On deposits controlled by tectonic lenses
On deposits controlled by tectonic lenses作者机构：Chinese Academy of Sciences Guangzhou Institute of Geochemistry Guangzhou China Department of Civil Geological and Mining Engineering Montreal Institute of Technology Canada
出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)
年 卷 期：2004年第47卷第12期
页 面：1095-1101页
核心收录：
学科分类：070904[理学-构造地质学] 0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 0704[理学-天文学]
基 金：supported by the National Natural Science Foundation of China(Grant No.40072022) the Knowledge Innovative Program of the Chinese Academy of Sciences(Grant No.KZCX2-SW-117)
主 题：tectonic lenses, boundary type of tectonic lenses, type of metallostructures, tectonic lens as an ore-forming system.
摘 要：By study of the typical tectonic lenses controlling some ore deposits, the tectonic lens boundaries may be classified into fuzzy boundaries, sharp boundaries and complex boundaries, and the metallostructures in tectonic lenses may be classified into vein-type, stock- work-type and breccia-type. After studying their metallostructures, we suggest the conception on tectonic lenses as an ore-forming system, realizing that the compact-function ore-forming system is made up of the lenticular weak-strain domain(Q) and its outside linear strong-strain belt(P). The ore-forming system, which is composed of four subsystems that coupled with each other and exert their system functions to the full, includes the dual-dynamical system made up of tectonic and fluid dynamics, the metallotectonic system controlled by hydrofracturing, the ore-source system made up of multi-substances and the mineral transportation system contacted by tectonic network. Deformational partitioning, hydrofracturing and tectonic pumping operate the consid- erable function while the system function practises. Finally, the significance of metallotectonics on the tectonic lenses is discussed in the paper.
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