Block diagram of the formation of coronae: A mantle plume that pierces the lithosphere causes downgoing crust at its margins (a,b). Weak plumes cannot supply material from the interior of Venus to the surface, leaving behind a different shape (d).
Block diagram of the formation of coronae: A mantle plume that pierces the lithosphere causes downgoing crust at its margins (a,b). Weak plumes cannot supply material from the interior of Venus to the surface, leaving behind a different shape (d) . Researchers used computer simulations to classify the current activity of corona structures on the surface of Venus. To their surprise, they found a previously undiscovered ring of fire on our neighbouring planet. Years ago, planetary researchers discovered unusual circular structures on the surface of Venus when observing high-resolution images from NASA's Magellan mission. Such structures are known as coronae (from the Latin meaning "crowns"; singular: corona). A few years ago, a team of ETH researchers led by Taras Gerya, Professor of Geophysics at the Department of Earth Sciences, used computer models to investigate how these structures may have formed (see ETH News article ).
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