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The olivines of the Garbh Eilean sill, Shiant isles

R. Johnston
The olivines of the Garbh Eilean sill, Shiant isles
Geological Magazine (1953) 90 (3): 161-171


The investigation of the olivines in the picrite, picrodolerite, and crinanite of the Garbh Eilean sill is part of a research program on the geochemistry and petrology of the rocks of the Shiant isles, situated 20 miles off the west coast of Scotland. Optical and chemical work on specimens from a section of the sill, extending from sea level up to 395 feet, shows that the olivines in the upper picrodolerite and the crinanite are zoned, the range of zoning and the iron content increasing with height.

ISSN: 0016-7568
EISSN: 1469-5081
Coden: GEMGA4
Serial Title: Geological Magazine
Serial Volume: 90
Serial Issue: 3
Title: The olivines of the Garbh Eilean sill, Shiant isles
Author(s): Johnston, R.
Pages: 161-171
Published: 1953
Text Language: English
Publisher: Cambridge University Press, London, United Kingdom
Accession Number: 1953-002334
Categories: Mineralogy
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
N54°40'00" - N61°00'00", W08°30'00" - W00°45'00"
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States
Update Code: 1953
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