The Saharonim Basalt: a late Triassic-early Jurassic intrusion in southeastern Makhtesh Ramon, Israel

G. Baer, A. Heimann, Y. Eshet, R. Weinberger, A. Mussett, G. Sherwood

نتاج البحث: نشر في مجلةمقالةمراجعة النظراء

ملخص

Several noncontinuous bodies of basalt have been found recently within the gypsum layers of the Upper Triassic Mohilla Formation near En Saharonim, southeastern Makhtesh Ramon. The basalts show porphyritic textures with 10 to 20% olivine phenocrysts. Two samples from one outcrop were dated by the 40Ar/39Ar method, as 213.6 ± 3.6 Ma and 209.6 ± 2.1 Ma. Two samples from two additional outcrops were dated by the K-Ar method as 210.1 ± 3.8 Ma and 201.9 ± 3.7 Ma. The Carnian age suggested by palynomorphs for the overlying uppermost part of the Mohilla Formation, and the high maturity rank of the organic matter in overlying clays suggest that the basalts are shallow intrusives. -from Authors

اللغة الأصليةالإنجليزيّة
الصفحات (من إلى)1-10
عدد الصفحات10
دوريةIsrael Journal of Earth Sciences
مستوى الصوت44
رقم الإصدار1
حالة النشرنُشِر - 1995
منشور خارجيًانعم

بصمة

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