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Partial-melting of fertile metasedimentary rocks controlling the ore formation in the Jiangnan porphyry-skarn tungsten belt, south China: A case study at the giant Zhuxi W-Cu skarn deposit

Published on Apr 1, 2018in Lithos 3.91
· DOI :10.1016/j.lithos.2018.02.002
Shiwei Song1
Estimated H-index: 1
(PKU: Peking University),
Jingwen Mao33
Estimated H-index: 33
(PKU: Peking University)
+ 4 AuthorsYongpeng Ouyang2
Estimated H-index: 2
Cite
Abstract
Abstract The Zhuxi W-Cu deposit, located in the Jiangnan porphyry-skarn W belt, is a world-class W deposit. We studied three coeval mineralization-related intrusions composed of biotite monzogranite, fine-grained granite, and granite porphyry in the Zhuxi mine. These rocks contain peritectic garnet and K-feldspar. The LA-ICP-MS U–Pb dating of zircon from the biotite monzogranite, fine-grained granite, and granite porphyry yields average ages of 149.38 ± 0.86 Ma, 149.0 ± 1.0 Ma, and 148.30 ± 1.4 Ma, respectively. The Zhuxi granites are enriched in Cs, Rb, and U and depleted in Ba, Sr, and Ti, with ASI [molar Al 2 O 3  / (CaO + Na 2 O + K 2 O)] values of 1.03–2.15. The fine-grained granite exhibits initial 87 Sr/ 86 Sr values of 0.716–0.717 and e Nd (t) values ranging from −9.61 to −9.21. The e Hf (t) values of the biotite monzogranite and fine-grained granite range from −8.83 to −6.30 and from −9.86 to −7.62, respectively. The Sr–Nd–Hf isotopic compositions of these rocks are similar to those of the fertile Neoproterozoic metasedimentary rocks in the Jiangnan W belt. The Zhuxi granites are S-type granites based on their mineral assemblages and geochemical characteristics. The Hf isotopic compositions, Sr–Nd isotopic characteristics, and trace element modelling suggest that the studied granites formed from the dehydration melting of fertile Neoproterozoic metasedimentary rocks caused by the Late Jurassic underplating of OIB-like basaltic magma.
  • References (92)
  • Citations (3)
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References92
Newest
Published on Jan 1, 2018in Lithos 3.91
Qiangwei Su1
Estimated H-index: 1
(China University of Geosciences),
Jingwen Mao33
Estimated H-index: 33
(China University of Geosciences)
+ 2 AuthorsShengfa Xu1
Estimated H-index: 1
• The Xiaoyao deposit is a typical tungsten polymetallic skarn deposit in the newly world-class porphyry–skarn tungsten ore belt.
Published on Aug 1, 2017in Lithos 3.91
Jingwen Mao33
Estimated H-index: 33
,
Bikang Xiong2
Estimated H-index: 2
+ 5 AuthorsPan Dai1
Estimated H-index: 1
Abstract The Yangchuling W–Mo deposit, located in the Jiangnan porphyry–skarn (JNB) tungsten ore belt, is the first recognized typical porphyry W–Mo deposit in China in the 1980's. Stockworks and disseminated W–Mo mineralization occur in the roof pendant of a 0.3 km 2 monzogranitic porphyry stock that intruded into a granodiorite stock, hosted by Neoproterozoic phyllite and slate. LA-ICPMS zircon U–Pb analyses suggest that of the monzogranitic porphyry and granodiorite were formed at 143.8 ± 0.5...
Published on Jun 1, 2017in Ore Geology Reviews 3.39
Xiaofei Pan2
Estimated H-index: 2
,
Zengqian Hou26
Estimated H-index: 26
+ 6 AuthorsChuan Kang1
Estimated H-index: 1
Abstract The recently discovered Zhuxi W–Cu ore deposit is located within the Taqian–Fuchun Ore Belt in the southeastern edge of the Yangtze Block, South China. Its inferred tungsten resources, based on new exploration data, are more than 280 Mt by 2016. At least three paragenetic stages of skarn formation and ore deposition have been recognized: prograde skarn stage; retrograde stage; and hydrothermal sulfide stage. Secondly, greisenization, marmorization and hornfels formation are also observe...
