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C.K. Shearer
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Journal Article

Developing vanadium valence state oxybarometers (spinel-melt, olivine-melt, spinel-olivine) and V/(Cr+Al) partitioning (spinel-melt) for martian olivine-phyric basalts

J.J. Papike, P.V. Burger, A.S. Bell, L. Le, C.K. Shearer, S.R. Sutton, J. Jones, M. Newville
Published: 01 November 2013
American Mineralogist (2013) 98 (11-12): 2193–2196.
DOI: https://doi.org/10.2138/am.2013.4622
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Direct determination of europium valence state by XANES in extraterrestrial merrillite: Implications for REE crystal chemistry and martian magmatism

C.K. Shearer, J.J. Papike, P.V. Burger, S.R. Sutton, F.M. McCubbin, M. Newville
Published: 01 August 2011
American Mineralogist (2011) 96 (8-9): 1418–1421.
DOI: https://doi.org/10.2138/am.2011.3860
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Sulfides from martian and lunar basalts: Comparative chemistry for Ni, Co, Cu, and Se

J.J. Papike, P.V. Burger, C.K. Shearer, S.R. Sutton, M. Newville, Y. Choi, A. Lanzirotti
Published: 01 May 2011
American Mineralogist (2011) 96 (5-6): 932–935.
DOI: https://doi.org/10.2138/am.2011.3724
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Partitioning of Eu between augite and a highly spiked martian basalt composition as a function of oxygen fugacity (IW−1 to QFM): Determination of Eu 2+ /Eu 3+ ratios by XANES

J.M. Karner, J.J. Papike, S.R. Sutton, P.V. Burger, C.K. Shearer, L. Le, M. Newville, Y. Choi
Published: 01 February 2010
American Mineralogist (2010) 95 (2-3): 410–413.
DOI: https://doi.org/10.2138/am.2010.3394
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A unique glimpse into asteroidal melting processes in the early solar system from the Graves Nunatak 06128/06129 achondrites

C.K. Shearer, P.V. Burger, C.R. Neal, Z. Sharp, L.E. Borg, L. Spivak-Birndorf, M. Wadhwa, J.J. Papike, J.M. Karner, A.M. Gaffney, J. Shafer, B.P. Weiss, J. Geissman, V.A. Fernandes
Published: 01 November 2008
American Mineralogist (2008) 93 (11-12): 1937–1940.
DOI: https://doi.org/10.2138/am.2008.3056
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Valence state partitioning of Cr between pyroxene-melt: Effects of pyroxene and melt composition and direct determination of Cr valence states by XANES. Application to Martian basalt QUE 94201 composition

J.M. Karner, J.J. Papike, S.R. Sutton, C.K. Shearer, G. McKay, L. Le, P. Burger
Published: 01 November 2007
American Mineralogist (2007) 92 (11-12): 2002–2005.
DOI: https://doi.org/10.2138/am.2007.2724
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Valence state partitioning of Cr and V between pyroxene-melt: Estimates of oxygen fugacity for martian basalt QUE 94201

J.M. Karner, J.J. Papike, C.K. Shearer, G. McKay, L. Le, P. Burger
Published: 01 July 2007
American Mineralogist (2007) 92 (7): 1238–1241.
DOI: https://doi.org/10.2138/am.2007.2607
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Terrestrial analogs of martian jarosites: Major, minor element systematics and Na-K zoning in selected samples

J.J. Papike, P.V. Burger, J.M. Karner, C.K. Shearer, V.W. Lueth
Published: 01 February 2007
American Mineralogist (2007) 92 (2-3): 444–447.
DOI: https://doi.org/10.2138/am.2007.2442
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The behavior of Li and B in lunar mare basalts during crystallization, shock, and thermal metamorphism: Implications for volatile element contents of martian basalts

J. Chaklader, C.K. Shearer, L.E. Borg
Published: 01 October 2006
American Mineralogist (2006) 91 (10): 1553–1564.
DOI: https://doi.org/10.2138/am.2006.2088
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Pyroxene europium valence oxybarometer: Effects of pyroxene composition, melt composition, and crystallization kinetics

C.K. Shearer, J.J. Papike, J.M. Karner
Published: 01 October 2006
American Mineralogist (2006) 91 (10): 1565–1573.
DOI: https://doi.org/10.2138/am.2006.2098
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Comparative planetary mineralogy: Pyroxene major- and minor-element chemistry and partitioning of vanadium between pyroxene and melt in planetary basalts

Jim Karner, J.J. Papike, C.K. Shearer
Published: 01 October 2006
American Mineralogist (2006) 91 (10): 1574–1582.
DOI: https://doi.org/10.2138/am.2006.2103
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Journal Article

Valence state partitioning of vanadium between olivine-liquid: Estimates of the oxygen fugacity of Y980459 and application to other olivine-phyric martian basalts

C.K. Shearer, G. McKay, J.J. Papike, J.M. Karner
Published: 01 October 2006
American Mineralogist (2006) 91 (10): 1657–1663.
DOI: https://doi.org/10.2138/am.2006.2155
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Terrestrial analogs of martian sulfates: Major and minor element systematics of alunite–jarosite from Goldfield, Nevada

J.J. Papike, J.M. Karner, M.N. Spilde, C.K. Shearer
Published: 01 July 2006
American Mineralogist (2006) 91 (7): 1197–1200.
DOI: https://doi.org/10.2138/am.2006.2257
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Comparative planetary mineralogy: Valence state partitioning of Cr, Fe, Ti, and V among crystallographic sites in olivine, pyroxene, and spinel from planetary basalts

J.J. Papike, J.M. Karner, C.K. Shearer
Published: 01 February 2005
American Mineralogist (2005) 90 (2-3): 277–290.
DOI: https://doi.org/10.2138/am.2005.1779
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Comparative planetary mineralogy: V/(Cr + Al) systematics in chromite as an indicator of relative oxygen fugacity

J.J. Papike, J.M. Karner, C.K. Shearer
Published: 01 October 2004
American Mineralogist (2004) 89 (10): 1557–1560.
DOI: https://doi.org/10.2138/am-2004-1027
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Plagioclase from planetary basalts: Chemical signatures that reflect planetary volatile budgets, oxygen fugacity, and styles of igneous differentiation

Jim Karner, J.J. Papike, C.K. Shearer
Published: 01 July 2004
American Mineralogist (2004) 89 (7): 1101–1109.
DOI: https://doi.org/10.2138/am-2004-0723
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Olivine from planetary basalts: Chemical signatures that indicate planetary parentage and those that record igneous setting and process

Jim Karner, JJ. Papike, C.K. Shearer
Published: 01 May 2003
American Mineralogist (2003) 88 (5-6): 806–816.
DOI: https://doi.org/10.2138/am-2003-5-609
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Determination of planetary basalt parentage: A simple technique using the electron microprobe

J.J. Papike, J. M Karner, C.K. Shearer
Published: 01 February 2003
American Mineralogist (2003) 88 (2-3): 469–472.
DOI: https://doi.org/10.2138/am-2003-2-323
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Trace-element partitioning between immiscible lunar melts: An example from naturally occurring lunar melt inclusions

C.K. Shearer, J.J. Papike, M.N. Spilde
Published: 01 March 2001
American Mineralogist (2001) 86 (3): 238–246.
DOI: https://doi.org/10.2138/am-2001-2-305
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