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The formation of columnar joints produced by cooling in basalt at Staffa, Scotland

Abstract:

Columnar jointing in basaltic lava flows on the island of Staffa, NW Scotland, was studied using a combination of field mapping and measurement of column dimensions, sample petrology and measurements of plagioclase crystal size distributions (CSDs) interpreted using theoretical models of cooling. Four different lava flow units were measured, and column ordering was assessed using the hexagonality index and relative standard deviations of column side length, top area and internal angle. Upper ...

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Publisher copy:
10.1007/s00445-013-0715-4

Authors


Phillips, JC More by this author
Humphreys, MCS More by this author
Daniels, KA More by this author
Journal:
Bulletin of Volcanology
Volume:
75
Issue:
6
Pages:
1-17
Publication date:
2013-06-05
DOI:
EISSN:
1432-0819
ISSN:
0258-8900
URN:
uuid:47e846e2-3d70-46fd-95c5-85cb97ea0dde
Source identifiers:
406322
Local pid:
pubs:406322

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