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Time-temperature evolution of microtextures and contained fluids in a plutonic alkali feldspar during heating

Parsons, Ian; Fitz Gerald, John; Lee, James K W; Ivanic, Tim; Golla-Schindler, Ute

Description

Microtextural changes brought about by heating alkali feldspar crystals from the Shap granite, northern England, at atmospheric pressure, have been studied using transmission and scanning electron microscopy. A typical unheated phenocryst from Shap is composed of about 70 vol% of tweed orthoclase with strain-controlled coherent or semicoherent micro- and crypto-perthitic albite lamellae, with maximum lamellar thicknesses <1 μm. Semicoherent lamellae are encircled by nanotunnel loops in two...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
URI: http://hdl.handle.net/1885/56936
Source: Contributions to Mineralogy and Petrology
DOI: 10.1007/s00410-009-0471-9

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