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The near-solidus transition from garnet lherzolite to spinel lherzolite

Klemme, S; O'Neill, Hugh


The position of the transition from spinel lherzolite to garnet lherzolite in the system CaO-MgO-Al2O3-SiO2 (CMAS) has been determined experimentally at near-solidus temperatures. In reversed experiments, the transition occurs between 18 and 20 kbar at 1200 °C and between 26 and 27 kbar at 1500 °C, corresponding to higher pressures than previously envisaged. A position for the transition deeper within the Earth further complicates the explanation of the so-called garnet signatures in the trace...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
Source: Contributions to Mineralogy and Petrology


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