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The Petrochemistry of Jake_M: A Martian Mugearite

Stolper, E. M. and Baker, M. B. and Newcombe, M. E. and Schmidt, M. E. and Treiman, A. H. and Cousin, A. and Dyar, M. D. and Fisk, M. R. and Gellert, R. and King, P. L. and Leshin, L. and Maurice, S. and McLennan, S. M. and Minitti, M. E. and Perrett, G. and Rowland, S. and Sautter, V. and Wiens, R. C. (2013) The Petrochemistry of Jake_M: A Martian Mugearite. Science, 341 (6153). Art. No. 1239463. ISSN 0036-8075. doi:10.1126/science.1239463.

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“Jake_M,” the first rock analyzed by the Alpha Particle X-ray Spectrometer instrument on the Curiosity rover, differs substantially in chemical composition from other known martian igneous rocks: It is alkaline (>15% normative nepheline) and relatively fractionated. Jake_M is compositionally similar to terrestrial mugearites, a rock type typically found at ocean islands and continental rifts. By analogy with these comparable terrestrial rocks, Jake_M could have been produced by extensive fractional crystallization of a primary alkaline or transitional magma at elevated pressure, with or without elevated water contents. The discovery of Jake_M suggests that alkaline magmas may be more abundant on Mars than on Earth and that Curiosity could encounter even more fractionated alkaline rocks (for example, phonolites and trachytes).

Item Type:Article
Related URLs:
URLURL TypeDescription PDF Article HTML Aticle
Stolper, E. M.0000-0001-8008-8804
Newcombe, M. E.0000-0002-8450-768X
Treiman, A. H.0000-0002-8073-2839
Cousin, A.0000-0001-7823-7794
Dyar, M. D.0000-0003-4272-793X
Gellert, R.0000-0001-7928-834X
McLennan, S. M.0000-0003-4259-7178
Minitti, M. E.0000-0003-4715-4544
Sautter, V.0000-0002-4263-7558
Wiens, R. C.0000-0002-3409-7344
Alternate Title:Curiosity at Gale Crater
Additional Information:© 2013 American Association for the Advancement of Science. Received 22 April 2013; accepted 8 August 2013. P. Antoshechkin provided insight concerning several aspects of MELTS and S. Lambart ran early MELTS calculations and provided initial compilations of terrestrial alkaline lavas. We would also like to thank two anonymous referees for constructive reviews of the manuscript and the MSL Project engineering and management teams for their efforts in making the mission such a success. This work was supported by grants from the NSF, NASA, the Canadian Space Agency, and the Centre National d’Études Spatiales. Compositional data for Jake_M are reported in Table 1.
Errata:In Table 1, the value reported for Na2O in JM2n was incorrect. The correct value is 6.59(14). Additionally, the Table 1 legend should have indicated that for Cr2O3, only the two long-duration analyses, JM1 and JM2n, were averaged. The HTML and PDF versions online have been corrected.
Funding AgencyGrant Number
Canadian Space Agency (CSA)UNSPECIFIED
Centre National d’Etudes Spatiales (CNES)UNSPECIFIED
Subject Keywords:Jake_M ; Gale Crater ; Mars Science Laboratory ; Curiosity
Non-Subject Keywords:Mars Science Laboratory ; Curiosity ; NASA
Issue or Number:6153
Record Number:CaltechAUTHORS:20130930-095738424
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Official Citation:The Petrochemistry of Jake_M: A Martian Mugearite E. M. Stolper, M. B. Baker, M. E. Newcombe, M. E. Schmidt, A. H. Treiman, A. Cousin, M. D. Dyar, M. R. Fisk, R. Gellert, P. L. King, L. Leshin, S. Maurice, S. M. McLennan, M. E. Minitti, G. Perrett, S. Rowland, V. Sautter, R. C. Wiens, and MSL Science Team Science 27 September 2013: 341 (6153), 1239463 [DOI:10.1126/science.1239463]
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41547
Deposited By: Tony Diaz
Deposited On:30 Sep 2013 18:51
Last Modified:10 Nov 2021 04:31

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