Early Tertiary volcanic rocks on the Agulhas Bank, South African Continental Shelf

1 March 1972

journal article
research article
Published by Cambridge University Press (CUP) in Geological Magazine

Vol. 109 (2) , 127-136
https://doi.org/10.1017/s0016756800039510

Abstract

Summary: Tuffs, trachybasalts, aegirine–augite trachytes and aegirine–augite phonolitic trachytes occur on the continental shelf at the southern tip of Africa. They have been radiometrically dated at 58(±2.4) million years (Palaeocene), and together with other alkali-rich basic intrusions onshore form the Alphard Tertiary Igneous Province. Both onshore and offshore sites of intrusion appear to be strongly tectonically controlled.

Keywords

This publication has 2 references indexed in Scilit:

Physical Sciences: The World Rift System and Plate Tectonics or 1971 and All That
Nature, 1971
THE SUTHERLAND VOLCANIC PIPES AND THEIR RELATIONSHIP TO OTHER VENTS IN SOUTH AFRICA
Transactions of the South African Philosophical Society, 1904