Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

The Kullaberg peninsula – a glimpse of the Proterozoic evolution of SW Fennoscandia

Söderlund, Ulf LU ; Karlsson, Christine LU ; Johansson, Leif LU and Larsson, Kent LU (2008) In GFF 130(Part 1). p.1-10
Abstract
The Kullaberg peninsula in NW Skåne renders km-long, continuous exposures of the Proterozoic crystalline basement. We report ion microprobe (SIMS) U–Pb zircon ages for six key lithologies at Kullaberg that constrain the geological history of SW Fennoscandia for a considerable time period. Igneous zircon in three varieties of gneiss granite yield ages of 1694±7 Ma, 1693±7 Ma and 1663±14 Ma, in the same age range as orthogneisses further north in the same crustal segment. Partial melting, manifested by formation of pegmatite dykes and veins, occurred at 1473±6 Ma. Emplacement of mafic dykes, today seen as a large number of north-trending amphibolite sheets across the Kullaberg peninsula, is dated at 961±6 Ma. The dykes, which fall in the... (More)
The Kullaberg peninsula in NW Skåne renders km-long, continuous exposures of the Proterozoic crystalline basement. We report ion microprobe (SIMS) U–Pb zircon ages for six key lithologies at Kullaberg that constrain the geological history of SW Fennoscandia for a considerable time period. Igneous zircon in three varieties of gneiss granite yield ages of 1694±7 Ma, 1693±7 Ma and 1663±14 Ma, in the same age range as orthogneisses further north in the same crustal segment. Partial melting, manifested by formation of pegmatite dykes and veins, occurred at 1473±6 Ma. Emplacement of mafic dykes, today seen as a large number of north-trending amphibolite sheets across the Kullaberg peninsula, is dated at 961±6 Ma. The dykes, which fall in the same age range as the Blekinge-Dalarna dolerites (978–945 Ma) predate an event of amphibolite facies deformation, which presumably relates to exhumation of the crust following shortly after the Sveconorwegian compressional stage. A pegmatite was emplaced at 934±6 Ma after the crust had been exhumed through the ductile-brittle boundary. (Less)
Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
horst-graben, zircon, U–Pb SIMS, Skåne, Sorgenfrei-Tornquist zone
in
GFF
volume
130
issue
Part 1
pages
1 - 10
publisher
Taylor & Francis
external identifiers
  • wos:000256225300001
  • scopus:44149108217
ISSN
2000-0863
language
English
LU publication?
yes
id
746acf45-172e-4817-8f52-5a7cb12900c3 (old id 1152074)
date added to LUP
2016-04-01 12:34:26
date last changed
2022-02-19 00:22:08
@article{746acf45-172e-4817-8f52-5a7cb12900c3,
  abstract     = {{The Kullaberg peninsula in NW Skåne renders km-long, continuous exposures of the Proterozoic crystalline basement. We report ion microprobe (SIMS) U–Pb zircon ages for six key lithologies at Kullaberg that constrain the geological history of SW Fennoscandia for a considerable time period. Igneous zircon in three varieties of gneiss granite yield ages of 1694±7 Ma, 1693±7 Ma and 1663±14 Ma, in the same age range as orthogneisses further north in the same crustal segment. Partial melting, manifested by formation of pegmatite dykes and veins, occurred at 1473±6 Ma. Emplacement of mafic dykes, today seen as a large number of north-trending amphibolite sheets across the Kullaberg peninsula, is dated at 961±6 Ma. The dykes, which fall in the same age range as the Blekinge-Dalarna dolerites (978–945 Ma) predate an event of amphibolite facies deformation, which presumably relates to exhumation of the crust following shortly after the Sveconorwegian compressional stage. A pegmatite was emplaced at 934±6 Ma after the crust had been exhumed through the ductile-brittle boundary.}},
  author       = {{Söderlund, Ulf and Karlsson, Christine and Johansson, Leif and Larsson, Kent}},
  issn         = {{2000-0863}},
  keywords     = {{horst-graben; zircon; U–Pb SIMS; Skåne; Sorgenfrei-Tornquist zone}},
  language     = {{eng}},
  number       = {{Part 1}},
  pages        = {{1--10}},
  publisher    = {{Taylor & Francis}},
  series       = {{GFF}},
  title        = {{The Kullaberg peninsula – a glimpse of the Proterozoic evolution of SW Fennoscandia}},
  volume       = {{130}},
  year         = {{2008}},
}