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A tentative model of the Taavinunnanen gabbro — results from a core-drilling

 

作者: SvenÅke Larson,   Andrzej Olkiewicz,   Kaj Ahlbom,   Claes Ålinder,  

 

期刊: Geologiska Föreningen i Stockholm Förhandlingar  （Taylor Available online 1984）
卷期: Volume 106, issue 2  

页码: 119-125

 

ISSN:0016-786X

 

年代: 1984

 

DOI:10.1080/11035898409454621

 

出版商: Taylor & Francis Group

 

关键词: Igneous layering;gabbro;augite;olivine;differentiation;density;Lappland;Sweden;N6756;N6805;E2106;E2054

 

数据来源: Taylor

 

摘要:

Data are presented from the Taavinunnanen gabbro massif in Lappland, Sweden. Olivine, augite, bronzite and plagioclase have been analysed. Samples have been taken from outcrops as well as from a 700 metres long core drilled vertically through the gabbro. It is concluded that the gabbro body is a composite, differentiated layered intrusion of lopolithic shape exhibiting cryptic as well as rhythmic layering. The original magma is suggested to be of tholeiitic composition.

 

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