Textures of forsterite-calcite marbles from the Beinn an Dubhaich Aureole, Skye, and implications for the structure of metamorphic porosity

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doi: 10.1144/gsjgs.146.6.0917
Authors:Holness, Marian B.; Bickle, M. J.; Harte, B.
Author Affiliations:Primary:
Univ. Cambridge, Dep. Earth Sci., Cambridge, United Kingdom
Other:
Univ. Edinburgh, United Kingdom
Volume Title:Journal of the Geological Society of London
Source:Journal of the Geological Society of London, 146(6), p.917-920. Publisher: Geological Society of London, London, United Kingdom. ISSN: 0016-7649
Publication Date:1989
Note:In English. 9 refs.; illus. incl. geol. sketch map
Summary:In the aureole of the Tertiary Beinn an Dubhaich granite forsterite grew with dihedral angles of <110 degrees against calcite but was variably annealed towards the equilibrium dihedral angle of 165 degrees . Now experimental estimates of calcite-calcite-fluid dihedral angles, ranging from 50 to 90 degrees, are presented; the early low angles may be due to rapid growth of olivine into a fluid-filled porosity. The interpretation of these results is discussed. [R.A.H.]
Subjects:Aureoles; Calcite; Carbonates; Contact metamorphism; Forsterite; Marbles; Metamorphic rocks; Metamorphism; Nesosilicates; Olivine group; Orthosilicates; Petrology; Porosity; Silicates; Textures; Europe; Great Britain; Hebrides; Highland region Scotland; Inner Hebrides; Inverness-shire Scotland; Isle of Skye; Scotland; United Kingdom; Western Europe; Beinn an Dubhaich Granite
Abstract Numbers:90M/1604
Record ID:1990013274
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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