Imperial College London
Professor Sanjeev Gupta

ProfessorSanjeevGupta

Faculty of Engineering, Department of Earth Science & Engineering

Professor of Earth Science
 
 
 
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Contact

 

+44 (0)20 7594 6527s.gupta

 
 
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Location

 

Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Fraeman:2020:10.1029/2020JE006527,
author = {Fraeman, AA and Edgar, LA and Rampe, EB and Thompson, LM and Frydenvang, J and Fedo, CM and Catalano, JG and Dietrich, WE and Gabriel, TSJ and Vasavada, AR and Grotzinger, JP and L'Haridon, J and Mangold, N and Sun, VZ and House, CH and Bryk, AB and Hardgrove, C and Czarnecki, S and Stack, KM and Morris, RV and Arvidson, RE and Banham, SG and Bennett, KA and Bridges, JC and Edwards, CS and Fischer, WW and Fox, VK and Gupta, S and Horgan, BHN and Jacob, SR and Johnson, JR and Johnson, SS and Rubin, DM and Salvatore, MR and Schwenzer, SP and Siebach, KL and Stein, NT and Turner, SMR and Wellington, DF and Wiens, RC and Williams, AJ and David, G and Wong, GM},
doi = {10.1029/2020JE006527},
journal = {Journal of Geophysical Research: Planets},
pages = {1--34},
title = {Evidence for a diagenetic origin of vera rubin ridge, gale crater, Mars: summary and synthesis of curiosity's exploration campaign},
url = {http://dx.doi.org/10.1029/2020JE006527},
volume = {125},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
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.
AU  - Fraeman,AA
AU  - Edgar,LA
AU  - Rampe,EB
AU  - Thompson,LM
AU  - Frydenvang,J
AU  - Fedo,CM
AU  - Catalano,JG
AU  - Dietrich,WE
AU  - Gabriel,TSJ
AU  - Vasavada,AR
AU  - Grotzinger,JP
AU  - L'Haridon,J
AU  - Mangold,N
AU  - Sun,VZ
AU  - House,CH
AU  - Bryk,AB
AU  - Hardgrove,C
AU  - Czarnecki,S
AU  - Stack,KM
AU  - Morris,RV
AU  - Arvidson,RE
AU  - Banham,SG
AU  - Bennett,KA
AU  - Bridges,JC
AU  - Edwards,CS
AU  - Fischer,WW
AU  - Fox,VK
AU  - Gupta,S
AU  - Horgan,BHN
AU  - Jacob,SR
AU  - Johnson,JR
AU  - Johnson,SS
AU  - Rubin,DM
AU  - Salvatore,MR
AU  - Schwenzer,SP
AU  - Siebach,KL
AU  - Stein,NT
AU  - Turner,SMR
AU  - Wellington,DF
AU  - Wiens,RC
AU  - Williams,AJ
AU  - David,G
AU  - Wong,GM
DO  - 10.1029/2020JE006527
EP  - 34
PY  - 2020///
SN  - 2169-9097
SP  - 1
TI  - Evidence for a diagenetic origin of vera rubin ridge, gale crater, Mars: summary and synthesis of curiosity's exploration campaign
T2  - Journal of Geophysical Research: Planets
UR  - http://dx.doi.org/10.1029/2020JE006527
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000603663400024&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JE006527
UR  - http://hdl.handle.net/10044/1/88962
VL  - 125
ER  -
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