FLUORITE DEPOSITS IN DOLOMITE SERIES OF MARICO DISTRICT, TRANSVAAL, SOUTH-AFRICA

被引：20

作者：

MARTINI, JEJ ^{[1
]}

机构：

[1] GEOL SURVEY S AFRICA,PRETORIA,SOUTH AFRICA

来源：

ECONOMIC GEOLOGY | 1976年 / 71卷 / 03期

关键词：

D O I：

10.2113/gsecongeo.71.3.625

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The upper part of the Precambrian Dolomite Series is mineralized with fluorite and minor lead-zinc. The deposits show similarities to the Mississippi Valley type but were subsequently metamorphosed in the contact aureole of the Bushveld Igneous Complex. The ore locations are mostly controlled by paleoporosity of the dolomite such as vuggy horizons and paleokarst. On a larger scale the fluorite district is localized on a paleo-relief which acted as an ore trap. Several genetic hypotheses are proposed; the most attractive one is precipitation from solutions which derived fluorine from the Dolomite Series and/or Pretoria Series during diagenesis. Economically the fluorite district appears to be one of the largest in the world. Refs.

引用

页码：625 / 635

页数：11

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