Martian fluvial conglomerates at gale crater

Williams, R. M. E., Grotzinger, J. P., Dietrich, W. E., Gupta, S., Sumner, D. Y., Wiens, R. C., Mangold, N., Malin, M. C., Edgett, K. S., Maurice, S., Forni, O., Gasnault, O., Ollila, A., Newsom, H. E., Dromart, G., Palucis, M. C., Yingst, R. A., Anderson, R. B., Herkenhoff, K. E., Le Mouélic, S., Goetz, W., Madsen, M. B., Koefoed, A., Jensen, J. K., Bridges, J. C., Schwenzer, S. P., Lewis, K. W., Stack, K. M., Rubin, D., Kah, L. C., Bell III, J. F., Farmer, J. D., Sullivan, R., Van Beek, T., Blaney, D. L., Pariser, O., Deen, R. G., MSL Science Team and Vasconcelos, Paulo (2013) Martian fluvial conglomerates at gale crater. Science, 340 6136: 1068-1072. doi:10.1126/science.1237317

Author Williams, R. M. E.
Grotzinger, J. P.
Dietrich, W. E.
Gupta, S.
Sumner, D. Y.
Wiens, R. C.
Mangold, N.
Malin, M. C.
Edgett, K. S.
Maurice, S.
Forni, O.
Gasnault, O.
Ollila, A.
Newsom, H. E.
Dromart, G.
Palucis, M. C.
Yingst, R. A.
Anderson, R. B.
Herkenhoff, K. E.
Le Mouélic, S.
Goetz, W.
Madsen, M. B.
Koefoed, A.
Jensen, J. K.
Bridges, J. C.
Schwenzer, S. P.
Lewis, K. W.
Stack, K. M.
Rubin, D.
Kah, L. C.
Bell III, J. F.
Farmer, J. D.
Sullivan, R.
Van Beek, T.
Blaney, D. L.
Pariser, O.
Deen, R. G.
MSL Science Team
Vasconcelos, Paulo
Title Martian fluvial conglomerates at gale crater
Journal name Science   Check publisher's open access policy
ISSN 0036-8075
Publication date 2013-05-31
Sub-type Article (original research)
DOI 10.1126/science.1237317
Open Access Status Not yet assessed
Volume 340
Issue 6136
Start page 1068
End page 1072
Total pages 5
Place of publication Washington, DC, United States
Publisher American Association for the Advancement of Science
Language eng
Formatted abstract
Observations by the Mars Science Laboratory Mast Camera (Mastcam) in Gale crater reveal isolated outcrops of cemented pebbles (2 to 40 millimeters in diameter) and sand grains with textures typical of fluvial sedimentary conglomerates. Rounded pebbles in the conglomerates indicate substantial fluvial abrasion. ChemCam emission spectra at one outcrop show a predominantly feldspathic composition, consistent with minimal aqueous alteration of sediments. Sediment was mobilized in ancient water flows that likely exceeded the threshold conditions (depth 0.03 to 0.9 meter, average velocity 0.20 to 0.75 meter per second) required to transport the pebbles. Climate conditions at the time sediment was transported must have differed substantially from the cold, hyper-arid modern environment to permit aqueous flows across several kilometers.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Earth Sciences Publications
Official 2014 Collection
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Citation counts: TR Web of Science Citation Count  Cited 136 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 149 times in Scopus Article | Citations
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Created: Thu, 13 Feb 2014, 02:00:43 EST by Jon Swabey on behalf of School of Earth Sciences