Cretaceous vertical motion of Australia and the Australian-Antarctic Discordance

Science

Volumn 279, Issue 5356, 1998, Pages 1499-1504

  Gurnis, Michael ^a   Müller, R Dietmar ^b   Moresi, Louis ^c  

^a CALIFORNIA INSTITUTE OF TECHNOLOGY   (United States)

^b UNIVERSITY OF SYDNEY   (Australia)

^c CSIRO   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

CRETACEOUS; MANTLE CONVECTION; PLATE TECTONICS; SUBDUCTED SLAB;

ANTARCTICA; ARTICLE; AUSTRALIA; EVOLUTION; GEOGRAPHY; GEOLOGY; PRIORITY JOURNAL; THREE DIMENSIONAL IMAGING;

ANTARCTICA; AUSTRALIA;

EID: 0032489586     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.279.5356.1499     Document Type: Article

References (42)

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28. Our models showed that slabs, while in the lower mantle, only moved laterally by about 500 km, and consequently our focus on a segment of the margin confined to beneath Australia and the SEIR was justified.
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30. Thermodynamic calculations and petrologic models estimate that oceanic crustal thickness increases 0.06 km for each 1°C increase in mantle temperature [C. H. Langmuir, E. M. Klein, T. Plank, in Mantle Flow and Melt Generation, J. Phipps Morgan, Ed. (American Geophysical Union, Washington, DC, 1992), pp. 183-280; P. Asimow, thesis, California Institute of Technology, Pasadena (1997)]. Crustal thickness is computed by sampling the temperature within a 200-km region beneath the ridge.
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42. This report represents contribution 8489 of the Division of Geological and Planetary Sciences, California Institute of Technology. Some of the work reported here was conducted as part of the Australian Geodynamics Cooperative Research Centre (AGCRC) and is published with the consent of the Director, AGCRC. We thank J. Veevers for taking the time to discuss the geologic constraints on Mesozoic subduction beneath Australia and K. Gallagher and J. Veevers for helpful comments on the manuscript.