ملخص
Fresh spinel-Lherzolite xenoliths occur within the pyroclastic components of the Aritain volcano, NE-Jordan. The average modal composition of the xenoliths is 67 vol.% olivine, 23 vol. % orthopyroxene, 9 vol. % clinopyroxene and 1.6 vol. % spinel. All xenoliths exhibit a protogranular texture. Selected electron probe analyses of enstatite, diopside, olivine, and spinel are given. Temperatures of their last equilibration range from 925° to 1,025°C. Pressure estimates based on the spinel-Lherzolite stability field restrict the xenolith source to a depth of 37 to 60 km. Up to 18 % XCr in spinel indicates an origin from a maximum depth of 60 km.
اللغة الأصلية | English |
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الصفحات (من إلى) | 127-137 |
عدد الصفحات | 11 |
دورية | Mineralogy and Petrology |
مستوى الصوت | 38 |
رقم الإصدار | 2 |
المعرِّفات الرقمية للأشياء | |
حالة النشر | Published - أبريل 1988 |
منشور خارجيًا | نعم |
ASJC Scopus subject areas
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