Geology and structure of Beta Regio, Venus: Results from Arecibo Radar Imaging | Zendy

Senske D. A. | Zendy; Head J. W. | Zendy; Stofan E. R. | Zendy; Campbell D. B. | Zendy

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Geology and structure of Beta Regio, Venus: Results from Arecibo Radar Imaging

Author(s) -

Senske D. A.,

Head J. W.,

Stofan E. R.,

Campbell D. B.

Publication year - 1991

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/91gl01001

Subject(s) - geology , mantle plume , crust , plume , venus , mantle (geology) , geophysics , volcano , radar , seismology , tectonics , astrobiology , lithosphere , meteorology , physics , telecommunications , computer science

Arecibo radar images of a portion of the equatorial region of Venus provide the first high resolution (1.5‐ to 2.0‐ km) synoptic coverage of Beta Regio. Within this area, tessera, a complex deformed terrain, is identified as a major geologic unit with the largest region corresponding to a plateau on the east flank of the highland. Three models are proposed to explain the origin and evolution of Beta Regio and are identified as Mantle Plume/Passive Crust, Mantle Plume/Active Crust , and Mantle Plume/Crustal Spreading. The Mantle Plume/Passive Crust model appears to be the most consistent with the geology in this region and suggests that a plume disrupts a preexisting region of tessera.

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