Application of a recent garnet-clinopyroxene geobarometer to mantle-pyroxenite xenoliths from Hyblean Plateau, south-eastern Sicily, Italy

Sergei K. Simakov*, Giovanna Sapienza, Vittorio Scribano

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A recently calibrated geobarometer based on the solubility of the Ca-Tschermak (Ca-Ts) component in clinopyroxene coexisting with garnet is applied to three representative mantle pyroxenite xenoliths from Valle Guffari tuff-breccia deposits (Hyblean Plateau, south-eastern Sicily). Combination of the barometer with suitable geothermometers plot two samples (UL-d21 and UL-d47) close to garnet-spinel transition in the lherzolite field and the sample UL-c17 close to the transition spinel-garnet in the pyroxenite field.

Original languageEnglish
Pages (from-to)177-182
Number of pages6
JournalGeoActa
Volume1
Publication statusPublished - 2001
Externally publishedYes

Keywords

  • Grt-Cpx barometry
  • Mantle xenoliths
  • Pyroxenites
  • Sicily

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