A stable isotope investigation into fluid-rock interaction during regional metamorphism in western dronning maud land, East Antarctica

The Sverdrupfjella Group in western Dronning Maud Land forms part of a 1200 Ma to 900 Ma orogenic belt which experienced a thermal overprint at around 500 Ma. Although the degree of tectonic reworking during this later event remains uncertain, evidence for late fluid alteration is widespread. In this study, the high-grade metamorphic rocks which make up the Sverdrupfjella Group were sampled in the central Kirwanveggen area. The stable isotope and whole-rock composition of these rocks have been determined, in order to test whether zones of intense fluid-rock interaction can be used as evidence for Pan African overprinting of Grenvillian orogenesis in western Dronning Maud Land.

Grantor dc:publisher.institution

Department of Geological Sciences

Year dc:date.issued

2001

Author dc:creator

• Johnstone, Warren Peter

Advisor dc:contributor.advisor

• Harris, Chris

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/9706

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/9706