Bounce Rock-A shergottite-like basalt encountered at Meridiani Planum, Mars

Jutta Zipfel; Christian Schröder; Bradley L. Jolliff; Ralf Gellert; Kenneth E. Herkenhoff; Rudolf Rieder; Robert Anderson; James Bell; Johannes Brückner; Joy A. Crisp; Philip Christensen; Benton C. Clark; Paulo A. De Souza; Gerlind Dreibus; Claude D'uston; Thanasis Economou; Steven P. Gorevan; Brian C. Hahn; Göstar Klingelhöfer; Timothy J. Mccoy; Harry Y. Mcsween; Douglas W. Ming; Richard V. Morris; Daniel S. Rodionov; Steven W. Squyres; Heinrich Wänke; Shawn P. Wright; Michael B. Wyatt; Albert S. Yen

doi:10.1111/j.1945-5100.2010.01127.x

Bounce Rock-A shergottite-like basalt encountered at Meridiani Planum, Mars

Jutta Zipfel, Christian Schröder, Bradley L. Jolliff, Ralf Gellert, Kenneth E. Herkenhoff, Rudolf Rieder, Robert Anderson, James Bell, Johannes Brückner, Joy A. Crisp, Philip Christensen, Benton C. Clark, Paulo A. De Souza, Gerlind Dreibus, Claude D'uston, Thanasis Economou, Steven P. Gorevan, Brian C. Hahn, Göstar Klingelhöfer, Timothy J. MccoyHarry Y. Mcsween, Douglas W. Ming, Richard V. Morris, Daniel S. Rodionov, Steven W. Squyres, Heinrich Wänke, Shawn P. Wright, Michael B. Wyatt, Albert S. Yen

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Abstract

The Opportunity rover of the Mars Exploration Rover mission encountered an isolated rock fragment with textural, mineralogical, and chemical properties similar to basaltic shergottites. This finding was confirmed by all rover instruments, and a comprehensive study of these results is reported here. Spectra from the miniature thermal emission spectrometer and the Panoramic Camera reveal a pyroxene-rich mineralogy, which is also evident in Mössbauer spectra and in normative mineralogy derived from bulk chemistry measured by the alpha particle X-ray spectrometer. The correspondence of Bounce Rock's chemical composition with the composition of certain basaltic shergottites, especially Elephant Moraine (EET) 79001 lithology B and Queen Alexandra Range (QUE) 94201, is very close, with only Cl, Fe, and Ti exhibiting deviations. Chemical analyses further demonstrate characteristics typical of Mars such as the Fe/Mn ratio and P concentrations. Possible shock features support the idea that Bounce Rock was ejected from an impact crater, most likely in the Meridiani Planum region. Bopolu crater, 19.3km in diameter, located 75km to the southwest could be the source crater. To date, no other rocks of this composition have been encountered by any of the rovers on Mars. The finding of Bounce Rock by the Opportunity rover provides further direct evidence for an origin of basaltic shergottite meteorites from Mars.

Original language	English (US)
Pages (from-to)	1-20
Number of pages	20
Journal	Meteoritics and Planetary Science
Volume	46
Issue number	1
DOIs	https://doi.org/10.1111/j.1945-5100.2010.01127.x
State	Published - Jan 2011

ASJC Scopus subject areas

Geophysics
Space and Planetary Science

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10.1111/j.1945-5100.2010.01127.x

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Zipfel, J., Schröder, C., Jolliff, B. L., Gellert, R., Herkenhoff, K. E., Rieder, R., Anderson, R., Bell, J., Brückner, J., Crisp, J. A., Christensen, P., Clark, B. C., De Souza, P. A., Dreibus, G., D'uston, C., Economou, T., Gorevan, S. P., Hahn, B. C., Klingelhöfer, G., ... Yen, A. S. (2011). Bounce Rock-A shergottite-like basalt encountered at Meridiani Planum, Mars. Meteoritics and Planetary Science, 46(1), 1-20. https://doi.org/10.1111/j.1945-5100.2010.01127.x

Zipfel, J, Schröder, C, Jolliff, BL, Gellert, R, Herkenhoff, KE, Rieder, R, Anderson, R, Bell, J, Brückner, J, Crisp, JA, Christensen, P, Clark, BC, De Souza, PA, Dreibus, G, D'uston, C, Economou, T, Gorevan, SP, Hahn, BC, Klingelhöfer, G, Mccoy, TJ, Mcsween, HY, Ming, DW, Morris, RV, Rodionov, DS, Squyres, SW, Wänke, H, Wright, SP, Wyatt, MB & Yen, AS 2011, 'Bounce Rock-A shergottite-like basalt encountered at Meridiani Planum, Mars', Meteoritics and Planetary Science, vol. 46, no. 1, pp. 1-20. https://doi.org/10.1111/j.1945-5100.2010.01127.x

