摘要
中国东部地壳地洼阶段的热塑性变形应力场有利于锡成矿。构造应力场对锡成矿的控制作用,表现为对成矿域的矿液运移势和能量场的控制。推导获得矿液运移势的计算公式:Vi=-(a·K_0/u)·[exp(σ_1-σ_2)]·(σ_1+σ_2),表明地壳构造应力场对成矿域矿液的运移和成矿部位的选择提供了有利的动力学条件。
The thermal—plastic deformation stress field of the diwa stage in eastern China is favourable for tin metallogenesis. Control of a tectonic stress field on tin metallogenesis is displayed as its control on migration tendency and energy field of ore-forming fluids, A formula for migration tendency of ore-forming fluid is inferred as ⅵ=-(a, Ko/u)[exp(σ_1—σ_2)](σ_1 +σ_2). indicating that the tectonic stress provides dynamic conditions for the migration of ore-forming fluids and localization of ore.
出处
《大地构造与成矿学》
EI
CAS
CSCD
1991年第2期138-143,共6页
Geotectonica et Metallogenia
关键词
地洼阶段
应力场
锡矿
成矿
diwa stage, tectonic stress field, tin ore zone, migration tendency of ore-forming fluid, eastern China.
