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Wang, Li-Gong; Yang, Li-Qiang; Yang, Wei; Zhi, Yun-Bao; Xie, Dong; Sun, Bin; Zhang, Wen; Li, Xiu-Zhang; Wang, Ying-Peng; Wang, Jin-Hui (2025) Genesis and exploration potential of gold deposits in Archean high-amphibolite facies metamorphic rocks of the Jiaodong Peninsula: Geological and geochemical constraints from the Majiayao gold deposit. Ore Geology Reviews, 106596 doi:10.1016/j.oregeorev.2025.106596

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Reference TypeJournal (article/letter/editorial)
TitleGenesis and exploration potential of gold deposits in Archean high-amphibolite facies metamorphic rocks of the Jiaodong Peninsula: Geological and geochemical constraints from the Majiayao gold deposit
JournalOre Geology Reviews
AuthorsWang, Li-GongAuthor
Yang, Li-QiangAuthor
Yang, WeiAuthor
Zhi, Yun-BaoAuthor
Xie, DongAuthor
Sun, BinAuthor
Zhang, WenAuthor
Li, Xiu-ZhangAuthor
Wang, Ying-PengAuthor
Wang, Jin-HuiAuthor
Year2025
Page(s)106596
URL
DOIdoi:10.1016/j.oregeorev.2025.106596Search in ResearchGate
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Mindat Ref. ID18259019Long-form Identifiermindat:1:5:18259019:5
GUID0
Full ReferenceWang, Li-Gong; Yang, Li-Qiang; Yang, Wei; Zhi, Yun-Bao; Xie, Dong; Sun, Bin; Zhang, Wen; Li, Xiu-Zhang; Wang, Ying-Peng; Wang, Jin-Hui (2025) Genesis and exploration potential of gold deposits in Archean high-amphibolite facies metamorphic rocks of the Jiaodong Peninsula: Geological and geochemical constraints from the Majiayao gold deposit. Ore Geology Reviews, 106596 doi:10.1016/j.oregeorev.2025.106596
Plain TextWang, Li-Gong; Yang, Li-Qiang; Yang, Wei; Zhi, Yun-Bao; Xie, Dong; Sun, Bin; Zhang, Wen; Li, Xiu-Zhang; Wang, Ying-Peng; Wang, Jin-Hui (2025) Genesis and exploration potential of gold deposits in Archean high-amphibolite facies metamorphic rocks of the Jiaodong Peninsula: Geological and geochemical constraints from the Majiayao gold deposit. Ore Geology Reviews, 106596 doi:10.1016/j.oregeorev.2025.106596
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Abstract/NotesThe Jiaodong Peninsula, China, hosts the giant Jiaodong gold province, containing over 5,800 tonnes of proven gold resources. While 87% of these deposits reside in Mesozoic granites, the remaining 11% occur within Archean metamorphic terranes. Notably, the origin, enrichment processes, and genetic model of the Majiayao gold deposit the largest hosted in Archean metamorphic rocks, remain poorly constrained. This study comprehensively analyzes the deposit geology, fluid inclusions, isotopes, and trace elements of the Majiayao deposit, aiming at clarifying the genesis of the deposit and perfecting the overall genetic model of Jiaodong gold deposits. The Majiayao mineralization exhibited a four-stage sequence: (1) milky quartz-sericite, (2) quartz-pyrite, (3) quartz-siderite-polymetallic sulfide, and (4) quartz-carbonate. Detailed petrographic analyses identified three fluid inclusion types: H2O-CO2-NaCl ± CH4 (Type I), CO2 (Type II), and H2O-NaCl (Type III). Homogenization temperatures of fluid inclusions in the four stages (from early to late) ranged from 198-298 °C, 136–289 °C, 112–264 °C, and 139–179 °C, corresponding to salinities of 3.33–11.05 wt%, 2.77–12.51 wt%, 2.41–12.51 wt%, and 0.18–4.03 wt% NaCl equivalent. These data collectively suggest that the ore-forming fluids belong to a medium-temperature, medium–low salinity H2O-CO2-NaCl ± CH4 system, enriched in CO2 with minor CH4. This system evolved from medium to medium–low temperatures, shifting from CO2-rich to H2O-rich compositions, and from fluid immiscibility to fluid mixing. LA-ICP-MS analysis of pyrite revealed Au concentrations ranging from 0.008 to 12.909 ppm (median = 0.024 ppm) in Py2 and 0.025 to 2.330 ppm (median = 0.129 ppm) in py3. These results indicated extremely low invisible gold content associated with brittle deformation. The key mechanisms for gold mineralization were inferred to be sulfidation, characterized by the saturation and precipitation of abundant low-As pyrite and other sulfide minerals, alongside fluid phase separation. Lead isotope compositions (206Pb/204Pb = 16.451–16.674, 207Pb/204Pb = 15.211–15.353, 208Pb/204Pb = 36.979–37.803) indicated that ore-forming materials likely originated from the lower crust. Compared to typical Jiaodong-type gold deposits, the Majiayao deposit exhibited similar fluid inclusion characteristics and H-O-S isotopic signatures, but with slightly lower mineralization temperatures, a narrower range of δ18OH2O values, and distinct lead isotope compositions. Compared to the depth of 5–9 km in Zhaoyuan-Laizhou gold belt, the Majiayao deposit displays a comparatively shallow estimated mineralization depth of 3.3–6.0 km, suggesting that the deep part of this region still has significant exploration potential.

