Melt-solid dihedral angles of common minerals in natural rocks.

Holness, M. B. (2006) Melt-solid dihedral angles of common minerals in natural rocks. Journal of Petrology, 47. pp. 791-800. DOI https://doi.org/10.1093/petrology/egi094

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Abstract

The melt–solid dihedral angle has been measured in a range of igneous rock types, ranging in composition from picrite, through basalt, phonolite, andesite and rhyolite, for the minerals quartz, leucite, plagioclase, olivine, amphibole and clinopyroxene. Populations of up to 104 true 3-D angles were measured in each sample using a universal stage mounted on an optical microscope. The median and standard deviation of the angle populations for each mineral are distinct (plagioclase 25, with standard deviation (SD) 11; clinopyroxene 38, with SD 14; olivine 29, with SD 13; quartz 18, with SD 9; leucite 20, with SD 11), with no control by either melt composition or degree of approach of the grains to their equilibrium shapes.

Item Type: Article
Uncontrolled Keywords: 2006 AREP IA49 IA50 2006 P
Divisions: 05 - Petrology - Igneous, Metamorphic and Volcanic Studies
Journal or Publication Title: Journal of Petrology
Volume: 47
Page Range: pp. 791-800
Identification Number: https://doi.org/10.1093/petrology/egi094
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:02
Last Modified: 23 Jul 2013 10:07
URI: http://eprints.esc.cam.ac.uk/id/eprint/394

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