摘要
红石地区金银矿形成于燕山晚期 ,成矿与伸展构造密切相关 ,成矿流体主要来自岩浆期后热液。断裂和岩浆岩是两大重要的成矿地质条件。金矿、银矿具成片分布、成群集中之特点。变质岩区易成银 ,花岗岩区易成金。从岩体内部向外部 ,依次形成金矿、金银矿、银矿 。
Gold-silver deposits formed during late Yanshanian epoch in Hongshi area, closely related to extensional tectonics. The postmagmatic hydrothermal solution is the principal source of ore-forming fluid . Faults and magmatic rocks are two important metallogenic conditions. Gold deposits and silver deposits have the characteristics of districted distribution and crowded collection. Silver deposits easily formed in metamorphic area and gold deposits in magmatic area. From inner to outer of granite, Metallogenic regularity is shown as follows, orderly formed gold deposit, gold-silver deposit and silver deposit.
出处
《湖北地矿》
2001年第1期6-13,共8页
Hubei Geology & Mineral Resources
