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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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