Long landslides on Saturn’s moon
Nature Geoscience
2012년7월30일
Saturn’s icy moon Iapetus displays an abundance of unusually long landslides, reports a study published online in Nature Geoscience this week. Understanding the cause of long landslides on Iapetus could aid in the understanding of unusually long landslides on Earth, which are potentially destructive natural hazards.
Kelsi Singer and colleagues analysed the dimensions of landslides on the surface of Iapetus, using images from the Cassini mission. They detected numerous long landslides, in some cases extending up to 80 km in length. According to their calculations, these long landslides travel farther than expected under normal frictional conditions. They suggest that the sliding of material heats the underlying icy surface, rendering the ground temporarily slippery and allowing the landslide to travel an unusually long distance.
doi: 10.1038/ngeo1526
리서치 하이라이트
-
6월11일
Ecology: Coral reefs could stop net growth by mid-21st centuryCommunications Earth＆Environment
-
6월8일
Economics: 27% of global food expenditure reaches farmersNature Food
-
6월3일
Environment: Temperate lake oxygen levels in declineNature
-
6월1일
Climate change: Heat-related human mortality from anthropogenic climate change assessedNature Climate Change
-
6월1일
Ecology: Coronavirus outbreak risk from hotspots of bat presence and livestockNature Food
-
5월26일
Climate science: Disproportionate exposure to heat stress in US citiesNature Communications
