Crustal influences in the petrogenesis of the Malani rhyolites, South Western Rajasthan: Combined trace element and oxygen isotope constraints

被引：0
|
作者：
Maheshwari, A
Coltorti, M
Sial, AN
Mariano, G
机构：
[1] UNIV FERRARA,INST MINERAL,I-44100 FERRARA,ITALY
[2] UFPE,DEPT GEOL,BR-50732970 RECIFE,PE,BRAZIL
来源：
JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA | 1996年 / 47卷 / 05期
关键词：
petrology; oxygen isotopes; Malani volcanics; Rajasthan;
D O I：
暂无
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The Malani volcanics of Gurapratap Singh and Diri belong to a basalt-andesite -dacite-rhyolite association of Precambrian age. The preponderance of rhyolites over basic and intermediate rocks is a significant feature of the area. The rhyolities are characterised by chemical features, which indicate their A-type affinity. The study rules out their cogeneticity and suggests the crustal involvement in the genesis of Malani rhyolites.
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页码：611 / 619
页数：9
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