www.space.com —
South polar layered deposits (SPLD) on Mars show repeated deposition and erosion, in this HiRISE image taken by the Mars Reconnaissance Orbiter.
The deposits represent an accumulation of largely water ice and dust, not unlike the ice caps in Greenland and Antarctica. Together with the north polar layered deposits, the SPLD represent a record of global climate change on Mars.
The bottom of this image shows layering cut off by deposits which partially fill two broad valleys, the latter probably cut into the SPLD by wind erosion. Other more recent deposits appear to cover the upper part of the SPLD at left, but erosion there has also expose layering within them.
South polar layered deposits (SPLD) on Mars show repeated deposition and erosion, in this HiRISE image taken by the Mars Reconnaissance Orbiter.
The deposits represent an accumulation of largely water ice and dust, not unlike the ice caps in Greenland and Antarctica. Together with the north polar layered deposits, the SPLD represent a record of global climate change on Mars.
The bottom of this image shows layering cut off by deposits which partially fill two broad valleys, the latter probably cut into the SPLD by wind erosion. Other more recent deposits appear to cover the upper part of the SPLD at left, but erosion there has also expose layering within them.
Added:
12 months ago
Current Club:
Space
|
Fetching Information from Servers ....
1 :
Media RSS
