[an error occurred while processing this directive] Global Geology 2017, 20(4) 191-199 DOI:   10.3969/j.issn.1673-9736.2017.04.01  ISSN: 1673-9736 CN: 22-1371/P
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ore-forming fluid characteristics
ore genesis
hydrothermal vein type
Xiaohongshilazi Pb-Zn deposit
Jilin Province
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LI Yong
REN Yunsheng
HAO Yujie
YANG Qun
PubMed
Article by Li Y
Article by Ren Y
Article by Hao Y
Article by Yang Q
Ore-forming fluid characteristics and genesis of vein-type lead-zinc mineralization of Xiaohongshilazi deposit,Jilin Province, China
LI Yong, REN Yunsheng, HAO Yujie, YANG Qun
College of Earth Sciences, Jilin University, Changchun 130061, China
ժҪ�� The Xiaohongshilazi mineral deposit in Jilin Province, China, is located in the accretion zone in the northern margin of the North China Block. The deposit contains two types of ore bodies:layered Pb-Zn ore bodies in volcanic rock and vein-hosted Pb-Zn ore bodies controlled by fractures. The vein Pb-Zn ore bodies are strictly controlled by tectonic fracture zones trending in S-N direction, which comprise sulfide veins or sulfide-bearing quartz veins distributed along faults or structural fissures. The ores mainly appear mesh-vein and vein structures, and also show solid-solution separation and metasomatic textures. The metal minerals are mainly sphalerite, galena, and pyrite, etc. Wall-rock alteration includes mainly sericitization, chloritization, silicification and carbonatization, etc. Microscope observations and Raman spectroscopy analyses indicate that the ore-forming fluid of the vein Pb-Zn ore bodies was mainly magmatic water with low temperature, low salinity, and a shallow depth of metallogenesis (~1.5 km). Sulfur and lead isotope analyses indicate that the sulfide source is mainly formation sulfur or biogenic sulfur, which is similar to the sulfur source of hydrothermal deposit (negative (δ34S values), while the main Pb source was the upper crust with some mantle input. This article argues that the vein Pb-Zn ore body of the Xiaohongshilazi deposit is a low-to medium-temperature hydrothermal vein type related to the formation of a shallow magma chamber.
�ؼ����� ore-forming fluid characteristics   ore genesis   hydrothermal vein type   Xiaohongshilazi Pb-Zn deposit   Jilin Province  
Ore-forming fluid characteristics and genesis of vein-type lead-zinc mineralization of Xiaohongshilazi deposit,Jilin Province, China
LI Yong, REN Yunsheng, HAO Yujie, YANG Qun
College of Earth Sciences, Jilin University, Changchun 130061, China
Abstract: The Xiaohongshilazi mineral deposit in Jilin Province, China, is located in the accretion zone in the northern margin of the North China Block. The deposit contains two types of ore bodies:layered Pb-Zn ore bodies in volcanic rock and vein-hosted Pb-Zn ore bodies controlled by fractures. The vein Pb-Zn ore bodies are strictly controlled by tectonic fracture zones trending in S-N direction, which comprise sulfide veins or sulfide-bearing quartz veins distributed along faults or structural fissures. The ores mainly appear mesh-vein and vein structures, and also show solid-solution separation and metasomatic textures. The metal minerals are mainly sphalerite, galena, and pyrite, etc. Wall-rock alteration includes mainly sericitization, chloritization, silicification and carbonatization, etc. Microscope observations and Raman spectroscopy analyses indicate that the ore-forming fluid of the vein Pb-Zn ore bodies was mainly magmatic water with low temperature, low salinity, and a shallow depth of metallogenesis (~1.5 km). Sulfur and lead isotope analyses indicate that the sulfide source is mainly formation sulfur or biogenic sulfur, which is similar to the sulfur source of hydrothermal deposit (negative (δ34S values), while the main Pb source was the upper crust with some mantle input. This article argues that the vein Pb-Zn ore body of the Xiaohongshilazi deposit is a low-to medium-temperature hydrothermal vein type related to the formation of a shallow magma chamber.
Keywords: ore-forming fluid characteristics   ore genesis   hydrothermal vein type   Xiaohongshilazi Pb-Zn deposit   Jilin Province  
�ո����� 2017-05-05 �޻����� 2017-05-25 ����淢������  
DOI: 10.3969/j.issn.1673-9736.2017.04.01
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