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The age of the Kleva intrusion, southeast Sweden

Bjärnborg, Karolina LU ; Scherstén, Anders LU ; Söderlund, Ulf LU and Maier, Wolfgang (2013) 12th Biennial SGA Meeting on Mineral Deposit Research for a High-Tech World In Mineral deposit research for a high-tech world : Proceedings of the 12th Biennial SGA Meeting, 12-15 August 2013, Uppsala, Sweden p.1647-1649
Abstract
The Kleva nickel-copper mineralization is situated within a gabbro-diorite intrusion on the border between the late Svecofennian rocks of the Oskarshamn-Jonkoping belt and rocks of the slightly younger Transscandinavian Igneous Belt (TIB). The sulphides present in the mafic intrusion are pyrrhotite, chalcopyrite, pentlandite and pyrite, occurring as massive mineralization, disseminations and thin, predominantly chalcopyrite-bearing veins. Age determinations of the gabbro-diorite were conducted to determine the age of the mineralization and its regional context. U-Pb analyses of baddeleyite (TIMS) and zircon (SIMS) from the gabbro-diorite and related rocks indicate an age of c. 1.79 Ga for the Kleva intrusion, broadly coeval with the... (More)
The Kleva nickel-copper mineralization is situated within a gabbro-diorite intrusion on the border between the late Svecofennian rocks of the Oskarshamn-Jonkoping belt and rocks of the slightly younger Transscandinavian Igneous Belt (TIB). The sulphides present in the mafic intrusion are pyrrhotite, chalcopyrite, pentlandite and pyrite, occurring as massive mineralization, disseminations and thin, predominantly chalcopyrite-bearing veins. Age determinations of the gabbro-diorite were conducted to determine the age of the mineralization and its regional context. U-Pb analyses of baddeleyite (TIMS) and zircon (SIMS) from the gabbro-diorite and related rocks indicate an age of c. 1.79 Ga for the Kleva intrusion, broadly coeval with the TIB-rocks in the area, but younger than the late Svecofennian rocks. Further studies will help to constrain whether the sulphide mineralization was modified during later alteration, regional tectonism and metamorphism. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Kleva, sulphide, gabbro-diorite
in
Mineral deposit research for a high-tech world : Proceedings of the 12th Biennial SGA Meeting, 12-15 August 2013, Uppsala, Sweden
pages
1647 - 1649
publisher
SGU
conference name
12th Biennial SGA Meeting on Mineral Deposit Research for a High-Tech World
external identifiers
  • WOS:000337983900415
ISBN
978-91-7403-207-9
language
English
LU publication?
yes
id
1211d878-b94a-4f5c-8b97-9195856b2d0b (old id 4602565)
date added to LUP
2014-09-04 15:44:09
date last changed
2016-04-16 09:09:11
@misc{1211d878-b94a-4f5c-8b97-9195856b2d0b,
  abstract     = {The Kleva nickel-copper mineralization is situated within a gabbro-diorite intrusion on the border between the late Svecofennian rocks of the Oskarshamn-Jonkoping belt and rocks of the slightly younger Transscandinavian Igneous Belt (TIB). The sulphides present in the mafic intrusion are pyrrhotite, chalcopyrite, pentlandite and pyrite, occurring as massive mineralization, disseminations and thin, predominantly chalcopyrite-bearing veins. Age determinations of the gabbro-diorite were conducted to determine the age of the mineralization and its regional context. U-Pb analyses of baddeleyite (TIMS) and zircon (SIMS) from the gabbro-diorite and related rocks indicate an age of c. 1.79 Ga for the Kleva intrusion, broadly coeval with the TIB-rocks in the area, but younger than the late Svecofennian rocks. Further studies will help to constrain whether the sulphide mineralization was modified during later alteration, regional tectonism and metamorphism.},
  author       = {Bjärnborg, Karolina and Scherstén, Anders and Söderlund, Ulf and Maier, Wolfgang},
  isbn         = {978-91-7403-207-9},
  keyword      = {Kleva,sulphide,gabbro-diorite},
  language     = {eng},
  pages        = {1647--1649},
  publisher    = {ARRAY(0x878d120)},
  series       = {Mineral deposit research for a high-tech world : Proceedings of the 12th Biennial SGA Meeting, 12-15 August 2013, Uppsala, Sweden},
  title        = {The age of the Kleva intrusion, southeast Sweden},
  year         = {2013},
}