Formation of columnar basalt jointing resembles mud cracks
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Type: | GIF image |
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Description: | Mudcracks form when muddy sediment is exposed to the atmosphere and dries up. They have a characteristic polygonal shape when viewed from above, http://www.umt.edu/geosciences/faculty/hendrix/g100/L6B.html. How is this process similar for cooling basalt? |
Uploaded by: | MaryAnn McGarry |
Created: | Monday, 24 October 2011, 7:34 AM |
Last modified: | Tuesday, 25 October 2011, 11:24 AM |
Size: | 407.7K (417464 bytes) |
Download: | Download |