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This is an example of Venus volcanism.
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NASA/JPL

Volcanic Rises

Volcanic rises are more like islands than a continents. They are thought to be formed by plumes, in a similar fashion to island formation on Earth. Measurements suggest that there is hot magma deep beneath these rises which, through heat, help to hold up the rises and support their mountains, as shown in this picture.

There are three types of volcanic rises:

  • Rift-Type Rises
    • These are rises that contain two or more deep rift valleys. Beta Regio is an example of a rift-dominated rise.
  • Volcano-Type Rises
  • Corona-Type Rises
    • These rises lack large rift valleys, like volcano-Type rises. But instead of having many shield volcanoes, these rises have many coronae.


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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA