"Chisel marks" on columnar joint face
An image of the side of a column from columnar joints. The surface is highly irregular, consisting of numerous curved and intersecting fracture surfaces. On many surfaces, clear plumose markings indicate the direction of fracture propagation, with some indicating right to left propagation (as the 4t...
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| Format: | Other/Unknown Material |
| Language: | unknown |
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Oberlin College Library
1997
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| Online Access: | http://server15963.contentdm.oclc.org/u?/p15963coll1,1698 |