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oa South African Journal of Geology - The basalt stratigraphy of the Sani Pass, Kwazulu/Natal Drakensberg

Volume 99 Number 3
  • ISSN : 1012-0750
  • E-ISSN: 1996-8590

 

Abstract

The Sani Pass, on Lesotho's eastern border with South Africa, provides access to an approximately 800 m-thick section through Jurassic basalt lavas of the Karoo Central Province. Field mapping and geochemical characterization have allowed the subdivision of the basalts into a series of four compositionally distinct stratigraphic units in the lowermost 175 m of the sequence, overlain by a thick (approximately 625 m) succession of basalts that correlate with the Lesotho basalt type, which occurs over wide areas of the Karoo Central Province. The lowermost lava units are intercalated with isolated thin bands of pyroclastic material. 

Die Sanipas, aan Lesotho se oostelike grens met Suid-Afrika, verskaf toegang tot 'n nagenoeg 800 m-dik snit deur Jurassiese basaltlawa van die Karoo Sentrale Provinsie. Veldkartering en geochemiese ondersoek het gelei tot die onderverdeling, volgens samestelling, van die basalte in vier onderskeie stratigrafiese eenhede in die heel onderste 175 m van die opeenvolging. Dit word oorlê deur 'n dik (omtrent 625 m) opeenvolging van basalte wat ooreenstem met die Lesothobasalttipe, wat in groot gebiede van die Karoo Sentrale Provinsie voorkom. Die heel onderste lawa-eenhede bet dun geïsoleerde tussenlae van piroklastiese materiaal.

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/content/journal/10520/EJC-93477327e
1996-09-01
2019-09-22

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