Implications of a downward‐facing fold in the Bathurst granite contact aureole, Hill End Synclinorial Zone, New South Wales
作者:
K. A. W. Crook,
期刊:
Journal of the Geological Society of Australia
(Taylor Available online 1978)
卷期:
Volume 25,
issue 7-8
页码: 467-471
ISSN:0016-7614
年代: 1978
DOI:10.1080/00167617808729055
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A downward‐facing refolded fold in the aureole of the Bathurst Granite displays evidence for three phases of folding. This, and structural anomalies in other Lachlan Fold Belt granitoid aureoles, may be caused by granitoid emplacement. Alternatively they may be records of early deformations, preserved in the granitoid envelopes from the obliterating effects of later deformations. Various causes for the three fold phases are considered, including soft‐sediment deformation, orogenies, and kinking as a result of granitoid emplacement. A unique solution is not yet possible. Unrecognised structural complexities may be widespread in the Hill End Synclinorial Zone.
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