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Venus records a rich early history.
- Source :
-
Geology . Apr2010, Vol. 38 Issue 4, p311-314. 4p. 1 Map. - Publication Year :
- 2010
-
Abstract
- The distribution and character of Venus's impact craters led to the widely accepted idea that Venus underwent global catastrophic resurfacing ca. 500 Ma, and thus Venus records only a short history, encompassing surface evolution since postulated catastrophic resurfacing. Ribbon tessera terrain (RTT), a structurally distinctive unit, represents some of Venus's oldest surfaces, and is widely accepted as forming prior to postulated global catastrophic resurfacing. We constructed a global geologic map of RTT unit exposures and structural trends using National Aeronautics and Space Administration (NASA) Magellan data. Map relations illustrate that RTT displays planet-scale patterns that, together with altimetry, record a rich geologic history that predates proposed global catastrophic resurfacing. [ABSTRACT FROM AUTHOR]
- Subjects :
- *VENUSIAN geology
*PLATE tectonics
*GEOLOGICAL formations
*STRUCTURAL geology
Subjects
Details
- Language :
- English
- ISSN :
- 00917613
- Volume :
- 38
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Geology
- Publication Type :
- Academic Journal
- Accession number :
- 49240620
- Full Text :
- https://doi.org/10.1130/G30587.1