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中南大学学报(自然科学版)

Journal of Central South University

第28卷    第6期    总第118期    1997年12月

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文章编号:(1997)06-7-5
永梅坳陷带铜银矿床区域控矿规律与成矿模式
吴承健; 吴延之

(中南工业大学资源环境与建筑工程学院;长沙;410083)

摘 要: 永梅坳陷带是我国华南地区重要的铁铜 多金属成矿带.本文探讨了该成矿带中铜(伴生)银矿床的区域控矿规律及成矿模式.重点研究了沉积环境、岩相建造、不同类型构造、火山活动及热水活动对铜银成矿的控制作用.研究结果表明,铜银成矿作用主要发生在各大地构造演化时期的裂陷拉张阶段,空间上分布于相应时期形成的坳陷盆地及其有关的沉积建造中,矿 床定位于同沉积断层控制的次级洼地、层间破碎带及火山构造中,成矿作用与热水活动和火山活动具有密切关系,并显示出多阶段叠加和改造的特点. 

 

关键字: 铜银矿床; 控矿规律; 成矿模式

REGIONAL ORE CONTROL REGULARITIES AND METALLOGENIC MODEL: AN APPROACH TO Cu Ag DEPOSITS IN YONGMEI GEOTECTOGENE
Wu Chengjian Wu Yanzhi

College of Resources,Environment and Civil Engineering,Central South University of Technology,Changsha, 410083,China

Abstract:The Yongmei depression basin in south China is an important metallogenic belt of Cu,Fe and polymetals.This paper studies the regional ore control regularities and metallogenic model of Cu and (associated) Ag deposits in the metallogenic belt.Emphasis is placed on sedimentary environment,lithofacies,ore bearing formations,structures,volcanism and hot water activity,as well as their controlling effects on the Cu Ag mineralization.Some conclusions are drawn:the metallization of Cu and Ag occurs during the extension stage of the geotectonic evolution;Cu and Ag deposits are spatially distrbuted in the depression basin and specific formations; the orebodies are located in swales formed by syngenetic fault,interstratified broken zones and volcanic structures;the Cu Ag metallization has a close relation with the volcanic and hotwater activities;their metallogenic process has the feature of multistage superimposition and reformation. 

 

Key words: Cu Ag deposit; ore control regularity; metallogenic model

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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