摘要
湘中清水塘矿四定位于断裂带中。从矿脉形态、矿化类型和形式、矿液组分、矿化多阶段性等方面，论述了断裂控矿作用与矿液致裂成矿特点。地洼期构造岩浆活动，伴随矿液的充填压裂，形成矿田内主要矿脉、矿脉中心部位出现条带致密块状矿石，矿脉两端为网脉、细脉、分枝脉、脉的旁侧发育着羽列脉，在矿脉中常见有中石构造，可拼接角砾状矿石和断裂桥构造。显示出控矿断裂经历了从韧性到脆性递进变形作用过程。
The Qingshuitang ore field, central Hunan, is controlled by a fracture zone. From the morphology of ore veins, types and patterns of mineralization, composition of ore nuid and multi stanges of mineralization and so on, the article has discussed the mineralization controlled by fractures and metallogenic characteristics of ore-nuid fracturing. The structural and magmatic activities of diwa period with filling and pressure burst of ore solution have formed main ore veins in the ore field. The banded, compact and massive ore has been found in the central part of ore veins. There exist stockwork, veinlet and swither on the both sides of ore veins, beside which there are pinnate arrangements. Usually, midstone structure, connectable brecciatecd ore and fracture bridge structure can be seen in the ore veins. All of these show that the ore-controlling fractures have gone through the process of progressive deformation from ductility to fragility.
出处
《大地构造与成矿学》
EI
CAS
CSCD
1999年第4期328-333,共6页
Geotectonica et Metallogenia
基金
国家自然科学基金!49772152
关键词
断裂带
铅锌矿床
矿液致裂作用
银矿床
矿床成矿
fracture zone, morphology of ore vein, type and pattern of mineralization, multi-stages of mineralization, ore fluid fracturing
