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Geochemical Characteristics and Genesis of Intrusive Ore-Forming Rock Bodies in the Kuru-Tegerek Copper-Gold Deposit, Kyrgyzstan
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Yuxuan LI1, 2, Bo CHEN3, Bin WANG3, *, Fang AN1, Pak Nikolal4
Northwestern Geology | 2026, 59(1) : 172 - 188
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Northwestern Geology | 2026, 59(1): 172-188
Geochemical Characteristics and Genesis of Intrusive Ore-Forming Rock Bodies in the Kuru-Tegerek Copper-Gold Deposit, Kyrgyzstan
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Yuxuan LI1, 2, Bo CHEN3, Bin WANG3, *, Fang AN1, Pak Nikolal4
Affiliations
  • 1State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi’an 710069, Shaanxi, China
  • 2Xi'an Northwest Non-ferrous Geophysical and Chemical Exploration Group Co., Ltd, Xi'an 710068, Shaanxi, China
  • 3Xi'an Center of China Geological Survey, Xi’an 710119, Shaanxi, China
  • 4Geological Institute of theNational Academy of Sciences of the Kyrgyz Republic, Bishkek 996312, Kyrgyzstan
Published: 2026-02-20 doi: 10.12401/j.nwg.2024135
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The Kuru-Tegerek copper-gold deposit is located in the Chatkal tectonic belt of the western segment of the Central Asian orogenic belt in Kyrgyzstan. It is a large skarn-type copper-gold deposit. In order to better understand the magmatic properties and petrogenesis of the ore-forming rock bodies in the Kuru-Tegerek copper-gold deposit, detailed petrographic and geochemical studies have been conducted on the ore-forming rock bodies in the mining area. The results show that the ore-forming rock bodies are granodiorites, belonging to the peraluminous calc-alkaline I-type granite series, with light rare earth elements enriched relative to heavy rare earth elements (LaN/YbN = 7.6～16.4), no significant Eu and Ce anomalies (δEu = 0.84～1.00; δCe = 1.04～1.05), and relatively enriched Rb, Ba, Zr, and Hf, while U, Th, Sr, Nb, Ta, and Nd are relatively depleted. The apatite in the granodiorite is enriched in light rare earth elements relative to heavy rare earth elements (LREE/HREE=3.42～17.15), showing strong negative Eu anomalies (δEu=0.12～0.47) and no significant Ce anomalies; zircons are strongly enriched in heavy rare earth elements (LREE/HREE=0.02～0.13), mostly showing strong negative Eu anomalies and positive Ce anomalies (δEu=0.03～0.31, δCe=1.3～80.9). The trace element geochemical characteristics of apatite and zircon indicate that the temperature of the ore-forming magma is about 742～779℃, with high magmatic oxygen fugacity (ΔFMQ=0.4～3.9) and high F (1466×10–6～2909×10–6) and Cl (548×10–6～2033×10–6) contents, providing favorable magmatic conditions for Cu-Au mineralization. The Kuru-Tegerek copper-gold deposit may have been formed during the late Early Carboniferous period when the Turkestan oceanic crust subducted northward, and the mantle wedge was partially melted by the metasomatic components of the subducting slab, resulting in high oxygen fugacity and volatile-rich (F, Cl) magma intrusion into the Lower Carboniferous Duoneixi Formation limestone. The interaction between the ore-bearing magmatic hydrothermal fluid and the limestone formed the deposit.

Central Tianshan  /  Kuru-Tegerek Cu-Au deposit  /  metallogenic rock body  /  magma property  /  petrogenesis
李宇轩, 陈博, 王斌, 安芳, Pak Nikolal. 吉尔吉斯斯坦库鲁–捷格列克铜金矿床成矿岩体地球化学特征及其地质意义. 西北地质, 2026 , 59 (1) : 172 -188 . DOI: 10.12401/j.nwg.2024135
Yuxuan LI, Bo CHEN, Bin WANG, Fang AN, Pak Nikolal. Geochemical Characteristics and Genesis of Intrusive Ore-Forming Rock Bodies in the Kuru-Tegerek Copper-Gold Deposit, Kyrgyzstan[J]. Northwestern Geology, 2026 , 59 (1) : 172 -188 . DOI: 10.12401/j.nwg.2024135
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Year 2026 volume 59 Issue 1
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doi: 10.12401/j.nwg.2024135
  • Receive Date：2024-04-03
  • Online Date：2026-09-16
  • Published：2026-02-20
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  • Received：2024-04-03
  • Revised：2024-06-27
  • Accepted：2025-01-04
Affiliations
    1State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi’an 710069, Shaanxi, China
    2Xi'an Northwest Non-ferrous Geophysical and Chemical Exploration Group Co., Ltd, Xi'an 710068, Shaanxi, China
    3Xi'an Center of China Geological Survey, Xi’an 710119, Shaanxi, China
    4Geological Institute of theNational Academy of Sciences of the Kyrgyz Republic, Bishkek 996312, Kyrgyzstan
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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