Børgefjell. Beskrivelse til det berggrunnsgologiske gradteigskart J.19 - 1: 100 000

Three main structural units are present: 1. The Precambrian (Svecofennokarelian) basement of the Børgefjell Window. \". Low grade (greenschist facies) Lower Paleozoic rocks belonging to the Seve-Køli Nappe Complex. 3. The higher grade (amphibolite facies) Helgeland Nappe, thrust on top of the l...

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Bibliographic Details
Main Author: Gustavson, Magne
Format: Article in Journal/Newspaper
Language:Norwegian
Published: 1973
Subjects:
STRATIGRAFI
STRUKTURGEOLOGI
PETROGRAFI
KVARTÆRGEOLOGI
KARTLEGGING
GEOKRONOLOGI
Helgeland
Grane
Hattfjelldal
Majavatn
Susendalen
Børgefjell
Nordland
Online Access:https://hdl.handle.net/11250/2674964
Description
Summary:Three main structural units are present: 1. The Precambrian (Svecofennokarelian) basement of the Børgefjell Window. \". Low grade (greenschist facies) Lower Paleozoic rocks belonging to the Seve-Køli Nappe Complex. 3. The higher grade (amphibolite facies) Helgeland Nappe, thrust on top of the low grade rocks. The bedrock lithologies within these units are briefly described. Metasediments, metavolcanics and intrusive igneous rocks are present in the Caledonian part of the sequence. Within the Precambrian, granite and granitic gneiss predominate but metasediments and rocks transitional between gneisses and the metasediments are common. The stratigraphical position of the Caledonian rocks is briefly discussed. 36176

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