References Listed

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Bao (1990) Bullet. Shenyang Instit. Geol. Miner. Resour., Chin. Acad. Geol. Sci. Discussion on Geology and genesis of Majiayao gold deposit 21, 34
Bai (2024) NE China. Ore Geol. Rev. Geological, fluid inclusion, H–O isotopic, and U–Pb geochronological constraints on the genesis of the Xiahuolong gold deposit, southern Jilin Province 164
Brill (1989) Canad. Mineral. Trace-element contents and partitioning of elements in ore minerals from the CSA Cu–Pb–Zn deposit, Australia 27, 263
Feng (2020) China. Ore Geol. Rev. Geology and geochronology of the Shijia gold deposit, Jiaodong Peninsula 120
Feng (2021) China. Ore Geol. Rev. Contribution of Precambrian basements to the Mesozoic ore-fluid system: An illustration using the Majiayao gold deposit, Jiaodong 139
Goldfarb (2005) Economic Geology 100th Anniversary Distribution, character, and genesis of gold deposits in metamorphic terranes Volume, 407
Not Yet Imported: - book-chapter : 10.5382/SP.22.08

If you would like this item imported into the Digital Library, please contact us quoting Book ID 9781629496412
Guo (2014) Jiaodong. Acta Petrol. Sin. Hydrogen and oxygen isotopes geochemistry of the Wang'ershan gold deposit 30, 2481
Hu (2008) Land Resour. Shandong Provin. Geochemical characteristics of ore-forming fluid in Majiayao gold deposit in Qixia City 24, 26
Li (2018) Jiaobei. Earth Sci. Front. Carbon isotope compositions and geochemical characteristics of the Zhangshe graphite deposit of the Jingshan Group 25, 19
Li (1990) Contribut. Geol. Miner. Resour. Res. Geological and geochemical characteristics and genesis of Majiayao gold ore deposit, Shandong Province 5, 36
Liu (2015) Acta Petrol. Sinica Progresses and overviews of voluminous meta-sedimentary series within the Paleoproterozoic Jiao-Liao-Ji orogenic/mobile belt, North China Craton 31, 2816
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Not Yet Imported: - journal-article : 10.1016/j.sesci.2021.07.002

If you would like this item imported into the Digital Library, please contact us quoting Journal ID
Tian (2020)
Wan (2017) Geol. Bull. China Early Precambrian evolution of the Qixia area, eastern North China Craton: Evidence from geological mapping and SHRIMP U-Pb zircon dating 36, 1927
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Yang (2014) Geotectonica et Metallogenia Compositions and Genesis of the Fault Gouge in the Ore-controlling Fault in Jiaodong Peninsula: A Case Study from the Xinli Gold Deposit 38, 908
Yang (2014) Acta Petrol. Sin. Mesozoic gold metallogenic system of the Jiaodong gold province, eastern China 30, 2447
Yang (2024) Earth Sci. Front. Developing structural control models for hydrothermal metallogenic systems: Theoretical and methodological principles and applications 31, 239
Yang (2024) Acta Petrol. Sin. Jiaodong-type gold deposit 40, 1691
Not Yet Imported: Acta Petrologica Sinica - journal-article : 10.18654/1000-0569/2023.02.05

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Zhai (1998) Mineral Deposits Mineral, ore-forming fluid and ISOTOPE characteristics of the Qixia gold deposit and their implications 17, 20
Zhang (2024) Front. Earth Sci. Characterization of deep ore-forming fluid in the Zhaoxian gold deposit within the Jiaodong gold province: insights from quartz vein fluid inclusion, in-situ trace element analysis, and S isotopic composition in pyrite 12

Map of Localities

Locality Pages

LocalityCitation Details
Jiaodong Peninsula (Jiaodong Gold Province), Shandong, China
Majiayao Au deposit, Qixia City, Yantai, Shandong, China

Mineral Occurrences

LocalityMineral(s)
Majiayao Au deposit, Qixia City, Yantai, Shandong, China Amphibolite, Ankerite, Aplite, Calcite, Chalcopyrite, Chlorite Group, Dolerite, Dolomite, Electrum, Galena, Gneiss, Hornblende diorite, Lamprophyre, Milky Quartz, Muscovite, Native Gold, Plagioclase, Pyrite, Quartz, Sericite, Siderite, Sphalerite, Zircon


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