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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 65 (1981)

Issue: 5. (May)

First Page: 973

Last Page: 973

Title: New Eustatic Sea Level Curve from Oceanographic Data: ABSTRACT

Author(s): Walter C. Pitman, III, Michelle A. Kominz

Article Type: Meeting abstract


A eustatic sea level curve can be obtained by combining marine geophysical, geologic, and tectonic data. Eustatic sea level variations result from changes in the volume of the world oceans. Volume decreases can be ascribed to increased spreading rates of the mid-ocean ridge system, and of small ocean basins, the presence of hot spots beneath oceanic crust, and an increase in the volume of sediments deposited in the oceans. Orogenic activity results in increased ocean volume as does contraction of the mantle due to increased subduction rates. The formation of major ice sheets offsets eustatic sea level by lowering the volume of water present in the ocean system. A eustatic sea level curve will be obtained, taking into account all of the above effects. This will include an nalysis of the error introduced by geologic uncertainties.

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Copyright 1997 American Association of Petroleum Geologists