Devana Chasma

Devana Chasma
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Devana Chasma, middle. Theia Mons, a major shield volcano, is at the bottom left
Coordinates22°00′N 183°30′E / 22°N 183.5°E / 22; 183.5
Diameter2000 km
EponymDevana

Devana Chasma is a weak extensional rift zone on Venus, with a length of 4000 km, a width of 150–250 km, and a depth reaching 5 km. Most of the faults are facing north–south. The rift is located in Beta Regio, a 3000 km rise created by volcanic activity. Mantle plumes rising from the bottom are the reason behind the formation of the rift zone. The slow extension rates in the rift may be driven by the same reason.[1][2][3]

  1. ^ Kiefer, W. S., and L. C. Swafford. "Topographic Analysis Of Devana Chasma, Venus; Implications For Rift System Segmentation And Propagation." Journal of Structural Geology 28.12 (2006): 2144–2155. GeoRef. Web. 27 Feb. 2014.
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