Citation: | QIAN Jianping, WU Zhengpeng, TANG Zhuanwu, XU Lei, JIA Yuheng. Ore-controlling and metallogenic role of interlayer-slide fault in the carbonate formation, southern China[J]. Geological Bulletin of China, 2020, 39(11): 1850-1857. |
The interlayer-slide faults in the carbonate series are widely distributed in the Paleozoic strata in southern China. These faults constitute an important ore-controlling and forming structure. Determining the basic types, formation mechanism, and ore-controlling effects of the interlayer-slide faults is of great significance in the search for related deposits. Based on the lithological combination of the ore-bearing rock series, structural style and the relationship with the main fault, the authors divided the interlayer-slide faults into four basic types:the compound type of carbonate and shale boundary with interlayer-slide fault, the disconformities boundary with interlayer-slide fault, the thrusting nappe structure with stepped ramp and flat, and steeper slope master fault with gently inclined secondary interlayer-slide faults. The ore-controlling characteristics of different types of interlayer faults and typical examples were introduced and the roles of interlayer faults in ore-controlling and metallogenic process was discussed. Three stages of the formation of the interlayer-slide fault were summarized, which are slide fault in interlayer, interlayer-slide fault and superimposed fault.
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Diagram of structural layered ore-forming characteristics of the major orefields in the Tongling ore concentration area
The occurrence characteristics of orebody of the Getang gold deposit
Geological section along No. 32 exploration line in the Zimudang gold deposit
Geological section along No. 208 exploration line in the Fankou gold deposit