Sapas Mons, Venus: evolution of a large shield volcano

  title={Sapas Mons, Venus: evolution of a large shield volcano},
  author={Susan Keddie and James W. Head},
  journal={Earth, Moon, and Planets},
Magellan radar image data of Sapas Mons, a 600 km diameter volcano located on the flanks of the Arla Rise, permit the distinction of widespread volcanic units on the basis of radar properties, morphology, and spatial and inferred temporal relations, each representing a stage or phase in the evolution of the volcano. Six flow units were identified and are arranged asymmetrically about the volcano. Although there is some evidence for overlapping of units, the stratigraphy clearly indicates a… 
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