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The central uplift of Ritchey crater, Mars

Authors
  • Sarah S, Mattson
  • Chris H, Okubo
  • Matthew, Chojnacki
  • Livio Leonardo Tornabene
  • Ning, Ding
  • Veronica J, Bray
  • Alfred S, Mcewen
Type
Published Article
Journal
Icarus
Publisher
Elsevier
Publication Date
May 14, 2015
Volume
252
Pages
255–270
Source
SETI Institute
License
Unknown

Abstract

Ritchey crater is a∼ 79 km diameter complex crater near the boundary between Hesperian ridged plains and Noachian highland terrain on Mars (28.8 S, 309.0 E) that formed after the Noachian. High Resolution Imaging Science Experiment (HiRISE) images of the central peak reveal fractured massive bedrock and megabreccia with large clasts. Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) spectral analysis reveals low calcium pyroxene (LCP), olivine (OL), hydrated silicates (phyllosilicates) and a ...

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