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Geosciences 2018, 8(1), 21; https://doi.org/10.3390/geosciences8010021

Realistic Paleobathymetry of the Cenomanian–Turonian (94 Ma) Boundary Global Ocean

1
Department of Natural Sciences, Northwest Missouri State University, Maryville, MO 64468, USA
2
Department of Atmospheric, Oceanic, and Earth Sciences, George Mason University, Fairfax, VA 22030, USA
3
Earth & Planetary Sciences, Johns Hopkins University; Baltimore, MD 21218, USA
*
Author to whom correspondence should be addressed.
Received: 6 November 2017 / Revised: 5 January 2018 / Accepted: 10 January 2018 / Published: 15 January 2018
(This article belongs to the Special Issue Marine Geomorphometry)
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Abstract

At present, global paleoclimate simulations are prepared with bathtub-like, flat, featureless and steep walled ocean bathymetry, which is neither realistic nor suitable. In this article, we present the first enhanced version of a reconstructed paleobathymetry for Cenomanian–Turonian (94 Ma) time in a 0.1° × 0.1° resolution, that is both realistic and suitable for use in paleo-climate studies. This reconstruction is an extrapolation of a parameterized modern ocean bathymetry that combines simple geophysical models (standard plate cooling model for the oceanic lithosphere) based on ocean crustal age, global modern oceanic sediment thicknesses, and generalized shelf-slope-rise structures calibrated from a published global relief model of the modern world (ETOPO1) at active and passive continental margins. The base version of this Cenomanian–Turonian paleobathymetry reconstruction is then updated with known submarine large igneous provinces, plateaus, and seamounts to minimize the difference between the reconstructed paleobathymetry and the real bathymetry that once existed. View Full-Text
Keywords: Cretaceous; Cenomanian–Turonian; paleobathymetry; paleoclimate; paleoceanography; reconstruction; simulation; shelf-slope-rise Cretaceous; Cenomanian–Turonian; paleobathymetry; paleoclimate; paleoceanography; reconstruction; simulation; shelf-slope-rise
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Goswami, A.; Hinnov, L.; Gnanadesikan, A.; Young, T. Realistic Paleobathymetry of the Cenomanian–Turonian (94 Ma) Boundary Global Ocean. Geosciences 2018, 8, 21.

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