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Occurrence of ignimbrite in the Shag Valley, North-east Otago

 

作者: A. Steiner,   D. A. Brown,   A. J. R. White,  

 

期刊: New Zealand Journal of Geology and Geophysics  （Taylor Available online 1959）
卷期: Volume 2, issue 2  

页码: 380-384

 

ISSN:0028-8306

 

年代: 1959

 

DOI:10.1080/00288306.1959.10417656

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Petrography of the acid igneous rock of the Shag Valley in North-east Otago, previously classified as a quartz porphyry, indicates that this rock is an ignimbrite. Formerly described as a dyke, the Shag Valley rock is now considered to be a surface rock interbedded with coal measures of Upper Senonian age, and is the first occurrence of ignimbrite described from the South Tsland of New Zealand.

 

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