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Mineralogy and titanite geochronology of the Caojiaba W deposit, Xiangzhong metallogenic province, southern China: implications for a distal reduced skarn W formation

Published on Mar 1, 2019in Mineralium Deposita 3.37
· DOI :10.1007/s00126-018-0816-2
Guiqing Xie3
Estimated H-index: 3
,
Jingwen Mao33
Estimated H-index: 33
+ 2 AuthorsZhiyuan Zhang3
Estimated H-index: 3
Abstract
The Caojiaba tungsten deposit (19.03 Mt@ 0.37 wt% WO3) is hosted by skarn along the contact between clastic and carbonate rocks in the Xiangzhong Metallogenic Province of southern China. The deposit is characterized by an early prograde skarn containing low andraditic garnet (Ad0.7–21.9) and hedenbergitic pyroxene (Hd52.9–77.3) overprinted by a retrograde biotite–chlorite assemblage and then by quartz–scheelite veins, similar to well-studied reduced tungsten skarns worldwide. Scheelite has low MoO3 (0.01–0.16 wt%), and ore commonly contains up to 1.5 ppm Au and up to 0.33 wt% Sb. Sensitive high-resolution ion microprobe (SHRIMP) U–Pb analyses of hydrothermal titanite coexisting with scheelite in three skarn ore samples provide ages between 206 ± 5 Ma and 196 ± 3 Ma (2σ). Our new ages demonstrate that the tungsten mineralization took place at Caojiaba between 206 and 196 Ma, overlapping the 228–201 Ma emplacement age of granitic rocks in the Xiangzhong Metallogenic Province. Mineralogical and geochronological evidence collectively indicates that Caojiaba is a distal reduced W skarn deposit. The 226–196 Ma granite-related W mineralization recognized throughout the province has a possible link with the widespread Sb–Au mineralization in the region.
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  • Citations (7)
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References35
Newest
Published on Jan 30, 2019in Minerals 1.83
Zhiyuan Zhang3
Estimated H-index: 3
,
Guiqing Xie + 3 AuthorsWei Li4
Estimated H-index: 4
Longshan is an important Sb-Au ore deposit (3.7 Mt @4.5 wt. % Sb and 4.6 g/t Au) in the Xiangzhong metallogenic province (XZMP), South China. In the present work, trace element composition, Sm-Nd isotope dating, and Sr isotope of scheelite from the Longshan Sb-Au deposit are used to constrain the genesis of the deposit. Based on mineral assemblages and geological characteristics, two types of scheelites can be distinguished (Sch1 and Sch2). Sch1 is granular and cemented by stibnite, while Sch2 i...
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Published on Jan 1, 2019in Mineralium Deposita 3.37
Guiqing Xie3
Estimated H-index: 3
,
Jingwen Mao33
Estimated H-index: 33
+ 2 AuthorsZhiyuan Zhang3
Estimated H-index: 3
The Yangjiashan scheelite-bearing deposit (38,663 metric tons of WO3 with an average ore grade of 0.70% WO3) is hosted in quartz veins in a biotite monzogranite intrusion and surrounding slate in the Xiangzhong Metallogenic Province of southern China. The monzogranite has a zircon SHRIMP U–Pb age of 406.6 ± 2.8 Ma (2σ, n = 20, MSWD = 1.4). Cassiterite coexisting with scheelite yields a weighted mean 206Pb/238U age of 409.8 ± 5.9 Ma (2σ, n = 30, MSWD = 0.20), and molybdenite intergrown with schee...
7 Citations Source Cite
Published on Jan 1, 2018in Ore Geology Reviews 3.99
Rolf L. Romer43
Estimated H-index: 43
,
Uwe Kroner10
Estimated H-index: 10
(Freiberg University of Mining and Technology)
Abstract The distribution of Au mineralization in the Appalachians and Variscides is irregular. Major segments of the belt do not show significant Au mineralization. Segments with major Au deposits, however, show a complex history of repeated endogenic and exogenic metal redistribution. Major sources for Au occurrences in the Appalachians and Variscides are Cambrian to Ordovician sedimentary rocks and Cambrian to Ordovician magmatic arcs. (i) Gondwana-derived Au forms paleo-placer deposits in Ca...
9 Citations Source Cite
Published on Sep 1, 2017in Mineralogy and Petrology 1.66
Hao Hu5
Estimated H-index: 5
(China University of Geosciences),
Jianwei Li25
Estimated H-index: 25
(China University of Geosciences),
Christopher R.M. McFarlane12
Estimated H-index: 12
(UNB: University of New Brunswick)
Uranium–lead isotopes and trace elements of titanite from the Chengchao iron skarn deposit (Daye district, Eastern China), located along the contact zones between Triassic marine carbonates and an early Cretaceous intrusive complex consisting of granite and quartz diorite, were analyzed using laser ablation inductively coupled plasma mass spectrometry to provide temporal constraints on iron mineralization and to evaluate its potential as a reference material for titanite U–Pb geochronology. Tita...
