Evidence for a Diagenetic Origin of Vera Rubin Ridge, Gale Crater, Mars: Summary and Synthesis of Curiosity 's Exploration Campaign
نویسندگان
چکیده
منابع مشابه
Gale crater: the Mars Science Laboratory/ Curiosity Rover Landing Site
Gale crater formed from an impact on Mars *3.6 billion years ago. It hosts a central mound nearly 100 km wide and *5 km high, consisting of layered rocks with a variety of textures and spectral properties. The oldest exposed layers contain variably hydrated sulphates and smectite clay minerals, implying an aqueous origin, whereas the younger layers higher on themound are covered by amantle of d...
متن کاملCuriosity at Gale crater, Mars: characterization and analysis of the Rocknest sand shadow.
The Rocknest aeolian deposit is similar to aeolian features analyzed by the Mars Exploration Rovers (MERs) Spirit and Opportunity. The fraction of sand <150 micrometers in size contains ~55% crystalline material consistent with a basaltic heritage and ~45% x-ray amorphous material. The amorphous component of Rocknest is iron-rich and silicon-poor and is the host of the volatiles (water, oxygen,...
متن کاملEvidence for indigenous nitrogen in sedimentary and aeolian deposits from the Curiosity rover investigations at Gale crater, Mars.
The Sample Analysis at Mars (SAM) investigation on the Mars Science Laboratory (MSL) Curiosity rover has detected oxidized nitrogen-bearing compounds during pyrolysis of scooped aeolian sediments and drilled sedimentary deposits within Gale crater. Total N concentrations ranged from 20 to 250 nmol N per sample. After subtraction of known N sources in SAM, our results support the equivalent of 1...
متن کاملMars atmosphere. Mars methane detection and variability at Gale crater.
Reports of plumes or patches of methane in the martian atmosphere that vary over monthly time scales have defied explanation to date. From in situ measurements made over a 20-month period by the tunable laser spectrometer of the Sample Analysis at Mars instrument suite on Curiosity at Gale crater, we report detection of background levels of atmospheric methane of mean value 0.69 ± 0.25 parts pe...
متن کاملMars Science Laboratory Curiosity Rover Megaripple Crossings up to Sol 710 in Gale Crater
Raymond E. Arvidson McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, Missouri 63130 e-mail: [email protected] Karl D. Iagnemma Robotic Mobility Group, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 e-mail: [email protected] Mark Maimone California Institute of Technology/ Jet Propulsion L...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Planets
سال: 2020
ISSN: 2169-9097,2169-9100
DOI: 10.1029/2020je006527