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title = "Bounce Rock-A shergottite-like basalt encountered at Meridiani Planum, Mars",

abstract = "The Opportunity rover of the Mars Exploration Rover mission encountered an isolated rock fragment with textural, mineralogical, and chemical properties similar to basaltic shergottites. This finding was confirmed by all rover instruments, and a comprehensive study of these results is reported here. Spectra from the miniature thermal emission spectrometer and the Panoramic Camera reveal a pyroxene-rich mineralogy, which is also evident in M{\"o}ssbauer spectra and in normative mineralogy derived from bulk chemistry measured by the alpha particle X-ray spectrometer. The correspondence of Bounce Rock's chemical composition with the composition of certain basaltic shergottites, especially Elephant Moraine (EET) 79001 lithology B and Queen Alexandra Range (QUE) 94201, is very close, with only Cl, Fe, and Ti exhibiting deviations. Chemical analyses further demonstrate characteristics typical of Mars such as the Fe/Mn ratio and P concentrations. Possible shock features support the idea that Bounce Rock was ejected from an impact crater, most likely in the Meridiani Planum region. Bopolu crater, 19.3km in diameter, located 75km to the southwest could be the source crater. To date, no other rocks of this composition have been encountered by any of the rovers on Mars. The finding of Bounce Rock by the Opportunity rover provides further direct evidence for an origin of basaltic shergottite meteorites from Mars.",

author = "Jutta Zipfel and Christian Schr{\"o}der and Jolliff, {Bradley L.} and Ralf Gellert and Herkenhoff, {Kenneth E.} and Rudolf Rieder and Robert Anderson and James Bell and Johannes Br{\"u}ckner and Crisp, {Joy A.} and Philip Christensen and Clark, {Benton C.} and {De Souza}, {Paulo A.} and Gerlind Dreibus and Claude D'uston and Thanasis Economou and Gorevan, {Steven P.} and Hahn, {Brian C.} and G{\"o}star Klingelh{\"o}fer and Mccoy, {Timothy J.} and Mcsween, {Harry Y.} and Ming, {Douglas W.} and Morris, {Richard V.} and Rodionov, {Daniel S.} and Squyres, {Steven W.} and Heinrich W{\"a}nke and Wright, {Shawn P.} and Wyatt, {Michael B.} and Yen, {Albert S.}",

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T1 - Bounce Rock-A shergottite-like basalt encountered at Meridiani Planum, Mars

AU - Zipfel, Jutta

AU - Schröder, Christian

AU - Jolliff, Bradley L.

AU - Gellert, Ralf

AU - Herkenhoff, Kenneth E.

AU - Rieder, Rudolf

AU - Anderson, Robert

AU - Bell, James

AU - Brückner, Johannes

AU - Crisp, Joy A.

AU - Christensen, Philip

AU - Clark, Benton C.

AU - De Souza, Paulo A.

AU - Dreibus, Gerlind

AU - D'uston, Claude

AU - Economou, Thanasis

AU - Gorevan, Steven P.

AU - Hahn, Brian C.

AU - Klingelhöfer, Göstar

AU - Mccoy, Timothy J.

AU - Mcsween, Harry Y.

AU - Ming, Douglas W.

AU - Morris, Richard V.

AU - Rodionov, Daniel S.

AU - Squyres, Steven W.

AU - Wänke, Heinrich

AU - Wright, Shawn P.

AU - Wyatt, Michael B.

AU - Yen, Albert S.

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N2 - The Opportunity rover of the Mars Exploration Rover mission encountered an isolated rock fragment with textural, mineralogical, and chemical properties similar to basaltic shergottites. This finding was confirmed by all rover instruments, and a comprehensive study of these results is reported here. Spectra from the miniature thermal emission spectrometer and the Panoramic Camera reveal a pyroxene-rich mineralogy, which is also evident in Mössbauer spectra and in normative mineralogy derived from bulk chemistry measured by the alpha particle X-ray spectrometer. The correspondence of Bounce Rock's chemical composition with the composition of certain basaltic shergottites, especially Elephant Moraine (EET) 79001 lithology B and Queen Alexandra Range (QUE) 94201, is very close, with only Cl, Fe, and Ti exhibiting deviations. Chemical analyses further demonstrate characteristics typical of Mars such as the Fe/Mn ratio and P concentrations. Possible shock features support the idea that Bounce Rock was ejected from an impact crater, most likely in the Meridiani Planum region. Bopolu crater, 19.3km in diameter, located 75km to the southwest could be the source crater. To date, no other rocks of this composition have been encountered by any of the rovers on Mars. The finding of Bounce Rock by the Opportunity rover provides further direct evidence for an origin of basaltic shergottite meteorites from Mars.

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Bounce Rock-A shergottite-like basalt encountered at Meridiani Planum, Mars

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