Earth’s oldest well-preserved mafic dyke swarms in the vicinity of the Isua greenstone belt, southern West Greenland

Authors

  • Rosalind V. White Geological Survey of Denmark and Greenland, Thoravej 8, DK-2400 Copenhagen NV, Denmark
  • James L. Crowley Department of Earth Sciences, Memorial University, Alexander Murray Building, St. John’s, Newfoundland A1B 3X5, Canada
  • John S. Myers Department of Earth Sciences, Memorial University, Alexander Murray Building, St. John’s, Newfoundland A1B 3X5, Canada

DOI:

https://doi.org/10.34194/ggub.v186.5217

Abstract

The Isukasia region of southern West Greenland contains the Earth’s oldest known supracrustal rocks (the c. 3.8–3.7 Ga Isua greenstone belt: Appel et al. 1998) and well-preserved mafic dyke swarms (Inaluk and Tarssartôq dykes: Nutman et al. 1983). This report describes field investigations of the dykes carried out in 1999 as part of the Isua Multidisciplinary Research Project, and summarises current knowledge of the dykes. The project was initiated in 1997 with the aim of coordinating a detailed reinvestigation of this geologically important region. Fifteen members of the group were involved in field work in 1999 and this article represents only one aspect of the work.

Geology of Greenland Survey Bulletin 186

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Published

2000-01-01

How to Cite

White, R. V. ., Crowley, J. L. ., & Myers, J. S. . (2000). Earth’s oldest well-preserved mafic dyke swarms in the vicinity of the Isua greenstone belt, southern West Greenland. Geology of Greenland Survey Bulletin, 186, 65–72. https://doi.org/10.34194/ggub.v186.5217

Issue

Vol. 186 (2000): Review of Greenland Activities 1999

Section

RESEARCH ARTICLE | SHORT

License

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.