Kimberlites of the central Cape Province, RSA [Vol.2]

Robey, Julian van Aardt

Kimberlites of the central Cape Province, RSA [Vol.2]

Thesis / Dissertation

1981

Abstract

[Two volume thesis -- only v. 2 in attached pdf] 1) Britstown Commora.ge-'Gemsbokfontein (3o0 3s' .. s, 23°2s 1 E) Two kimberlites, a dyke 1-:'S, 5 ' 6 and a pipe <?.t'~ 8 occur irr.lTl.ediately W and SW of Britstown respectively. Both are of unknown .extentl though pitting3 has proved kimberlitel,3. The dyke, on the western fringes of the town a.nd just south of the road to Vosburg, has yielded fragments.of garnet grunulite3 1 6 and hornblendeschist3. . The pipe (?) situated further to the SW and about l.S kms. south of the homestead Brasdoring9 was sampled. An old pit exists and though only highly altered, calcretized kimberlite is seer.., relatively abundant green orthoand clinopyroxene and ilmenite.(up to 2 mm. in size) can be sampled. Garnets are rare. One garnet gran~lite xenolith was found. 2) Doorskuilen (30°38' S, 23°19' E) A pipe feature situated on the eastern side of the Smartt Syndicate Daml,9. This locality was visited but the farmer knows of no excavations in the area mentioned. There is no further mention in the literature of this kimberlite.

Keywords

Geochemistry

Reference:

Collections

PhD / Doctoral

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