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Eocene-Oligocene sea-level changes on the New Jersey coastal plain linked to the deep-sea record

Kenneth G. Miller; Dennis V. Kent; Andrew N. Brower; Laurel M. Bybell; Mark D. Feigenson; Richard K. Olsson; Richard Z. Poore

Title:
Eocene-Oligocene sea-level changes on the New Jersey coastal plain linked to the deep-sea record
Author(s):
Miller, Kenneth G.
Kent, Dennis V.
Brower, Andrew N.
Bybell, Laurel M.
Feigenson, Mark D.
Olsson, Richard K.
Poore, Richard Z.
Date:
Type:
Articles
Department:
Lamont-Doherty Earth Observatory
Volume:
102
Permanent URL:
Book/Journal Title:
Geological Society of America Bulletin
Abstract:
We use magnetostratigraphy and Sr-isotope stratigraphy to improve stratigraphic control for the Eocene to Oligocene of the New Jersey coastal plain (ACGS4 borehole). Magnetostratigraphy in many cases is complicated in outcrop sections of shallow-water (<200 m paleodepth) sediments by low remanence and weathering; we minimize these problems by analyzing large samples obtained from the ACGS4 borehole and construct a firm magnetochronology for the early to middle Eocene. Sr-isotope stratigraphy confirms biostratigraphic evidence for a previously unknown uppermost Eocene to lowermost Oligocene unit and delineates a "middle" Oligocene hiatus that is unresolvabie using biostratigraphy alone. We recognize hiatuses and associated unconformities on the New Jersey margin near the lower Eocene/middle Eocene boundary, within the middle Eocene, and in the "middle" Oligocene and correlate these events with similar hiatuses observed in other continental-shelf, slope, and epicontinental settings. In addition, a hiatus probably occurred near the middle Eocene/upper Eocene boundary. We conclude that the interregional distribution of these Eocene-Oligocene hiatuses indicates a global cause: eustatic change.
Subject(s):
Physical oceanography
Sedimentary geology
Publisher DOI:
http://dx.doi.org/10.1130/0016-7606(1990)102%3c0331:EOSLCO%3e2.3.CO;2
Item views:
115
Metadata:
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Suggested Citation:
Kenneth G. Miller, Dennis V. Kent, Andrew N. Brower, Laurel M. Bybell, Mark D. Feigenson, Richard K. Olsson, Richard Z. Poore, 1990, Eocene-Oligocene sea-level changes on the New Jersey coastal plain linked to the deep-sea record, Columbia University Academic Commons, http://hdl.handle.net/10022/AC:P:12247.

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