Evidence for a Diagenetic Origin of Vera Rubin Ridge, Gale Crater, Mars: Summary and Synthesis of Curiosity's Exploration Campaign
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Evidence for a Diagenetic Origin of Vera Rubin Ridge, Gale Crater, Mars : Summary and Synthesis of Curiosity's Exploration Campaign. / Fraeman, A. A.; Edgar, L. A.; Rampe, E. B.; Thompson, L. M.; Frydenvang, J.; Fedo, C. M.; Catalano, J. G.; Dietrich, W. E.; Gabriel, T. S.J.; Vasavada, A. R.; Grotzinger, J. P.; L'Haridon, J.; Mangold, N.; Sun, V. Z.; House, C. H.; Bryk, A. B.; Hardgrove, C.; Czarnecki, S.; Stack, K. M.; Morris, R. V.; Arvidson, R. E.; Banham, S. G.; Bennett, K. A.; Bridges, J. C.; Edwards, C. S.; Fischer, W. W.; Fox, V. K.; Gupta, S.; Horgan, B. H.N.; Jacob, S. R.; Johnson, J. R.; Johnson, S. S.; Rubin, D. M.; Salvatore, M. R.; Schwenzer, S. P.; Siebach, K. L.; Stein, N. T.; Turner, S. M.R.; Wellington, D. F.; Wiens, R. C.; Williams, A. J.; David, G.; Wong, G. M.
In: Journal of Geophysical Research: Planets, Vol. 125, No. 12, e2020JE006527, 2020.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Evidence for a Diagenetic Origin of Vera Rubin Ridge, Gale Crater, Mars
T2 - Summary and Synthesis of Curiosity's Exploration Campaign
AU - Fraeman, A. A.
AU - Edgar, L. A.
AU - Rampe, E. B.
AU - Thompson, L. M.
AU - Frydenvang, J.
AU - Fedo, C. M.
AU - Catalano, J. G.
AU - Dietrich, W. E.
AU - Gabriel, T. S.J.
AU - Vasavada, A. R.
AU - Grotzinger, J. P.
AU - L'Haridon, J.
AU - Mangold, N.
AU - Sun, V. Z.
AU - House, C. H.
AU - Bryk, A. B.
AU - Hardgrove, C.
AU - Czarnecki, S.
AU - Stack, K. M.
AU - Morris, R. V.
AU - Arvidson, R. E.
AU - Banham, S. G.
AU - Bennett, K. A.
AU - Bridges, J. C.
AU - Edwards, C. S.
AU - Fischer, W. W.
AU - Fox, V. K.
AU - Gupta, S.
AU - Horgan, B. H.N.
AU - Jacob, S. R.
AU - Johnson, J. R.
AU - Johnson, S. S.
AU - Rubin, D. M.
AU - Salvatore, M. R.
AU - Schwenzer, S. P.
AU - Siebach, K. L.
AU - Stein, N. T.
AU - Turner, S. M.R.
AU - Wellington, D. F.
AU - Wiens, R. C.
AU - Williams, A. J.
AU - David, G.
AU - Wong, G. M.
PY - 2020
Y1 - 2020
N2 - This paper provides an overview of the Curiosity rover's exploration at Vera Rubin ridge (VRR) and summarizes the science results. VRR is a distinct geomorphic feature on lower Aeolis Mons (informally known as Mount Sharp) that was identified in orbital data based on its distinct texture, topographic expression, and association with a hematite spectral signature. Curiosity conducted extensive remote sensing observations, acquired data on dozens of contact science targets, and drilled three outcrop samples from the ridge, as well as one outcrop sample immediately below the ridge. Our observations indicate that strata composing VRR were deposited in a predominantly lacustrine setting and are part of the Murray formation. The rocks within the ridge are chemically in family with underlying Murray formation strata. Red hematite is dispersed throughout much of the VRR bedrock, and this is the source of the orbital spectral detection. Gray hematite is also present in isolated, gray-colored patches concentrated toward the upper elevations of VRR, and these gray patches also contain small, dark Fe-rich nodules. We propose that VRR formed when diagenetic event(s) preferentially hardened rocks, which were subsequently eroded into a ridge by wind. Diagenesis also led to enhanced crystallization and/or cementation that deepened the ferric-related spectral absorptions on the ridge, which helped make them readily distinguishable from orbit. Results add to existing evidence of protracted aqueous environments at Gale crater and give new insight into how diagenesis shaped Mars' rock record.
AB - This paper provides an overview of the Curiosity rover's exploration at Vera Rubin ridge (VRR) and summarizes the science results. VRR is a distinct geomorphic feature on lower Aeolis Mons (informally known as Mount Sharp) that was identified in orbital data based on its distinct texture, topographic expression, and association with a hematite spectral signature. Curiosity conducted extensive remote sensing observations, acquired data on dozens of contact science targets, and drilled three outcrop samples from the ridge, as well as one outcrop sample immediately below the ridge. Our observations indicate that strata composing VRR were deposited in a predominantly lacustrine setting and are part of the Murray formation. The rocks within the ridge are chemically in family with underlying Murray formation strata. Red hematite is dispersed throughout much of the VRR bedrock, and this is the source of the orbital spectral detection. Gray hematite is also present in isolated, gray-colored patches concentrated toward the upper elevations of VRR, and these gray patches also contain small, dark Fe-rich nodules. We propose that VRR formed when diagenetic event(s) preferentially hardened rocks, which were subsequently eroded into a ridge by wind. Diagenesis also led to enhanced crystallization and/or cementation that deepened the ferric-related spectral absorptions on the ridge, which helped make them readily distinguishable from orbit. Results add to existing evidence of protracted aqueous environments at Gale crater and give new insight into how diagenesis shaped Mars' rock record.
KW - Curiosity
KW - Diagenesis
KW - Hematite
KW - Lacustrine
KW - Mars
UR - http://www.scopus.com/inward/record.url?scp=85089836190&partnerID=8YFLogxK
U2 - 10.1029/2020JE006527
DO - 10.1029/2020JE006527
M3 - Journal article
C2 - 33520561
AN - SCOPUS:85089836190
VL - 125
JO - Journal of Geophysical Research: Solid Earth
JF - Journal of Geophysical Research: Solid Earth
SN - 0148-0227
IS - 12
M1 - e2020JE006527
ER -
ID: 254517934