Observation of the geology and geomorphology of the 1999 Marsokhod test site

Journal of Geophysical Research E: Planets
By: , and 

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Abstract

The Marsokhod rover returned data from six stations that were used to decipher the geomorphology and geology of a region not previously visited by members of the geomorphology field team. Satellite images and simulated descent images provided information about the regional setting. The landing zone was on an alluvial apron flanking a mountain block to the west and a playa surface to the east. Rover color images, infrared spectra analysis of the mountains, and the apron surface provided insight into the rock composition of the nearby mountains. From the return data the geomorphology team interpreted the region to consist of compressionally deformed, ancient marine sediments and igneous rocks exposed by more recent extensional tectonics. Unconsolidated alluvial materials blanket the lower flanks of the mountains. An ancient shoreline cut into alluvial material marks a high stand of water during a past, wetter climate period. Playa sediments floor a present-day, seasonally, dry lake. Observations made by the rover using panoramic and close-up (hand specimens-scale) image data and color scene data confirmed the presence of boulders, cobbles, and fines of various provinces. Rover traverses to sites identified as geologically distinct, such as fan, channel, shoreline, and playa, provided useful clues to the geologic interpretations. Analysis of local rocks was given context only through comparison with distant geologic features. These results demonstrated the importance of a multifaceted approach to site interpretation through comparison of interpretations derived by differing geologic techniques.

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Publication type Article
Publication Subtype Journal Article
Title Observation of the geology and geomorphology of the 1999 Marsokhod test site
Series title Journal of Geophysical Research E: Planets
DOI 10.1029/1999JE001167
Volume 106
Issue E4
Year Published 2001
Language English
Publisher American Geophysical Union
Description 18 p.
First page 7665
Last page 7682
Country United States
State California
Other Geospatial Mojave Desert
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