摘要
成矿系统结构对成矿动力学条件的约束与促进,引起系统固有聚矿功能的巨大变异。成矿系统动力学包括:系统运转的动力组合、系统物质运动总方向和轨迹、矿质活动空间规模形态及单位空间中成矿微过程的频度。系统结构定性分析表明:系统结构的完善程度和成矿动力学条件的优劣与系统聚矿功能的强度正相关。系统结构完善程度可由结构紧致度(I)表征,系统聚矿功能可用标准富集量(Qs)反映,它是矿床储量(Q0)经成矿难度系数(C)变换的归一化指标。经结构定性半定量分析,对成矿系统聚矿功能作出初步排序。
The Metallogenic
system structure may influence greatly the ore forming function by controlling over the
metallogenic dynamic conditions,namely:the kinds of energy to start and to maintain the
system processes;the general moving direction of ore forming materials;morphology and size
of system space,and finally the repetitiveness of the metallogenic microprocess in unit system.
Qualitative system structure analysis indicates that the intensity of metallogenic function of a
system is positively correlated with the perfectness of system structure and the superiority of
metallogenic dynamic conditions.A perfect structure means a compact structure that is
measured by the compactness of system structure (I), while the ore forming function is
characterized by the standardized reserve (Q s) transformed from the ore reserve (Q 0)
with the metallogenic difficulty coefficients.After the qualitative quantitative correlation,a
sequential comparison of the ore forming intensity of basic system structures has been made
and the system Ⅲ b and Ⅴ,distinguished for their strong non linear metallogeny, are
considered as the outstanding members in ore forming of the mega system.
出处
《地学前缘》
EI
CAS
CSCD
1999年第1期103-113,共11页
Earth Science Frontiers
关键词
成矿系统结构
聚矿功能
标准富集量
成矿动力学
metallogenic structure,ore forming function of system,compactness of system
structure,standardized reserve,metallogenic dynamics,non linear metallogeny