Vol. 23 | 2011

Remnants of Mesoarchaean oceanic crust in the Tartoq Group, South-West Greenland

RESEARCH ARTICLE | SHORT
Published July 15, 2011
Kristoffer Szilas
+
Vincent J. van Hinsberg
+
Alexander F. M. Kisters
+
Thomas F. Kokfelt
+
Anders Scherstén
+
Brian F. Windley
+
RESEARCH ARTICLE | SHORT
Published July 15, 2011
Map of the study area.
Abstract
Downloads
License

Copyright (c) 2011 Kristoffer Szilas, Vincent J. van Hinsberg, Alexander F. M. Kisters, Thomas F. Kokfelt, Anders Scherstén, Brian F. Windley

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

GEUS Bulletin is an open-access, peer-reviewed journal published by the Geological Survey of Denmark and Greenland (GEUS). This article is distributed under a CC-BY 4.0 licence, permitting free redistribution and reproduction for any purpose, even commercial, provided proper citation of the original work. Author(s) retain copyright over the article contents. Read the full open access policy.

Abstract

The Tartoq Group is located in the Sermiligaarsuk fjord region in South-West Greenland in an area of approximately 20 × 50 km (Fig. 1). The Tartoq Group consists of several discrete, fault-bound blocks of metavolcanic rocks, surrounded by Archaean tonalite-trondhjemite-granodioritetype (TTG) gneisses. A zircon age of 2996.3 ± 5.9 Ma of a TTG intrusion provides a minimum age for the formation of the Tartoq Group (Fig. 2). The metavolcanic rocks probably show the lowest degree of metamorphism found anywhere in the Archaean craton of Greenland. Here we present a new model for the origin of the metavolcanic rocks of the Tartoq Group based on geochemical, metamorphic and structural data. The samples used for this study were collected by the Geological Survey of Denmark and Greenland (GEUS) in 2009 and 2010. The study is part of a joint project between the Greenland Bureau of Minerals and Petroleum and GEUS on the mineral potential of south-western Greenland.

License

Copyright (c) 2011 Kristoffer Szilas, Vincent J. van Hinsberg, Alexander F. M. Kisters, Thomas F. Kokfelt, Anders Scherstén, Brian F. Windley

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

GEUS Bulletin is an open-access, peer-reviewed journal published by the Geological Survey of Denmark and Greenland (GEUS). This article is distributed under a CC-BY 4.0 licence, permitting free redistribution and reproduction for any purpose, even commercial, provided proper citation of the original work. Author(s) retain copyright over the article contents. Read the full open access policy.

Downloads

Download data is not yet available.
Read More In This Issue

Edited by Ole Bennike, Adam A. Garde and W. Stuart Watt

This Review of Survey activities presents a selection of 19 papers reflecting the wide spectrum of activities of the Geological Survey of Denmark and Greenland, from the microscopic to the plate-tectonic level.

The Survey's activities in Denmark and surrounding areas are [...]