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Ridge Spreading, Subduction, and Sea Level Fluctuations

Gurnis, Michael (1990) Ridge Spreading, Subduction, and Sea Level Fluctuations. Science, 250 (4983). pp. 970-972. ISSN 0036-8075. https://resolver.caltech.edu/CaltechAUTHORS:20130128-110548188

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Abstract

A numerical model of mantle convection shows that sea level fluctuations are not simply associated with temporal changes in ocean c plate spreading. In the dynamic model, sea level rises rapidly and then falls toward a steady value (but one still higher than the initial) following increased ridge spreading; this time dependence results from profound changes in the deep thermal structure under ocean and continent. The use of past variations in oceanic spreading to infer sea level fluctuations is called into question. With more realistic models and better continental stratigraphy, constraints may be placed on the viscosity structure of the mantle.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1126/science.250.4983.970 DOIUNSPECIFIED
http://www.sciencemag.org/content/250/4983/970PublisherUNSPECIFIED
Additional Information:© 1990 American Association for the Advancement of Science. Received 2 July 1990; accepted 12 September 1990. Funded by National Science Foundation grants EAR-8957164 and EAR-8904660. B. Hager and H. Pollack provided helpful comments on the manuscript.
Group:Seismological Laboratory
Funders:
Funding AgencyGrant Number
NSFEAR-8957164
NSFEAR-8904660
Issue or Number:4983
Record Number:CaltechAUTHORS:20130128-110548188
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130128-110548188
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36623
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:29 Jan 2013 00:07
Last Modified:03 Oct 2019 04:39

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