Published on Apr 1, 2017in Journal of Asian Earth Sciences 2.76
Wen Winston Zhao3
Estimated H-index: 3
(HKU: University of Hong Kong),
Mei-Fu Zhou69
Estimated H-index: 69
(HKU: University of Hong Kong)
+ 2 AuthorsJian-Feng Gao27
Estimated H-index: 27
(CAS: Chinese Academy of Sciences)
Abstract South China hosts the most abundant and largest tungsten (W) deposits in the world, being a famous W metallogenic region. Located at the eastern part of the South China Block, which was formed by amalgamation of the Yangtze and Cathaysia Blocks during the Neoproterozoic, these W deposits were mainly formed during the Mesozoic. The W mineralization is dominanted by greisen, quartz-vein, skarn, and porphyry types, all of which are genetically related to the evolution of highly fractionate...
Published on Dec 1, 2016in Solid Earth Sciences
Yanbo Cheng13
Estimated H-index: 13
(JCU: James Cook University),
Jingwen Mao33
Estimated H-index: 33
(China University of Geosciences),
Peng Liu3
Estimated H-index: 3
(China University of Geosciences)
The Sn–W mineralization in SE Yunnan Province, China and NE Vietnam shares many similarities. Through comparing the geological and geochronological data, we suggest the Sn–W deposits and the associate igneous rocks in the region represent one regional magmatic-mineralization event. To explore the geodynamic setting of these mineralization and magmatic activities, a geochronological dataset in the regions has been presented, containing data of this study and previously published. The dataset show...
Published on Oct 1, 2016in Ore Geology Reviews 3.39
Panlao Zhao3
Estimated H-index: 3
,
Shunda Yuan2
Estimated H-index: 2
+ 3 AuthorsKejun Hou1
Estimated H-index: 1
Abstract Southern Hunan Province, South China, is located in the central part of the Qin–Hang metallogenic belt and is characterized by abundant Cu–Pb–Zn and W–Sn polymetallic ore deposits. The Cu–Pb–Zn deposits are associated with Jurassic granodiorite porphyries whereas the W–Sn deposits occur within Jurassic granite porphyries. Here we present geochronologic and geochemical data for the Tongshanling Cu–(Mo)–Pb–Zn deposit and the Weijia W deposit in the district of Tongshanling, southern Hunan...
Published on Apr 1, 2016in Science China-earth Sciences 2.26
CHENGuoHua1
Estimated H-index: 1
(NU: Nanjing University),
Shu Liangshu11
Estimated H-index: 11
(NU: Nanjing University)
+ 2 AuthorsOuyang YongPeng1
Estimated H-index: 1
江西朱溪白钨(铜)多金属矿是近年发现的一个特大型矿床,发育在富含钨铜元素的新元古代泥砂质岩石基底之上,产在燕山期花岗岩与石炭-二叠纪灰岩的接触带.与矿化有关的花岗岩主要是等粒状、中-粗粒状花岗岩和花岗斑岩.存在矽卡岩白钨(铜)矿和花岗岩白钨矿两种矿化类型,前者规模大,品位富,后者规模小,品位低.在塔前-赋春盆地,其NW边界呈逆断层、SE边界呈角度不整合与元古代基底接触,而石炭-二叠纪多个岩组中灰岩的钨铜元素含量都很高.矿区外围与矿区内花岗岩类的主量元素含量差别不大,其A/CNK值均>1.1,属富钾的强过铝质花岗岩.在微量元素上,矿区内花岗岩比外围花岗岩的 δ Eu值更小,更具显著的Eu负异常,富集Rb, U, Ta, Pb和Hf,亏损Ba, Ce, Sr, La和Ti,属于演化程度更高的高分异S型花岗岩.受流体作用的影响,矿区内岩体硫化物矿化明显, SO 3 平均含量0.2%.和外围岩体相比,矿区内花岗岩 δ Eu和稀土总量均偏低,暗示外围与矿区花岗岩具有一定演化继承关系.外围与矿区岩体中的锆石U-Pb年龄为152~148 Ma.通过花岗岩中原位锆石Lu-Hf同位素分析,计算得到的 e...
Published on Sep 1, 2015in Gondwana Research 6.48
Zhihao Mao4
Estimated H-index: 4
(China University of Geosciences),
Jiajun Liu18
Estimated H-index: 18
(China University of Geosciences)
+ 6 AuthorsXiaohong Luo3
Estimated H-index: 3
(NU: Northwestern University)
Abstract Porphyry and skarn deposits in the middle Yangtze Valley within the Northern Yangtze Craton have a combined tungsten resource of ~ 3 million tonnes (Mt) and represent one of the most important tungsten regions in the world. The Dahutang porphyry tungsten deposit, with reserves of > 1 Mt, is one of the largest deposits. Uranium–Pb analyses for the ore-related granitoids yield ages of 147.4 ± 0.58 Ma–148.3 ± 1.9 Ma for porphyritic biotite granite, 144.7 ± 0.47 Ma–146.1 ± 0.64 Ma for fine-...
