Tectonic implications of graphitized diamonds from the Ronda peridotite massif, southern Spain

G. R. Davies, P. H. Nixon, D. G. Pearson, M. Obata

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Octahedral graphite aggregates are present in garnet pyroxenites from the Ronda peridotite massif, southern Spain. In the aggregates, basal {0001} planes of graphite are parallel to {111} of the octahedra, demonstrating that the graphite is pseudomorphic after a cubic mineral. The aggregates contain clinopyroxene inclusions that have a morphology atypical of a monoclinic phase demonstrating that the precursor diamond has imposed a cubic symmetry. A tectonic model is proposed to explain how diamond-facies rocks were emplaced into the crust on both sides of an orogen. -from Authors

Original languageEnglish
Pages (from-to)471-474
Number of pages4
JournalGeology
Volume21
Issue number5
DOIs
Publication statusPublished - 1 Jan 1993

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peridotite
graphite
diamond
tectonics
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symmetry
garnet
crust
mineral
rock

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Davies, G. R. ; Nixon, P. H. ; Pearson, D. G. ; Obata, M. / Tectonic implications of graphitized diamonds from the Ronda peridotite massif, southern Spain. In: Geology. 1993 ; Vol. 21, No. 5. pp. 471-474.
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Tectonic implications of graphitized diamonds from the Ronda peridotite massif, southern Spain. / Davies, G. R.; Nixon, P. H.; Pearson, D. G.; Obata, M.

In: Geology, Vol. 21, No. 5, 01.01.1993, p. 471-474.

Research output: Contribution to JournalArticleAcademicpeer-review

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