Columnar structure and desiccation cracks
نویسندگان
چکیده
منابع مشابه
Evolving fracture patterns: columnar joints, mud cracks and polygonal terrain.
When cracks form in a thin contracting layer, they sequentially break the layer into smaller and smaller pieces. A rectilinear crack pattern encodes information about the order of crack formation, as later cracks tend to intersect with earlier cracks at right angles. In a hexagonal pattern, in contrast, the angles between all cracks at a vertex are near 120 degrees. Hexagonal crack patterns are...
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ژورنال
عنوان ژورنال: The Journal of the Geological Society of Japan
سال: 2011
ISSN: 0016-7630,1349-9963
DOI: 10.5575/geosoc.117.183