摘要
在含金断裂蚀变带中,由于剪切带流体的强烈交代作用,交代蚀变岩成为金矿的重要矿石类型。剪切带中的流体往往携带大量成矿物质而成为成矿流体,剪切带中成矿汇体在金矿形成过程中起着重要作用。在剪切带中,由子压力迅速降低,经常导致成矿流体发生沸腾作用,从而导致金矿的形成。
Fluid in the shear zones is closely related to alteration in gold deposits in metamorphic rock area. There are various types and stages of metasomatism and metasomatite in the shear zones. Au mineralization was closely related to the metasomatite at the second- third stage. In the fault alteration belts which bear gold, metasomatite becomes an important ore type because of violent fluid metasomatism in the shear zones. The fluid of the shear zones often becomes ore - forming fluid for its carrying a lot of ore materials. Ore fluid in the shear zones play an important role during gold deposit formation. In the shear zones, pressure lowering suddenly often leads to ore fluid boiling. And then gold sedimentation occurs.
出处
《湖北地矿》
2001年第4期45-49,共5页
Hubei Geology & Mineral Resources
