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Stilpnomelane and associated minerals in the Hällefors dolerite dyke, south central Sweden

 

作者: Ricardo Lopez-Montano,  

 

期刊: Geologiska Föreningen i Stockholm Förhandlingar  （Taylor Available online 1984）
卷期: Volume 106, issue 1  

页码: 73-79

 

ISSN:0016-786X

 

年代: 1984

 

DOI:10.1080/11035898409454610

 

出版商: Taylor & Francis Group

 

关键词: Stilpnomelane;ferrostilpnomelane;ferristilpnomelane;ferroactinolite-ferroactinolitic hornblende;Hällefors dolerite dyke;Södermanland;south central Sweden;N5908 N5910 E1557 E1639

 

数据来源: Taylor

 

摘要:

Ferro- and ferristilpnomelane occur in the dolerites and associated rocks of the Hällefors dyke in Södermanland, south central Sweden. The secondary mineral assemblage is: stilpnomelane, ferroactinolitic amphibolc, iron-rich chlorite, epidote, albite, titanite and quartz. This greenschist facies assemblage has probably formed during an episode of non-deformational alteration. The ferristilpnomelane was most likely formed by oxidation of ferrostilp-nomelane under atmospheric conditions.

 

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