3 Citations Source Cite
Published on Jul 1, 2017in Lithos 3.86
Hao Hu5
Estimated H-index: 5
(China University of Geosciences),
Jianwei Li25
Estimated H-index: 25
(China University of Geosciences)
+ 2 AuthorsTravis McCarron2
Estimated H-index: 2
(UNB: University of New Brunswick)
Abstract The Mangling granitoid pluton, located along the southern margin of the North China Craton, consists mainly of monzogranite with minor amounts of diorite. The monzogranite contains abundant mafic microgranular enclaves (MMEs) and is intruded by numerous mafic dikes, providing an opportunity to study magma mixing and its role in the formation of the granitioid pluton. In this paper, we present in situ analysis of U–Pb isotopes and trace element compositions of titanite from the MMEs and ...
4 Citations Source Cite
Published on Apr 1, 2017in Mineralium Deposita 3.37
Ben J. Cave2
Estimated H-index: 2
(UTAS: University of Tasmania),
Iain K. Pitcairn11
Estimated H-index: 11
(Stockholm University)
+ 3 AuthorsSc Johnson3
Estimated H-index: 3
(UTAS: University of Tasmania)
The orogenic gold deposits of the Otago Schist, New Zealand, are enriched in a variety of trace elements including Au, As, Ag, Hg, W and Sb. We combine laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) traverses and images to show that detrital rutile is the most important host mineral for W in the subgreenschist facies rocks. Furthermore, the prograde metamorphic recrystallisation of detrital rutile to titanite releases significant amounts of W (potentially 0.41 g/tonne of...
12 Citations Source Cite
Published on Apr 1, 2017in Journal of Asian Earth Sciences 2.87
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...
48 Citations Source Cite
Published on Apr 1, 2017in Journal of Asian Earth Sciences 2.87
Ruizhong Hu36
Estimated H-index: 36
(CAS: Chinese Academy of Sciences),
Shanling Fu2
Estimated H-index: 2
(CAS: Chinese Academy of Sciences)
+ 6 AuthorsJiafei Xiao1
Estimated H-index: 1
(CAS: Chinese Academy of Sciences)
Abstract The South China Craton was formed by amalgamation of the Yangtze and Cathaysia Blocks during the Neoproterozoic. During the Mesozoic, voluminous granitic plutons and associated W-Sn polymetallic deposits were formed in the Cathaysia Block. The giant South China low-temperature metallogenic domain (LTMD) includes an area of ∼500,000 km 2 in the Yangtze Block and is composed of the Chuan-Dian-Qian Pb-Zn, Youjiang Au-As-Sb-Hg and Xiangzhong Sb-Au metallogenic provinces. The Chuan-Dian-Qian...
38 Citations Source Cite
Published on Sep 1, 2016in Ore Geology Reviews 3.99
Yu Fu6
Estimated H-index: 6
(SYSU: Sun Yat-sen University),
Xiaoming Sun10
Estimated H-index: 10
+ 2 AuthorsTianjian Yang2
Estimated H-index: 2
(SYSU: Sun Yat-sen University)
Abstract The Beiya gold–polymetallic deposit, located in the middle of the Jinshajiang–Ailaoshan alkaline porphyry metallogenic belt, is one of the largest gold deposits in China. The mineralization mainly occurs in skarn along the intrusive contacts between the alkaline porphyries and Middle Triassic limestone. In this paper, we present U–Pb age as well as major and trace element geochemistry of titanite from the Beiya deposit, and distinguish the titanite into a magmatic- and a hydrothermal su...
23 Citations Source Cite
Published on Sep 1, 2016in Canadian Mineralogist 0.94
Rémy S. Poulin2
Estimated H-index: 2
(Laurentian University),
Andrew M. McDonald15
Estimated H-index: 15
(Laurentian University)
+ 1 AuthorsM. Beth McClenaghan8
Estimated H-index: 8
(Geological Survey of Canada)
Abstract The relationship between cathodoluminescence (CL) response and chemical composition of scheelite from a variety of ore-deposit settings ( e.g ., orogenic Au, skarn, porphyry-related, greisens, VMS) was investigated using SEM-EDS, CL imaging, and LA-ICP-MS techniques. Our detailed study concentrates on five samples of scheelite from a range of ore-deposit settings, including orogenic Au, skarn, VMS, and greisen deposits, but draws on a yet unpublished data base of more than 39 deposits w...