Published on Aug 1, 2015in Lithos 3.91
Catherine Annen24
Estimated H-index: 24
,
Jonathan D. Blundy27
Estimated H-index: 27
+ 1 AuthorsR. Stephen J. Spaks38
Estimated H-index: 38
(UoB: University of Bristol)
Abstract Field, geochronological and geophysical studies show that many igneous bodies are emplaced incrementally, growing by accretion of successive magma sheets. The existence of melt reservoirs with a size that exceeds one single increment strongly depends on the sheet emplacement rate, whereas the total volumes of magma that accumulate depend on the volumetric magma flux. Integration of geochronological and field data with numerical simulations suggeststhat those rates can vary dramatically ...
Published on Mar 1, 2015in Mineralium Deposita 3.40
Rolf L. Romer43
Estimated H-index: 43
,
Uwe Kroner10
Estimated H-index: 10
(Freiberg University of Mining and Technology)
The formation of major granite-hosted Sn and/or W deposits and lithium–cesium–tantalum (LCT) type pegmatites in the Acadian, Variscan, and Alleghanian orogenic belts of Europe and Atlantic Northern America involves weathering-related Sn and W enrichment in the sedimentary debris of the Cadomian magmatic arc and melting of these sedimentary source rocks during later tectonic events, followed by magmatic Sn and W enrichment. We suggest that within this, more than 3,000-km long late Paleozoic belt,...
Cited By3
Newest
Published on Jun 1, 2019in Ore Geology Reviews 3.39
Lulu Yuan , Guoxiang Chi20
Estimated H-index: 20
+ 6 AuthorsMingyue Hu
Abstract The Zhuxi W deposit in Jiangxi, South China, with a resource of 2.86 Mt W and an average grade of 0.54% WO 3 , is the largest W deposit in the world. The deposit occurs at the contact between a late Mesozoic granitic intrusion and Carboniferous – Permian carbonate rocks and Neoproterozoic metamorphic rocks. The ores are divided into three types: skarn ore (dominant), sulfide ore and greisen ore. Based on occurrences and petrographic relationships, scheelite (the dominant ore mineral) is...
Published on Apr 1, 2019in Mineralium Deposita 3.40
Shiwei Song1
Estimated H-index: 1
(PKU: Peking University),
Jingwen Mao33
Estimated H-index: 33
(PKU: Peking University)
+ 5 AuthorsYongpeng Ouyang2
Estimated H-index: 2
The Zhuxi W (Cu) skarn deposit is the largest W deposit in the Jiangnan porphyry–skarn tungsten belt in South China, and is also among the largest deposit of this type in the world. Titanite is a common mineral in the Zhuxi deposit, and occurs in three textural settings: titanite I associated with retrograde-altered exoskarn with weak mineralization; titanite II in retrograde-altered endoskarn with disseminated Cu ore; and titanite III from altered granite with disseminated W ore. Here, we prese...
Published on Apr 1, 2019in Ore Geology Reviews 3.39
Keke Sun (China University of Geosciences), Bin Chen26
Estimated H-index: 26
(SU: Southern University and A&M College),
Jun Deng31
Estimated H-index: 31
(China University of Geosciences)
Abstract Scheelite is the main ore mineral in skarn-type tungsten deposits, which can be used to track the ore-forming processes and sources. The Zhuxi W-Cu deposit (3.44 Mt WO 3 at 0.54% and 0.10 Mt Cu at 0.57%), located in the northern part of the Jiangnan orogen, is one of the largest tungsten deposits in the world. Skarn and orebodies occur mainly within the contact zone between the Mesozoic highly fractionated intrusions and Carboniferous carbonate sediments (Huanglong and Chuanshan formati...
Published on Jul 1, 2018in Lithos 3.91
Shiwei Song1
Estimated H-index: 1
(PKU: Peking University),
Jingwen Mao33
Estimated H-index: 33
(PKU: Peking University)
+ 4 AuthorsYongpeng Ouyang2
Estimated H-index: 2
Abstract A quartz-free scheelite-bearing fine- to medium-grained anorthosite occurs as a dike in the world-class Zhuxi scheelite skarn deposit of South China. The anorthosite mainly comprises An-rich plagioclase (An avg = 91, ~90 vol%) + scheelite (~3 vol%) + apatite (~2.5 vol%) + ilmenite (~1.5 vol%) + titanite (~1 vol%), as well as minor (~2 vol%) fluorite, prehnite, chalcopyrite, pyrrhotite, pyrite, sphalerite, rutile, and uraninite. This paper reports the first occurrence of scheelite-bearin...