Structural Systems of Fankou Lead-Zinc Orefield in Renhua County, Guangdong Province, China

Li, Ying Shu; Dong, Yang; He, Da Qing; Chen, Jiao Jiao; Zhang, Yi Ke; Yang, Cheng Zhi; Cai, Yanjun

doi:10.4028/www.scientific.net/amr.807-809.2267

Cited by 2 publications

(2 citation statements)

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“…The strike and dip of the F 3 fault are 73~101 • and 60~84 • , respectively. The width of the fault fluctuates from 0.2 m to 3.0 m, and it is filled with a considerable amount of surrounding rock breccia and ore breccia [37].…”

Section: Engineering Background 21 Geological Structurementioning

confidence: 99%

Method for Identifying and Forecasting Mining-Induced Earthquakes Based on Spatiotemporal Characteristics of Microseismic Activities in Fankou Lead/Zinc Mine

Deng

Wen

et al. 2022

Minerals

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The risks associated with underground mining at Fankou Lead/Zinc Mine in South China are growing due to the large-scale mining activities there. To recognize mining-induced earthquakes and assess the risk per mining level, a microseismic monitoring system, which is used to record microseismic events, is installed at multiple mining levels in Fankou Lead/Zinc Mine. The purpose of this study is to identify mining-induced earthquakes and to evaluate the risk per mining level by analyzing the spatiotemporal characteristics of microseismic activities in the Fankou Lead/Zinc Mine. In this study, the Gutenberg-Richter (G-R) relationship is applied to compute the b-value, which is used to obtain the maximum magnitude (M (max)) of microseismic event that probably occurs at each mining level. Then, the evaluation of the recurrence period for M (max) and the probability of the microseismic event with the magnitude M (max) is carried out and the M (max) at each mining level is determined based on the recording period of microseismic events. The results show that factors such as the maximum rock vibration velocity, source parameters, displacement, microseismic waveform and energy ratio (ES/EP) can be used to distinguish whether a recorded microseismic event is mining-induced earthquake. Additionally, we propose a method to assess the possibility of mining-induced earthquake at each mining level based on M (max) and predict the recurrence time of microseismic event with the magnitude M (max). The of two years results of microseismic events monitoring demonstrate that the current study is promising for identifying mining-induced earthquakes, assessing the risk of mining-induced earthquakes, predicting the potential maximum microseismic event in a region and estimating its recurrence period and its probability in the Fankou Lead/Zinc Mine.

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Section: Engineering Background 21 Geological Structurementioning

confidence: 99%

Method for Identifying and Forecasting Mining-Induced Earthquakes Based on Spatiotemporal Characteristics of Microseismic Activities in Fankou Lead/Zinc Mine

Deng

Wen

et al. 2022

Minerals

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“…Xinquan Liang (2009) believed that the ore-controlling structure is a strike-slip structural belt. Yinshu Li (2013) believed that the structure in Fankou Pb-Zn deposit is a Lambda-type structure. By field research and laboratory study of the authors of this article, the Lambda-type structure is ore-controlling structure of Fankou lead-zinc orefield.…”

Section: Introductionmentioning

confidence: 99%

Ore-Controlling Structure of Fankou Pb-Zn Mineral Deposit in Guangdong Province, China

Zhang

Tian

et al. 2013

AMR

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Orefield structures of Fankou lead-zinc deposit in Guangdong province is complex and have been argued about for years. By means of comprehensive study of indoor and outdoor,The lambda-type structure made of major fault of F203 of strike northwest and branch fault of F3, F4 of strike northnortheast is ore-controlling structure, which not only controls the shape, the occurrence and spatial distribution of the ore body, but also controls the formation and distribution of the deposit.Key region of next prospecting is near fault of northnortheast direction of hangingwall block of the F203.Key words:Pb-Zn ore deposit;Ore-controlling structure;Fankou in Guangdong Province, China

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Structural Systems of Fankou Lead-Zinc Orefield in Renhua County, Guangdong Province, China

Cited by 2 publications

References 1 publication

Method for Identifying and Forecasting Mining-Induced Earthquakes Based on Spatiotemporal Characteristics of Microseismic Activities in Fankou Lead/Zinc Mine

Method for Identifying and Forecasting Mining-Induced Earthquakes Based on Spatiotemporal Characteristics of Microseismic Activities in Fankou Lead/Zinc Mine

Ore-Controlling Structure of Fankou Pb-Zn Mineral Deposit in Guangdong Province, China

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