"Chisel marks" on columnar joint face
The sides of any columns in columnar jointing do not form a single uniform fracture, rather they grow incrementally. Each subhorizontal fracture increment, known as a "chisel mark," has its own fracture surface markings that indicate the direction of growth of that fracture. Most fractures...
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Format: | Other/Unknown Material |
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Oberlin College Library
1997
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Online Access: | http://server15963.contentdm.oclc.org/u?/p15963coll1,1697 |