DIAGENESIS OF MERCURY ORE ZONE IN TONGREN-FENGHUANG—SANDU—DANZHAI REGION

Li Zhenze; Zhou Dikang

doi:10.11743/ogg19880416

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DIAGENESIS OF MERCURY ORE ZONE IN TONGREN-FENGHUANG—SANDU—DANZHAI REGION
Vol. 9, Issue 4, Pages: 428-432(1988)
Online First：25 December 1988，

Published：1988
DOI： 10.11743/ogg19880416
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DOI：

Li Zhenze, Zhou Dikang. DIAGENESIS OF MERCURY ORE ZONE IN TONGREN-FENGHUANG—SANDU—DANZHAI REGION[J]. 1988, 9(4): 428-432. DOI： 10.11743/ogg19880416.

摘要

铜(仁)-凤(凰)-三(都)-丹(寨)寒武系碳酸盐岩

属台地前缘斜坡相带

为汞、油最佳聚集部位

蕴育了全国最大的汞矿带

保留了数千万吨沥青.成岩作用有:生物作用、胶结作用、压实作用、早期溶解作用、新生变形、白云岩化作用、压溶作用、交代作用、晚期溶解作用等.早期溶解作用形成于泥盆—石炭纪

对聚油十分有利

晚期溶解作用形成于白垩纪末

对形成汞矿十分有利.

Abstract

Cambrian carbonate rocks in Tongreni-Fenghuang-Sandu-Danzhai regionbelongs to front slope facies of platform

and is in optimal position for mer-cury and oil accumulation. The diagenesis of the carbonate rocks include bio-genic agency

cementation

compaction

early-stage dissolution

neomorphsmi

dolomitization

pressure solution

metasomatism and late-stage dissolution.The early-stage dissolution and dolomitization took place in the Devonian-Carboniferous Periods and are favourable for oil accumulation; the latestage dissolution happened in Late Cretaceous and is favourable for mercuryaccumulation.