Youqiang Qi

Institute of Geochemistry

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Ruizhong Hu

Institute of Geochemistry

Caixia Feng

Northwest University

Guangying Feng

Chinese Academy of Geological Sciences

Ian M. Coulson

University of Regina

Shan Gao

Zhongda Hospital Southeast University

Yuhong Yang

Institute of Geochemistry

СL

Сhen Liu

Northwest University

Tao Wang

Chinese Academy of Geological Sciences

Shen Liu

State Key Laboratory of Continental Dynamics

Chaogui Yang

Institute of Geochemistry

Cooperative Institutions

Chinese Academy of Sciences

Institute of Geochemistry

University of Chinese Academy of Sciences

State Key Laboratory of Continental Dynamics

Northwest University

Jilin University

China University of Geosciences

Chinese Academy of Geological Sciences

Ministry of Natural Resources

Peking University

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Origin of the ore-forming fluids of the Tongchang porphyry Cu–Mo deposit in the Jinshajiang–Red River alkaline igneous belt, SW China: Constraints from He, Ar and S isotopes

Journal of Asian Earth Sciences (2013)

Lei-Luo Xu Xian‐Wu Bi Ruizhong Hu Yongyong Tang Guo-Hao Jiang

δ34S

Large igneous province

10.1016/j.jseaes.2013.02.013

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Citations (22)

Trace and minor elements in sulfides from the Lengshuikeng Ag–Pb–Zn deposit, South China: A LA–ICP–MS study

Ore Geology Reviews (2021)

Youqiang Qi Ruizhong Hu Jianfeng Gao Cheng‐Biao Leng Wei Gao

Sphalerite, pyrite and galena are common sulfide minerals in Zn–Pb–(Ag) deposits, containing minor and trace elements that can be used to constrain the ore-forming processes. The Lengshuikeng Ag–Pb–Zn deposit (LSKD) is one of the largest silver deposits in China. The mode of silver occurrence in sulfides remains unclear except for individual silver minerals. In this study, we analyzed the minor and trace element contents of sulfide minerals from massive, vein, and veinlet-disseminated ores by in-situ laser ablation–inductively coupled plasma–mass spectrometry (LA–ICP–MS). The elemental compositions of sulfide minerals are variable. Combining petrographic observations and previous studies, we suggest that the sulfide minerals from two types of mineralization (porphyry and strata-bound types) were formed in a same hydrothermal system, and their content of minor and trace elements mainly is influenced by temperature, alteration of wall rocks and composition change of hydrothermal fluid. The Ag content in galena ranges n*103 ∼ n*104 ppm, whereas that in both sphalerite and pyrite ranges from n*10 ∼ n*103 ppm. Except for galena, a higher content of gold (mean = 0.76 ppm) and silver (mean = 151 ppm) occurs in sphalerite compared with the content of gold (mean = 0.26 ppm) and silver (mean = 69.9 ppm) in pyrite. Generally, altered samples display higher Ag and Au contents in pyrite and sphalerite. Silver occurs in the form of a solid solution in sulfides from samples with massive textures, and as micro-inclusions in sulfides from altered samples. The contents of minor and trace elements (e.g. Cd and In) and their ratios (Ga/In, Zn/Cd and Cd/Fe) are not always sensitive to the temperature and processes of deposit formation. We suggest that sulfides from samples with massive texture and limited alteration are suitable for determining the genetic type of the deposit. Our results show that the hydrothermal fluid is a magmatic fluid related to porphyry granite in the LSKD.

Sulfide Minerals

Trace element

10.1016/j.oregeorev.2021.104663

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Citations (15)

Mantle volatiles and heat contributions in high sulfidation epithermal deposit from the Zijinshan Cu-Au-Mo-Ag orefield, Fujian Province, China: Evidence from He and Ar isotopes

Chemical Geology (2017)

Li-Yan Wu Ruizhong Hu Xiaofeng Li Finlay M. Stuart Guo-Hao Jiang

Sulfidation

10.1016/j.chemgeo.2017.08.005

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Citations (26)

Age and origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China: U–Pb zircon age and whole-rock geochemical and Sr–Nd isotopic constraints

International Geology Review (2011)

