Metasomatic alteration of dolerite in the Proterozoic sediments of north-eastern Disko Bugt

Authors

  • F Kalsbeek

DOI:

https://doi.org/10.34194/rapggu.v150.8138

Abstract

Alteration of a dolerite sheet along quartz-carbonate veins resulted in profound changes in its chemical composition. Per 1000 kg of the original dolerite 135 kg of volatiles, 38 kg of Na2O and 23 kg of CaO were added, and 76 kg of FeO* (total iron expressed as FeO) and 8 kg of K2O were removed. Large proportions of the original Rb, Ba, Sr, Zn, Cu and Ni were carried away during the alteration.

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Published

1991-01-01

How to Cite

Kalsbeek, F. (1991). Metasomatic alteration of dolerite in the Proterozoic sediments of north-eastern Disko Bugt. Rapport Grønlands Geologiske Undersøgelse, 150, 33–35. https://doi.org/10.34194/rapggu.v150.8138