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A petrographic and geochemical study of the Early Proterozoic, Bangenhuk granitoid rocks of Ny Friesland, Svalbard

Carlsson, Patric (1993) In Dissertations in Geology at Lund University
Department of Geology
Abstract
Old Red Sandstones and younger strata overlie a variety of deformed and metamorphosed Early
Paleozoic and Precambrian rocks on Svalbard, referred to as the Hecla Hoek Complex. At least
three different terranes are recognized, occurring in eastern, northwestern and southwestern
areas. The Eastern Terrane is exposed in the northeastern parts of the Svalbard archipelago in
Nordaustlandet and Ny Friesland. In the latter area, c. 1750 Ma old granites and gneissic
granites, mostly from the Bangenhuk Formation in the lower part of the Hecla Hoek, have been
studied. Petrographical and geochemical data indicate that the rocks can be classified as granites
and granodiorites and plot as A-type granites in tectonic discrimination diagrams. They... (More)
Old Red Sandstones and younger strata overlie a variety of deformed and metamorphosed Early
Paleozoic and Precambrian rocks on Svalbard, referred to as the Hecla Hoek Complex. At least
three different terranes are recognized, occurring in eastern, northwestern and southwestern
areas. The Eastern Terrane is exposed in the northeastern parts of the Svalbard archipelago in
Nordaustlandet and Ny Friesland. In the latter area, c. 1750 Ma old granites and gneissic
granites, mostly from the Bangenhuk Formation in the lower part of the Hecla Hoek, have been
studied. Petrographical and geochemical data indicate that the rocks can be classified as granites
and granodiorites and plot as A-type granites in tectonic discrimination diagrams. They are
characterized by high alkali contents, high K2O/Na2O- and Fe2O3*/(Fe2O3*+MgO) ratios and
high contents of Zr, Zn, Y, Nb, Ga and REE (except Eu). The geochemical coherence of the
rocks suggests that they represent related magmatic events. Deformation and metamorphism
have not influenced the element distribution significantly. (Less)
Please use this url to cite or link to this publication:
author
Carlsson, Patric
supervisor
organization
year
type
H1 - Master's Degree (One Year)
subject
keywords
geography, geochemistry, petrography, geology, Early Proterozoic, Bangenhuk granitoid rocks, Ny Friesland, Svalbard
publication/series
Dissertations in Geology at Lund University
report number
51
language
English
additional info
David Gee och Lennart Björklund, Lunds universitet.
id
2370164
date added to LUP
2012-03-09 12:20:37
date last changed
2013-03-06 14:47:05
@misc{2370164,
  abstract     = {Old Red Sandstones and younger strata overlie a variety of deformed and metamorphosed Early
Paleozoic and Precambrian rocks on Svalbard, referred to as the Hecla Hoek Complex. At least
three different terranes are recognized, occurring in eastern, northwestern and southwestern
areas. The Eastern Terrane is exposed in the northeastern parts of the Svalbard archipelago in
Nordaustlandet and Ny Friesland. In the latter area, c. 1750 Ma old granites and gneissic
granites, mostly from the Bangenhuk Formation in the lower part of the Hecla Hoek, have been
studied. Petrographical and geochemical data indicate that the rocks can be classified as granites
and granodiorites and plot as A-type granites in tectonic discrimination diagrams. They are
characterized by high alkali contents, high K2O/Na2O- and Fe2O3*/(Fe2O3*+MgO) ratios and
high contents of Zr, Zn, Y, Nb, Ga and REE (except Eu). The geochemical coherence of the
rocks suggests that they represent related magmatic events. Deformation and metamorphism
have not influenced the element distribution significantly.},
  author       = {Carlsson, Patric},
  keyword      = {geography,geochemistry,petrography,geology,Early Proterozoic,Bangenhuk granitoid rocks,Ny Friesland,Svalbard},
  language     = {eng},
  note         = {Student Paper},
  series       = {Dissertations in Geology at Lund University},
  title        = {A petrographic and geochemical study of the Early Proterozoic, Bangenhuk granitoid rocks of Ny Friesland, Svalbard},
  year         = {1993},
}