Shen Liu Ruizhong Hu Shan Gao Caixia Feng Ian M. Coulson

Geochronological, geochemical, and whole-rock Sr–Nd isotopic analyses were performed on a suite of Palaeozoic nepheline syenites from Zijinshan to characterize their ages and petrogenesis. Laser ablation inductively coupled plasma-mass spectrometry U–Pb zircon analyses yield consistent ages of 525.7 ± 2.8 million years for a sample (HYK01). These intrusive rocks belong to the foid syenite magma series in terms of K2O + Na2O contents (14.3–15.2 wt.%) and to the shoshonitic series based on their high K2O contents (5.42–5.61 wt.%). The nepheline syenites are further characterized by high light rare earth element contents [(La/Yb) N = 29.1–36.1]; show modest negative Eu anomalies (δEu = 0.5–0.6) and positive anomalies in Rb, Th, U, Pb, Zr, and Hf; are depleted in Ba and high field strength elements (P and Ti). In addition, all the nepheline syenites in this study display relatively low radiogenic Sr (87Sr/86Sr) i (0.7042–0.7043) and positive ϵNd (t) (0.7–0.8). These results suggest that the nepheline syenites were derived from depleted continental crust. The parent magmas likely experienced fractional crystallization of plagioclase, Ti-bearing oxides (e.g. rutile, ilmenite, and titanite), apatite, and zircon during ascent, with negligible crustal contamination before final emplacement at a high crustal level.

Nepheline syenite

Nepheline

Petrogenesis

Radiogenic nuclide

Fractional crystallization (geology)

Titanite

10.1080/00206814.2011.638436

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Citations (5)

Mineral Chemical Characteristics and Indication of Mineralization of Lengshuikeng Ag‐Pb‐Zn Feposit, Jiangxi, South China

Acta Geologica Sinica - English Edition (2014)

Youqiang Qi Ruizhong Hu Xiaofeng Li Cheng‐Biao Leng Li-Yan Wu

10.1111/1755-6724.12367_16

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Citations (1)

Petrogenesis and geodynamic setting of Early Cretaceous mafic–ultramafic intrusions, South China: A case study from the Gan–Hang tectonic belt

Lithos (2016)

Youqiang Qi Ruizhong Hu Сhen Liu Ian M. Coulson Hua‐Wen Qi

Lile

Ultramafic rock

Petrogenesis

Primitive mantle

Lithophile

10.1016/j.lithos.2016.04.027

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Citations (35)

Ore-forming material sources of the Dachayuan uranium deposit, Zhejiang Province: Evidence from C-O and Sr-Nd isotopes

Acta Petrologica Sinica (2019)

Jianji Tian ZHANG GuoQuan Shang Peng-qiang Youqiang Qi

赣杭铀成矿带是我国最大的火山岩型铀成矿带，大茶园（661）铀矿床是该成矿带东段最重要的火山岩型铀矿床，矿体赋存于晚中生代磨石山群九里坪组流纹岩中。为探讨该铀矿床成矿物质来源，对采自大茶园铀矿床中的脉石矿物开展了系统的C-O和Sr-Nd同位素研究。结果表明，成矿流体中矿化剂∑CO2主要来源于地幔，部分来自于基底大理岩或沉积碳酸盐岩碳；成矿期后方解石碳同位素组成靠近基底大理岩或沉积碳酸盐岩组成，可能主要为壳源碳酸盐岩的贡献；成矿期流体中∑CO2以HCO3-为主，CO2去气作用为方解石沉淀形成的主要机制。成矿期不同阶段方解石与萤石的Sr、Nd同位素组成没有明显差别且变化较小，显示矿床中脉石矿物的同源性。通过与基底陈蔡群变质岩和盖层火山岩的Sr、Nd同位素组成对比发现，成矿期萤石与盖层火山岩具有类似的Sr同位素组成，表明大茶园铀矿床成矿物质以壳源为主，主要来自于赋矿火山岩，而Nd同位素进一步表明成矿物质可能来源于赋矿的流纹岩。岩石圈伸展控制着富CO2热液的形成，富CO2热液在上升过程中萃取壳源（尤其是富铀火山岩）中成矿物质，并在有利的成矿部位通过CO2去气作用导致铀沉淀成矿。

Isotopes of strontium

Uranium ore

10.18654/1000-0569/2019.09.13

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Citations (1)

Accurate determination of stable silver isotopes in zinc-rich samples by effective separation of silver and zinc

Journal of Analytical Atomic Spectrometry (2024)

Haotian Gong Youqiang Qi Ting-Guang Lan Haifeng Fan Youwei Chen

A modified two-stage ion exchange procedure for the effective purification of silver from zinc-rich samples was presented, ensuring the accurate determination of stable silver isotopes.

Matrix (chemical analysis)

Isotopes of zinc

10.1039/d4ja00125g

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Citations (0)

U–Pb zircon age, geochemical and Sr–Nd isotopic data as constraints on the petrogenesis and emplacement time of the Precambrian mafic dyke swarms in the North China Craton (NCC)

Lithos (2012)

Сhen Liu Ruizhong Hu Shan Gao Caixia Feng Ian M. Coulson

Petrogenesis

10.1016/j.lithos.2012.01.002

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Citations (31)