Skarn-type tungsten mineralization associated with the Caledonian (Silurian) Niutangjie granite, northern Guangxi, China
Skarn-type tungsten mineralization associated with the Caledonian (Silurian) Niutangjie granite, northern Guangxi, China
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广西北部加里东（志留系）牛塘街花岗岩伴生的矽卡岩型钨矿化
DOI：
10.1007/s11430-014-4838-z
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发表时间：
2014-05
期刊：
影响因子：
--
通讯作者：
Zhang RongQing
中科院分区：
文献类型：
--
作者：
Yang Zhen;Wang RuCheng;Zhang WenLan;Chu ZhuYin;Chen Jun;Zhu JinChu;Zhang RongQing
牛塘街钨存款矿床位于桂北资源县与新干县交界处，是一个层状矽卡岩型白钨存款矿床。该存款与矿田内的细粒二云母花岗岩有关。锆石LA-ICP-MS U-Pb定年结果表明，该花岗岩的志留纪（加里东期）年龄为421.8± 2.4Ma，与邻近的月城岭岩基形成于同一时期。矽卡岩内的矿化与石英、石榴石和透辉石脉石有关，白钨矿存在于许多不同的矿物组合中，如石英-白钨矿和石英-硫化物-白钨矿;这些组合对应于矿化的氧化物和硫化物阶段。白钨矿的Sm-Nd同位素年龄为421±24 Ma。虽然该年龄的不确定性很高，但该年龄表明白钨矿化形成于加里东晚期，与牛塘街花岗岩的侵位时间相似。花岗岩中的锆石的Hf（t）值和Hf两阶段模式年龄分别为-6.5 ~-11.6和1.79 ~ 2.11 Ga。这些数据表明，形成花岗岩的岩浆来自中元古代地壳物质。白钨矿的Nd（t）值介于−13.06至−13.26之间，也表明其来源于古老的地壳物质。最近的研究发现南岭西段存在加里东期岩浆作用，表明该岩浆作用可能是同生钨矿化的来源。
The Niutangjie tungsten deposit is a bedded skarn-type scheelite deposit and is located at the junction between Ziyuan and Xingan counties in the north of Guangxi, China. The deposit is genetically related to a fine-grained two-mica granite within the orefield. Zircon LA-ICP-MS U-Pb dating of the granite yielded a Silurian (Caledonian) age of 421.8±2.4 Ma, which is contemporaneous with the adjacent Yuechengling batholith. Mineralization within the skarn is associated with a quartz, garnet, and diopside gangue, and scheelite is present in a number of different mineral assemblages, such as quartz-scheelite and quartz-sulfide-scheelite; these assemblages correspond to oxide and sulfide stages of mineralization. Sm-Nd isotope analysis of scheelite yielded an isochron age of 421±24 Ma. Although the uncertainty on this date is high, this age suggests that the scheelite mineralization formed during the Late Caledonian, at a similar time to the emplacement of the Niutangjie granite. Zircons within the granite have ɛHf(t) values and Hf two-stage model ages of −6.5 to −11.6, and 1.79 to 2.11 Ga, respectively. These data suggest that the magma that formed the granite was derived from Mesoproterozoic crustal materials. Scheelite ɛNd(t) values range from −13.06 to −13.26, also indicative of derivation from ancient crustal materials. Recent research has identified Caledonian magmatism in the western Nanling Range, indicating that this magmatism may be the source of contemporaneous tungsten mineralization.
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影响因子：
56.9
作者：
E. Scherer;C. Münker;K. Mezger
通讯作者：
E. Scherer;C. Münker;K. Mezger
DOI：
10.1007/978-3-642-41714-6_34526
发表时间：
1985
期刊：
--
影响因子：
--
作者：
S. Taylor
通讯作者：
S. Taylor
影响因子：
1.8
作者：
Xi‐sheng Xu;W. Griffin;Xi Ma;S. O’Reilly;Zhenyu He;Chengli Zhang
通讯作者：
Xi‐sheng Xu;W. Griffin;Xi Ma;S. O’Reilly;Zhenyu He;Chengli Zhang
DOI：
--
发表时间：
2006
期刊：
Geological Review
影响因子：
--
作者：
Zhang Dongliang
通讯作者：
Zhang Dongliang
DOI：
--
发表时间：
2002
期刊：
Geology and Mineral Resources of South China
影响因子：
--
作者：
Liangxu Jin
通讯作者：
Liangxu Jin