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Science 15 November 1991:
Vol. 254. no. 5034, pp. 996 - 998
DOI: 10.1126/science.254.5034.996
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Articles

Magma Generation on Mars: Amounts, Rates, and Comparisons with Earth, Moon, and Venus

RONALD GREELEY 1 and BYRON D. SCHNEID 1

1 Department of Geology, Arizona State University, Tempe, AZ 85287

Total extrusive and intrusive magma generated on Mars over the last sim3.8 billion years is estimated at 654 x 106 cubic kilometers, or 0.17 cubic kilometers per year (km3/yr), substantially less than rates for Earth (26 to 34 km3/yr) and Venus (less than 20 km3/yr) but much more than for the Moon (0.025 km3/yr). When scaled to Earth's mass the martian rate is much smaller than that for Earth or Venus and slightly smaller than for the Moon.

Submitted on July 18, 1991
Accepted on September 23, 1991


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Lithospheric flexure and the origin of the dichotomy boundary on Mars.
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Mars: a review and synthesis of general environments and geological settings of magma-H2O interactions.
J. W. Head III and L. Wilson (2002)
Geological Society, London, Special Publications 202, 27-57
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Outgassed Water on Mars: Constraints from Melt Inclusions in SNC Meteorites.
H. Y. McSween, H. Y. McSween Jr., and R. P. Harvey (1993)
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Science. ISSN 0036-8075 (print), 1095-9203 (online)