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The Traigh Bhan na Sgurra Sill, Isle of Mull: Flow localization in a major magma conduit

Abstract:

Field evidence points to localization of magma flowing in a Tertiary doleritic sill on the Isle of Mull, Inner Hebrides, Scotland. Regions of the sill in which flow was short-lived have chilled margins, a narrow or absent metamorphic aureole, and alignment of plagioclase crystals resulting in pronounced, flow-parallel, lineations on fracture surfaces (Type I regions). Prolonged flow resulted in blocky, coarse-grained dolerite with no chilled margins, and an extensive metamorphic aureole (Type...

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Publication status:
Published

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Publisher copy:
10.1093/petrology/egg066

Authors


Holness, MB More by this author
Humphreys, MCS More by this author
Journal:
JOURNAL OF PETROLOGY
Volume:
44
Issue:
11
Pages:
1961-1976
Publication date:
2003-11-05
DOI:
EISSN:
1460-2415
ISSN:
0022-3530
URN:
uuid:dc223bdf-c6e9-4b75-b307-be3342ad6739
Source identifiers:
184867
Local pid:
pubs:184867
Language:
English
Keywords:

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