The age of the Cuddapah and Kurnool systems, southern India
作者:
A. R. Crawford,
W. Compston,
期刊:
Journal of the Geological Society of Australia
(Taylor Available online 1973)
卷期:
Volume 19,
issue 4
页码: 453-464
ISSN:0016-7614
年代: 1973
DOI:10.1080/00167617308728813
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
In southern India the older Precambrian is overlain unconformably in the Cuddapah Basin by the Cuddapah and Kurnool Systems. The former is tilted and unmetamorphosed in the west but eastwards becomes strongly folded and metamorphosed. It contains lavas and sills, particularly in the lower two groups, is intruded by dolerites and at Chelima by diatremes of kimberlitic affinities related to those intruding the older gneisses west of the Cuddapah Basin in the Wajrakarur area. The Kurnool System lacks any igneous rocks; its basal conglomerate is diamondi‐ferous.
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