The occurrence of Mesozoic oceanic floor and ancient continental crust on South Georgia

Storey, B.C.; Mair, B.F.; Bell, C.M.. 1977 The occurrence of Mesozoic oceanic floor and ancient continental crust on South Georgia. Geological Magazine, 114 (3). 203-208. https://doi.org/10.1017/S0016756800044770

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Official URL: http://dx.doi.org/10.1017/S0016756800044770

Abstract/Summary

The Larsen Harbour Formation of southern South Georgia is part of an ophiolite sequence of submarine lavas and sheeted dykes emplaced into metasedimentary country rocks. The metasediments are remnants of a pre-Cretaceous continental crust which had been subject to regional metamorphism and polyphase deformation prior to intrusion by a variety of acid and basic igneous rocks (roots of the ophiolitic sequence). It is proposed that the segment of continental crust and the Larsen Harbour Formation formed the floor of a back-arc basin which was infilled during Early Cretaceous time by a thick sequence of volcaniclastic sediments (Cumberland Bay Formation).

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1017/S0016756800044770
ISSN:	0016-7568
Date made live:	24 Oct 2019 08:36 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/525592

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.1017/S0016756800044770

ISSN:

0016-7568

Date made live:

24 Oct 2019 08:36 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/525592