Cr-poor megacrysts from the Shamah volcanic field, northwestern part of the Arabian Plate

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Megacrysts are common in alkali basalt of Quaternary age in the northeastern Harrat Shamah basalt fields of Jordan. The dominant phases are Al-clinopyroxene, Al-bronzite, pleonaste spinel and kaersutite amphibole. The megacrysts differ in composition from analogous phases in associated lherzolite xenoliths, but are similar to those in associated Al-augite pyroxenite xenoliths. Major and trace element partioning indicates that most of the megacrysts may have been in equilibrium with their host magmas at high pressure.

Original languageEnglish
Pages (from-to)349-357
Number of pages9
JournalJournal of African Earth Sciences
Volume21
Issue number3
DOIs
Publication statusPublished - 1995

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Arabian plate
pyroxenite
alkali basalt
augite
lherzolite
spinel
amphibole
clinopyroxene
basalt
trace element

ASJC Scopus subject areas

  • Earth-Surface Processes
  • Geology

Cite this

Cr-poor megacrysts from the Shamah volcanic field, northwestern part of the Arabian Plate. / Nasir, Sobhi.

In: Journal of African Earth Sciences, Vol. 21, No. 3, 1995, p. 349-357.

Research output: Contribution to journalArticle

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