Lead, zinc and cadmium accumulation in herbaceous species and soils in Lanping Pb/Zn mining area, Yunnan Province, China

The Dongzhongla Pb-Zn deposit, a newly-discovered medium-sized deposit, is located in the north margin of the eastern Gangdese, central Lhasa block. Based on the analysis of the ore-forming geological conditions in this deposit, sulfur isotope of this deposit were analyzed, and S isotopic equilibrium temperature of mineral pairs (sphalerite and galena) were calculated. This study has shown that the sulfur isotopic equilibrium temperature of sphalerite and galena in Dongzhongla Pb-Zn deposit ranged from 185℃ to 296℃. It indicated that the equilibrium temperature decreased gradually from the skarn stage to sulfide stage. The equilibrium temperature can be used as the reference of metallogenic temperature for Dongzhongla Pb-Zn deposit. DongzhongLa deposit is the typical type of skarn Lead-zinc deposit. East of the Dongzhongla mining area is the priority exploration area.

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Application of Audio-Magnetotelluric Method for Exploration the Concealed Ore-Bodies in Yuele Lead-Zinc Ore Feild, Daguan County, NE Yunnan Province, China

Journal of Geoscience and Environment Protection ◽

10.4236/gep.2014.23005 ◽

2014 ◽

Vol 02 (03) ◽

pp. 35-45 ◽

Cited By ~ 1

Author(s):

Tran Trong Lap ◽

Chuandong Xue ◽

Aiying Wei ◽

Lv Liu ◽

Wenyao Li ◽

...

Keyword(s):

Yunnan Province ◽

Ore Bodies ◽

Lead Zinc ◽

Magnetotelluric Method

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Rational size and stability analysis of horizontal isolated pillars in deep mining from caving to filling method

E3S Web of Conferences ◽

10.1051/e3sconf/202130301040 ◽

2021 ◽

Vol 303 ◽

pp. 01040

Author(s):

Fan Feng ◽

Xibing Li ◽

Shaojie Chen ◽

Dingxiao Peng ◽

Zhuang Bian

Keyword(s):

Numerical Simulation ◽

Three Dimensional ◽

Mining Area ◽

Middle Section ◽

Deep Mining ◽

Metal Mines ◽

Lead Zinc ◽

Filling Method ◽

Zinc Mine ◽

Cut And Fill

For mining using the caving and filling methods in metal mines, determining a suitable size for the isolated pillars—the connecting part of the extension from shallow to deep—is crucial for ensuring safety and efficiency. Considering actual cases involving deep caving and cut-and-fill mining in the Chifeng Hongling lead-zinc mine in Inner Mongolia, China, the reserved thickness range of the horizontal isolation layer is obtained via theoretical analysis. On this basis, the pre-processing software HyperMesh is used to build a high-precision hexahedral grid model of the mining area, and the three-dimensional geological model of the mining area is imported into the finite-difference software FLAC3D. The stress field, displacement field, and plastic area evolution law of pillars (horizontally isolated pillars and adjacent rib pillars) in the stope of the ninth middle section after excavation are analyzed via numerical simulation inversion of the selected scheme of horizontal isolated pillars. The numerical simulation results show that the scheme employed to retain the upper horizontal isolated pillars in the ninth middle section involves reserving thicknesses of 8 m and 32 m at average ore body thicknesses of 15 m and 35 m, respectively. These results can provide theoretical guidance and a basis for safe and efficient mining of deep metal mines.

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Assessment of multiple exposure to chemical elements and health risks among residents near Huodehong lead-zinc mining area in Yunnan, Southwest China

Chemosphere ◽

10.1016/j.chemosphere.2017.01.055 ◽

2017 ◽

Vol 174 ◽

pp. 613-627 ◽

Cited By ~ 32

Author(s):

Yirun Wang ◽

Ruming Wang ◽

Liyun Fan ◽

Tiantian Chen ◽

Yahong Bai ◽

...

Keyword(s):

Health Risks ◽

Southwest China ◽

Chemical Elements ◽

Mining Area ◽

Multiple Exposure ◽

Lead Zinc

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Analysis of Ore-Controlling Factors and Prospecting Potential of the Luziyuan Lead-Zinc Deposit in West of Yunnan

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.807-809.2197 ◽

2013 ◽

Vol 807-809 ◽

pp. 2197-2200

Author(s):

Zhi Cai Xiao ◽

Ming Guo Deng

Keyword(s):

Yunnan Province ◽

Geological Structure ◽

Controlling Factors ◽

Horizontal Distance ◽

Ore Formation ◽

Zinc Deposit ◽

Deep Fault ◽

North East ◽

Zone Control ◽

Lead Zinc

Luziyuan lead-zinc deposit located in Fengwei, Zhenkang,Yunnan Province, at the direction of 140°, horizontal distance is about 10km. The deposit closely related to acidic magmatism and geological structure. According to the latest exploration results of Yunnan Geological Survey, the amount of lead-zinc resources is 280 million tons, it is super-mega deposit. Mineralization factors as tectonics, deep fault, concealed rock, ore formation and surface north-east trending fault zone control the formation of the deposit. Gravity abnormal, magnetic abnormal, geochemical abnormal and associated mineralization of the mine relate to prospecting potential.

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