7 Citations Source Cite
Cited By7
Newest
Published on Apr 1, 2019in Mineralium Deposita 3.37
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...
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Published on Mar 1, 2019in American Mineralogist 2.65
Wei Li4
Estimated H-index: 4
(China University of Geosciences),
Nigel J. Cook32
Estimated H-index: 32
(University of Adelaide)
+ 3 AuthorsSe Gilbert15
Estimated H-index: 15
(University of Adelaide)
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Published on Feb 1, 2019in Ore Geology Reviews 3.99
Wen-Feng Wei3
Estimated H-index: 3
(CAS: Chinese Academy of Sciences),
Ruizhong Hu36
Estimated H-index: 36
(CAS: Chinese Academy of Sciences)
+ 4 AuthorsJie-Hua Yang6
Estimated H-index: 6
(CAS: Chinese Academy of Sciences)
Abstract The Xihuashan tungsten ore deposit in the central Nanling region, South China is a vein-type hydrothermal deposit associated with the Late Jurassic granitoids that were previously thought to be the products of crustal anatexis alone. In this study, we use helium (He) and argon (Ar) isotopes of fluid inclusions entrapped in pyrite and arsenopyrite to determine the origin of the ore-forming fluids. The 3 He/ 4 He ratios of the crushed fluid inclusions vary from 0.15 to 1.16 Ra, with a mea...
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Published on Jan 30, 2019in Minerals 1.83
Zhiyuan Zhang3
Estimated H-index: 3
,
Guiqing Xie + 3 AuthorsWei Li4
Estimated H-index: 4
Longshan is an important Sb-Au ore deposit (3.7 Mt @4.5 wt. % Sb and 4.6 g/t Au) in the Xiangzhong metallogenic province (XZMP), South China. In the present work, trace element composition, Sm-Nd isotope dating, and Sr isotope of scheelite from the Longshan Sb-Au deposit are used to constrain the genesis of the deposit. Based on mineral assemblages and geological characteristics, two types of scheelites can be distinguished (Sch1 and Sch2). Sch1 is granular and cemented by stibnite, while Sch2 i...
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Published on Nov 1, 2018in Ore Geology Reviews 3.99
Xilian Chen2
Estimated H-index: 2
(CAS: Chinese Academy of Sciences),
Huaying Liang10
Estimated H-index: 10
(CAS: Chinese Academy of Sciences)
+ 4 AuthorsPaul Sotiriou (U of W: University of Windsor)
Abstract Numerous W-Sn deposits are developed in the South China Block with the majority related to the Yanshanian (Jurassic to Cretaceous) granites; a smaller number of deposits have been found associated with Kwangsian (middle Paleozoic) granites, the largest of which is the Niutangjie skarn W deposit. The Niutangjie deposit is spatially associated with two suites of granites: the unmineralized Yuechengling biotite and two-mica granites have zircon U-Pb ages of 427.1 ± 2.9 Ma and 427.5 ± 3.5 M...
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Published on Oct 1, 2018in Ore Geology Reviews 3.99
Wei Li4
Estimated H-index: 4
(China University of Geosciences),
Guiqing Xie5
Estimated H-index: 5
+ 3 AuthorsSong Lu1
Estimated H-index: 1
(University of Melbourne)
Abstract The Gutaishan deposit is a slate-hosted Au–Sb deposit in the Xiangzhong metallogenic province, South China. The deposit has proven reserves of ca. 9 tonnes (t) of gold with an average grade of 13 g/t and 2,500 t of Sb with an average grade of 10%. In this study, muscovite 40 Ar/ 39 Ar and in situ sulfur isotope analyses of pyrite and arsenopyrite were performed to determine the mineralization age and the plausible source of S and Au. The 40 Ar/ 39 Ar dating result of muscovite limits th...
2 Citations Source Cite
Published on Sep 29, 2018in Minerals 1.83
Wen-Feng Wei2
Estimated H-index: 2
,
Chun-Kit Lai11
Estimated H-index: 11
+ 3 AuthorsLei Liu1
Estimated H-index: 1
The newly discovered Shimensi deposit is a super-large tungsten-copper (W–Cu) deposit with a metal reserve of 742.55 thousand tonnes (kt) W and 403.6 kt Cu. The orebodies are hosted in Mesozoic granites, which intruded the poorly documented Shimensi granodiorite belonging to the Jiuling batholith, the largest intrusion (outcrop > 2500 km2) in South China. Our new SHRIMP (Sensitive High Resolution Ion MicroProbe) zircon dating revealed that the granodiorite at Shimensi (ca. 830–827 Ma) was formed...
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