scholarly journals Impact generated porosity in Gale crater and implications for the density of sedimentary rocks in lower Aeolis Mons

Icarus ◽  
2021 ◽  
pp. 114539
Author(s):  
B.C. Johnson ◽  
R.E. Milliken ◽  
K.W. Lewis ◽  
G.S. Collins
Keyword(s):  
Sedimentary Rocks ◽  
Gale Crater

A surface gravity traverse on Mars indicates low bedrock density at Gale crater

Science ◽  
2019 ◽  
Vol 363 (6426) ◽  
pp. 535-537 ◽  
Author(s):  
Kevin W. Lewis ◽  
Stephen Peters ◽  
Kurt Gonter ◽  
Shaunna Morrison ◽  
Nicholas Schmerr ◽  
...  
Keyword(s):  
Gravitational Field ◽  
Precise Measurement ◽  
Attitude Determination ◽  
Sedimentary Rocks ◽  
Gravitational Acceleration ◽  
High Porosity ◽  
Rock Density ◽  
Gravitational Fields ◽  
Gale Crater ◽  
Curiosity Rover

Gravimetry, the precise measurement of gravitational fields, can be used to probe the internal structure of Earth and other planets. The Curiosity rover on Mars carries accelerometers normally used for navigation and attitude determination. We have recalibrated them to isolate the signature of the changing gravitational acceleration as the rover climbs through Gale crater. The subsurface rock density is inferred from the measured decrease in gravitational field strength with elevation. The density of the sedimentary rocks in Gale crater is 1680 ± 180 kilograms per cubic meter. This value is lower than expected, indicating a high porosity and constraining maximum burial depths of the rocks over their history.

scholarly journals Sorting out compositional trends in sedimentary rocks of the Bradbury group (Aeolis Palus), Gale crater, Mars

2017 ◽  
Vol 122 (2) ◽  
pp. 295-328 ◽  
Author(s):  
K. L. Siebach ◽  
M. B. Baker ◽  
J. P. Grotzinger ◽  
S. M. McLennan ◽  
R. Gellert ◽  
...  
Keyword(s):  
Sedimentary Rocks ◽  
Gale Crater

scholarly journals Chemical alteration of fine-grained sedimentary rocks at Gale crater

Icarus ◽  
2019 ◽  
Vol 321 ◽  
pp. 619-631 ◽  
Author(s):  
N. Mangold ◽  
E. Dehouck ◽  
C. Fedo ◽  
O. Forni ◽  
C. Achilles ◽  
...  
Keyword(s):  
Sedimentary Rocks ◽  
Chemical Alteration ◽  
Gale Crater ◽  
Fine Grained

scholarly journals Extraformational sediment recycling on Mars

Geosphere ◽  
2020 ◽  
Vol 16 (6) ◽  
pp. 1508-1537
Author(s):  
Kenneth S. Edgett ◽  
Steven G. Banham ◽  
Kristen A. Bennett ◽  
Lauren A. Edgar ◽  
Christopher S. Edwards ◽  
...  
Keyword(s):  
Calcium Sulfate ◽  
Sedimentary Rock ◽  
Sedimentary Rocks ◽  
Fundamental Aspect ◽  
Geological Record ◽  
Physical Weathering ◽  
Gale Crater ◽  
Weathering Processes ◽  
Curiosity Rover

Abstract Extraformational sediment recycling (old sedimentary rock to new sedimentary rock) is a fundamental aspect of Earth’s geological record; tectonism exposes sedimentary rock, whereupon it is weathered and eroded to form new sediment that later becomes lithified. On Mars, tectonism has been minor, but two decades of orbiter instrument–based studies show that some sedimentary rocks previously buried to depths of kilometers have been exposed, by erosion, at the surface. Four locations in Gale crater, explored using the National Aeronautics and Space Administration’s Curiosity rover, exhibit sedimentary lithoclasts in sedimentary rock: At Marias Pass, they are mudstone fragments in sandstone derived from strata below an erosional unconformity; at Bimbe, they are pebble-sized sandstone and, possibly, laminated, intraclast-bearing, chemical (calcium sulfate) sediment fragments in conglomerates; at Cooperstown, they are pebble-sized fragments of sandstone within coarse sandstone; at Dingo Gap, they are cobble-sized, stratified sandstone fragments in conglomerate derived from an immediately underlying sandstone. Mars orbiter images show lithified sediment fans at the termini of canyons that incise sedimentary rock in Gale crater; these, too, consist of recycled, extraformational sediment. The recycled sediments in Gale crater are compositionally immature, indicating the dominance of physical weathering processes during the second known cycle. The observations at Marias Pass indicate that sediment eroded and removed from craters such as Gale crater during the Martian Hesperian Period could have been recycled to form new rock elsewhere. Our results permit prediction that lithified deltaic sediments at the Perseverance (landing in 2021) and Rosalind Franklin (landing in 2023) rover field sites could contain extraformational recycled sediment.

scholarly journals Mineralogy and geochemistry of sedimentary rocks and eolian sediments in Gale crater, Mars: A review after six Earth years of exploration with Curiosity

Geochemistry ◽  
2020 ◽  
Vol 80 (2) ◽  
pp. 125605 ◽  
Author(s):  
E.B. Rampe ◽  
D.F. Blake ◽  
T.F. Bristow ◽  
D.W. Ming ◽  
D.T. Vaniman ◽  
...  
Keyword(s):  
Sedimentary Rocks ◽  
Gale Crater ◽  
Eolian Sediments

scholarly journals Curiosity Rover Mars Hand Lens Imager (MAHLI) Views of the Sediments and Sedimentary Rocks of Gale Crater, Mars

2017 ◽  
Vol 23 (S1) ◽  
pp. 2142-2143
Author(s):  
Kenneth S. Edgett ◽  
R. Aileen Yingst ◽  
Michelle E. Minitti ◽  
Megan R. Kennedy ◽  
Gillian M. Krezoski ◽  
...  
Keyword(s):  
Sedimentary Rocks ◽  
Gale Crater ◽  
Curiosity Rover

scholarly journals Elemental Geochemistry of Sedimentary Rocks at Yellowknife Bay, Gale Crater, Mars

Science ◽  
2013 ◽  
Vol 343 (6169) ◽  
pp. 1244734-1244734 ◽  
Author(s):  
S. M. McLennan ◽  
R. B. Anderson ◽  
J. F. Bell ◽  
J. C. Bridges ◽  
F. Calef ◽  
...  
Keyword(s):  
Sedimentary Rocks ◽  
Elemental Geochemistry ◽  
Gale Crater

scholarly journals The potassic sedimentary rocks in Gale Crater, Mars, as seen by ChemCam on boardCuriosity

2016 ◽  
Vol 121 (5) ◽  
pp. 784-804 ◽  
Author(s):  
L. Le Deit ◽  
N. Mangold ◽  
O. Forni ◽  
A. Cousin ◽  
J. Lasue ◽  
...  
Keyword(s):  
Sedimentary Rocks ◽  
Gale Crater
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