The Bamble Sector, South Norway: A review

Geoscience Frontiers

Tom Andersen¹  Daniel E. Harlov²  Timo G. Nijland³ 

[1] Department of Geosciences, University of Oslo, P.O. Box 1047, Blindern, 0316 Oslo, Norway;GeoForschungsZentrum, Telegrafenberg, 14473 Potsdam, Germany;TNO, P.O. Box 49, 2600 AA Delft, The Netherlands;

关键词: Bamble Sector;    South Norway;    Charnockite;    Amphibolite- to granulite-facies transition;    CO2;    Brines;    Precambrian;   

DOI  :  10.1016/j.gsf.2014.04.008

来源: DOAJ

【 摘 要 】

The Proterozoic Bamble Sector, South Norway, is one of the world's classic amphibolite- to granulite-facies transition zones. It is characterized by a well-developed isograd sequence, with isolated ‘granulite-facies islands’ in the amphibolite-facies portion of the transition zone. The area is notable for the discovery of CO2-dominated fluid inclusions in the granulite-facies rocks by Jacques Touret in the late 1960's, which triggered discussion of the role of carbonic fluids during granulite genesis. The aim of this review is to provide an overview of the current state of knowledge of the Bamble Sector, with an emphasis on the Arendal-Froland-Nelaug-Tvedestrand area and off shore islands (most prominantly Tromøy and Hisøy) where the transition zone is best developed. After a brief overview of the history of geological research and mining in the area, aspects of sedimentary, metamorphic and magmatic petrology of the Bamble Sector are discussed, including the role of fluids. Issues relevant to current geotectonic models for SW Scandinavia, directly related to the Bamble Sector, are discussed at the end of the review.

【 授权许可】

Unknown