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MEVTV Workshop on Tectonic Features on MarsThe state of knowledge of tectonic features on Mars was determined and kinematic and mechanical models were assessed for their origin. Three sessions were held: wrinkle ridges and compressional structure; strike-slip faults; and extensional structures. Each session began with an overview of the features under discussion. In the case of wrinkle ridges and extensional structures, the overview was followed by keynote addresses by specialists working on similar structures on the Earth. The first session of the workshop focused on the controversy over the relative importance of folding, faulting, and intrusive volcanism in the origin of wrinkle ridges. The session ended with discussions of the origin of compressional flank structures associated with Martian volcanoes and the relationship between the volcanic complexes and the inferred regional stress field. The second day of the workshop began with the presentation and discussion of evidence for strike-slip faults on Mars at various scales. In the last session, the discussion of extensional structures ranged from the origin of grabens, tension cracks, and pit-crater chains to the origin of Valles Marineris canyons. Shear and tensile modes of brittle failure in the formation of extensional features and the role of these failure modes in the formation of pit-crater chains and the canyons of Valles Marineris were debated. The relationship of extensional features to other surface processes, such as carbonate dissolution (karst) were also discussed.
Document ID
19900018293
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Watters, Thomas R. (Lunar and Planetary Inst. Houston, TX, United States)
Golombek, Matthew P. (Lunar and Planetary Inst. Houston, TX, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1989
Subject Category
Lunar And Planetary Exploration
Report/Patent Number
NASA-CR-186143
NAS 1.26:186143
LPI-TR-89-06
Report Number: NASA-CR-186143
Report Number: NAS 1.26:186143
Report Number: LPI-TR-89-06
Accession Number
90N27609
Funding Number(s)
CONTRACT_GRANT: NASW-4066
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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