Mineralogy and titanite geochronology of the Caojiaba W deposit, Xiangzhong metallogenic province, southern China: implications for a distal reduced skarn W formation
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Xie, Guiqing; Mao, Jingwen; Bagas, Leon; Fu, Bin; Zhang, Zhiyuan
Description
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...[Show more]
dc.contributor.author | Xie, Guiqing | |
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dc.contributor.author | Mao, Jingwen | |
dc.contributor.author | Bagas, Leon | |
dc.contributor.author | Fu, Bin | |
dc.contributor.author | Zhang, Zhiyuan | |
dc.date.accessioned | 2020-03-31T01:26:25Z | |
dc.identifier.issn | 0026-4598 | |
dc.identifier.uri | http://hdl.handle.net/1885/202535 | |
dc.description.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. | |
dc.description.sponsorship | This work was supported by the National Basic Research Program of China (2014CB440902) and the National Science Foundation of China (41573042, 41430314 and 41372090). | |
dc.format.extent | 14 pages | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_AU | |
dc.publisher | Springer Verlag | |
dc.rights | © Springer-Verlag GmbH Germany, part of Springer Nature 2018 | |
dc.source | Mineralium Deposita | |
dc.subject | Caojiaba, Distal reduced skarn, Tungsten deposit, Titanite dating, South China | |
dc.title | Mineralogy and titanite geochronology of the Caojiaba W deposit, Xiangzhong metallogenic province, southern China: implications for a distal reduced skarn W formation | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 54 | |
dcterms.dateAccepted | 2018-05-31 | |
dc.date.issued | 2019-03-07 | |
local.identifier.absfor | 040303 - Geochronology | |
local.identifier.absfor | 040304 - Igneous and Metamorphic Petrology | |
local.identifier.ariespublication | u3102795xPUB819 | |
local.publisher.url | https://www.springer.com/ | |
local.type.status | Published Version | |
local.contributor.affiliation | Xie, Guiqing, Chinese Academy of Geological Sciences (CAGS) | |
local.contributor.affiliation | Mao, Jingwen, Chinese Academy of Geological Sciences | |
local.contributor.affiliation | Bagas, Leon, Chinese Academy of Geological Science | |
local.contributor.affiliation | Fu, Bin, College of Science, The Australian National University | |
local.contributor.affiliation | Zhang, Zhiyuan, Chinese Academy of Geological Sciences | |
local.description.embargo | 2037-12-31 | |
local.identifier.essn | 1432-1866 | |
local.bibliographicCitation.issue | 3 | |
local.bibliographicCitation.startpage | 459 | |
local.bibliographicCitation.lastpage | 472 | |
local.identifier.doi | 10.1007/s00126-018-0816-2 | |
local.identifier.absseo | 970104 - Expanding Knowledge in the Earth Sciences | |
local.identifier.absseo | 840199 - Mineral Exploration not elsewhere classified | |
dc.date.updated | 2019-11-25T07:46:03Z | |
local.identifier.scopusID | 2-s2.0-85049562987 | |
Collections | ANU Research Publications |
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