This is an example of Venus volcanism.
Click on image for full size
Volcanic rises are thought to be formed by plumes, in a similar fashion to island formation on Earth. On Venus, there are three types of volcanic rises:
- These are rises that contain two or more deep rift valleys. These valleys cut through most of the rise itself, but also extend several hundred kilometers beyond the rise itself. Atla Regio and Beta Regio are rift-dominated rises.
- Volcano-Dominated Rises
- These rises lack deep rift valleys. They do contain one or more large shield volcanoes. Western Eistla Regio and Imdr Regio are volcano-dominated rises.
- Corona-Dominated Rises
- These rises lack large rift valleys, like volcano-dominated rises. But instead of being dominated by shield volcanoes, their surfaces are dominated by coronae. Corona-dominated rises include Eastern Eistla Regio and Themis Regio.
Shop Windows to the Universe Science Store!
Our online store
includes issues of NESTA's quarterly journal, The Earth Scientist
, full of classroom activities on different topics in Earth and space science, ranging from seismology
, rocks and minerals
, and Earth system science
You might also be interested in:
What types of instructional experiences help K-8 students learn science with understanding? What do science educators teachers, teacher leaders, science specialists, professional development staff, curriculum designers, school administrators need to know to create and support such experiences?...more
Beta Regio and Atla Regio are examples of what is known as a volcanic rise. Volcanic rises are broad, sloping highlands over 1000 km across. They are cut by deep troughs 100-200 km across. These troughs...more
Shield volcanoes can grow to be very big. In fact, the oldest continental regions of Earth may be the remains of ancient shield volcanoes. Unlike the composite volcanoes which are tall and thin, shield...more
The feature of Venus' topography called a "Corona" is a deep, curving, trench surrounding an elevated plain. Coronae is the plural term for corona. This is an image of Artemis Corona which is found on...more
This image, taken from the Mars Global Surveyor mission (MGS), shows the Tharsis Ridge, the green/blue area in the middle of the picture, as well as a portion of the southern hemisphere of Mars. The green...more
Alpha Regio and Ovda Regio are examples of what is known as a "Plateau Highland" of Venus. Among the volcanic features of Alpha Regio is Eve Mons. Unlike volcanic rises, plateau highlands have few volcanoes,...more
Aphrodite Terra, the Greek name for the goddess Venus, is about half the size of the African continent, and is to be found along Venus' equator. Aphrodite Terra is different from Ishtar Terra in that,...more