The team used observations made by a Magellan probe that orbited Venus from 1990 to 1994 and mapped its surface using radar. The features it has discovered have been analyzed earlier, but new research uses a new computer model that can recognize surface deformations that exhibit large block structures in the lithosphere. Each of these blocks was about the size of Alaska and seemed to slowly hit each other like the drift ice of a pond or lake.
This is quite different from the current type of plate tectonics on Earth. However, if confirmed, it is nevertheless evidence of heat flow and molten matter inside Venus, something that has never been observed before. The authors find that similarities to Archean geology (2.5-4 billion years ago) may be a transition from the early days of Venus’ plate tectonics, where the “drift ice” pattern was more Earth-like. I think it suggests that there is sex.
The movement “spreads throughout the lowlands of Venus, advocating a previously unrecognized style of global tectonics,” said Columbia University’s research scientist and co-author of a new study. Sean Solomon said.
The findings only fuel more excitement behind the new Venus mission recently approved by NASA and the European Space Agency. Solomon says he and his team hope that all three can provide “important data for testing the ideas described in our treatise.” These missions aren’t ready to start until the end of the decade, so hopefully the excitement won’t diminish in the next few years.
Scientists may have discovered structural activity within Venus
Source link Scientists may have discovered structural activity within Venus