摘要
用有限元模型数学模拟实验证实,处在挤压变形带、剪切变形带到引张变形带（及地域）中岩石所承受的构造附加静水压力有逐次变小的规律性。指出,构造静水压力梯度是流体及油气长距离水平运移的主要原因;建立岩石矿床形成深度的构造校正测算方法,得出胶东“玲珑—焦家式”金矿成矿深度仅3km左右、大别超高压变质带含柯石英榴辉岩形成深度≥32km;逐步形成构造通过影响物理化学环境的方式影响成岩成矿地球化学过程,即构造物理化学成矿的新认识,探讨应用构造物理化学场结构与界面成矿的分析方法,实测重建玲珑金矿田阜山矿区成矿构造物理化学参量分市场,提出参量在场强高值区与低值区转化过渡区带（及阶段）有利成矿,并预测了未知区隐伏矿床。
Finite-element mathematical simulation proved that the tectonic additional hydrostatic pressure in rocks continuously reduces from compression deformation zone to shear deformation zone to extension deformation zone. This paper further points out that the hydrostatic pressure gradient is the main reason causing migrating of fluid and oil and gas in long distance along the horizontal direction, establishes the method of measurement of metallogenic depth modified by structure, gets into a new research field of tectonic-physicochemistry, i. e. tectonism affecting chemical process of petroggenesis and metallogensis through changing physicochemical condition, and discuss the analytical method about the texture and boundry plane of metallogenesis of tectono-physicochemical field. With this method, the authors got the formational depth of the 'Linglong-Jiaojia' type gold deposits and the coesite-bearing eclogite in Dabie high-pressure metamorphic belt to be about 3 km and 2^32 km, respectively. With tectono-physicochemical field analysis, the authors concluded that the favorable mineralization location is the transitional zone among high-value areas and low-value areas of measured tectonic physicochemical parameters in Fushan district, Linglong gold field, and forcasted some hidden ore deposits in an unknown area.
出处
《华南地质与矿产》
CAS
1998年第4期1-13,共13页
Geology and Mineral Resources of South China
基金
国家计委科技找矿项目(JG947110)
国家科委基础研究特别支持项目(KG94-83)
国家攀登项目专题(95-预-39
6-3)
关键词
构造物理化学
构造附加静水压力
油气运移
榴辉岩
形成深度
构造校正测算
成矿作用
tectono-physicochemistry tectonic additional hydrostatic pressure oil-gas driving formational depth of eclogite structure-correction reckoning
