for other works by this author on:
Andrew A. Kulpecz
Andrew A. Kulpecz
Department of Earth and Planetary Sciences, Rutgers University, Piscataway, New Jersey 08854, USA
Search for other works by this author on:
David S. Powars
David S. Powars
U.S. Geological Survey, 926A National Center, Reston, Virginia 20192, USA
Search for other works by this author on:
Bridget S. Wade
Bridget S. Wade
Department of Geology and Geophysics, Texas A&M University, College Station, Texas 77843, USA
Search for other works by this author on:
Mark D. Feigenson
Mark D. Feigenson
Department of Earth and Planetary Sciences, Rutgers University, Piscataway, New Jersey 08854, USA
Search for other works by this author on:
James D. Wright
James D. Wright
Department of Earth and Planetary Sciences, Rutgers University, Piscataway, New Jersey 08854, USA
Search for other works by this author on:
Published:
January 01, 2009

The Eyreville core holes provide the first continuously cored record of postimpact sequences from within the deepest part of the central Chesapeake Bay impact crater. We analyzed the upper Eocene to Pliocene postimpact sediments from the Eyreville A and C core holes for lithology (semiquantitative measurements of grain size and composition), sequence stratigraphy, and chronostratigraphy. Age is based primarily on Sr isotope stratigraphy supplemented by biostratigraphy (dinocysts, nannofossils, and planktonic foraminifers); age resolution is approximately ±0.5 Ma for early Miocene sequences and approximately ±1.0 Ma for younger and older sequences. Eocene–lower Miocene sequences are subtle, upper middle to lower upper Miocene sequences are more clearly distinguished, and upper Miocene–Pliocene sequences display a distinct facies pattern within sequences. We recognize two upper Eocene, two Oligocene, nine Miocene, three Pliocene, and one Pleistocene sequence and correlate them with those in New Jersey and Delaware. The upper Eocene through Pleistocene strata at Eyreville record changes from: (1) rapidly deposited, extremely fine-grained Eocene strata that probably represent two sequences deposited in a deep (>200 m) basin; to (2) highly dissected Oligocene (two very thin sequences) to lower Miocene (three thin sequences) with a long hiatus; to (3) a thick, rapidly deposited (43–73 m/Ma), very fine-grained, biosiliceous middle Miocene (16.5–14 Ma) section divided into three sequences (V5–V3) deposited in middle neritic paleoenvironments; to (4) a 4.5-Ma-long hiatus (12.8–8.3 Ma); to (5) sandy, shelly upper Miocene to Pliocene strata (8.3–2.0 Ma) divided into six sequences deposited in shelf and shoreface environments; and, last, to (6) a sandy middle Pleistocene paralic sequence (~400 ka). The Eyreville cores thus record the filling of a deep impact-generated basin where the timing of sequence boundaries is heavily influenced by eustasy.

You do not currently have access to this article.

Figures & Tables

Contents

GSA Special Papers

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

Gregory S. Gohn
Gregory S. Gohn
U.S. Geological Survey, Reston, Virginia, USA
Search for other works by this author on:
Christian Koeberl
Christian Koeberl
Department of Earth & Planetary Sciences, Rutgers University, USA
Search for other works by this author on:
Kenneth G. Miller
Kenneth G. Miller
Museum für Naturkunde–Leibniz Institute at Humboldt University Berlin, Germany
Search for other works by this author on:
Wolf Uwe Reimold
Wolf Uwe Reimold
Museum für Naturkunde–Leibniz Institute at Humboldt University Berlin, Germany
Search for other works by this author on:
Geological Society of America
Volume
458
ISBN print:
9780813724584
Publication date:
January 01, 2009

References

Related

Citing Books via

Related Articles
Related Book Content
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal