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GEOREF RECORD

Extension and contraction within volcanically buried impact craters and basins on Mercury

Thomas R. Watters, Sean C. Solomon, Christian Klimczak, Andrew M. Freed, James W. Head, Carolyn M. Ernst, David M. Blair, Timothy A. Goudge and Paul K. Byrne
Extension and contraction within volcanically buried impact craters and basins on Mercury
Geology (Boulder) (December 2012) 40 (12): 1123-1126

Abstract

Orbital images of Mercury obtained by the MESSENGER spacecraft have revealed families of troughs, interpreted to be graben, on volcanic plains material that largely or completely buried preexisting craters and basins. The graben are partially to fully encircled by rings of contractional wrinkle ridges localized over the rims of the buried impact features to form systems of associated contractional and extensional landforms. Most of the buried craters and basins with graben identified to date are located in the extensive volcanic plains that cover much of Mercury's northern high latitudes. The distinctive relationship between wrinkle ridges and graben in buried craters and basins on Mercury is interpreted to be the result of a combination of extensional stresses from cooling and thermal contraction of thick lava flow units and compressional stresses from cooling and contraction of the planet's interior.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 40
Serial Issue: 12
Title: Extension and contraction within volcanically buried impact craters and basins on Mercury
Affiliation: Smithsonian Institution, National Air and Space Museum, Washington, DC, United States
Pages: 1123-1126
Published: 201212
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 21
Accession Number: 2013-010686
Categories: Extraterrestrial geology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: GSA Data Repository item 2012323
Illustration Description: illus. incl. sketch map
Secondary Affiliation: Carnegie Institution of Washington, USA, United StatesPurdue University, USA, United StatesBrown University, USA, United StatesJohns Hopkins University, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 201308
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