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Rare-Metal Mineralization of Sn Occurrences in the Area of Li–F Granites, Verkhneurmiysky Ore Cluster, Amur Region
Russian Journal of Pacific Geology ( IF 0.8 ) Pub Date : 2019-05-24 , DOI: 10.1134/s1819714019020027
V. I. Alekseev , Yu. B. Marin , V. V. Gavrilenko

The by-products of the Far East Sn deposits related to Li–F granites include trace elements. The petrography and mineral composition of the Sn-bearing metasomatites of the Verkhneurmiysky ore cluster (VUOC) of the Amur region (feldspatites, greisens, zwitters, turmalinites, and chloritites) and the multistage complex rare-metal (RM) mineralization of the Sn occurrences in area of Li–F granites are studied. The minerals of strategic metals (Nb, Ta, W, Y, REE (from La to Lu), Be, Li, Rb, Zr, Hf, In, Sc, Se, Cd, and Te) are found. The RMs occur as minerals (fergusonite, plumbopyrochlore, allanite, monazite, roquesite, sakuraiite, etc.) and isomorphic substitution in the ore (wolframite; cassiterrite; Cu, Sn, Fe, Mo, Zn, and Pb sulfides; native bismuth; etc.) and rock-forming (fluorite, siderophyllite, muscovite, and epidote) minerals. Some RMs (Y, REEs, Nb, In, and Sc) most frequently occur in Sn-bearing metasomatites. The RM minerals formed during the VUOC evolution (from the premineral feldspatite to the postmineral chloritite stage) with decreasing intensity of RM mineral formation and compositional evolution from lithophile to chalcophile RMs: (LREE, Zr, Hf) → (W, Nb, Ta, Y, HREEs, Sc) → (Sn, In, Cd, Se, Te). The formation of the VUOC RM mineralization was caused by magmatic, metasomatic, and crystal chemical factors. The possible complex exploration of the Far East Sn deposits is shown for areas of Li–F granites.

中文翻译:

阿穆尔州Verkhneurmiysky矿石团簇Li–F花岗岩地区锡矿的稀有金属矿化

与Li-F花岗岩有关的远东锡矿床的副产品包括微量元素。阿穆尔州Verkhneurmiysky矿团(VUOC)含锡的变质岩的岩石学和矿物组成(长石,绿泥岩,两性离子,绿沸石和绿泥石)以及Sn发生的多阶段复杂稀有金属(RM)矿化研究了Li–F花岗岩地区。发现了战略金属(Nb,Ta,W,Y,REE(从La到Lu),Be,Li,Rb,Zr,Hf,In,Sc,Se,Cd和Te)的矿物。RMs以矿物(锰铁矿,铅烧绿石,尿囊石,独居石,水铁矿,樱石等)和矿石中的同晶替代形式出现(硅铁矿,黄铜矿,铜,锡,铁,钼,锌和铅的硫化物;天然铋等)。 )和成岩性(萤石,铁闪石,白云母和附子)矿物。一些RM(是,REE,Nb,In和Sc)最常见于含Sn的变质岩中。VUOC演化过程中形成的RM矿物(从矿物长石到矿物绿泥石阶段)随着RM矿物形成强度的降低和从石铁矿到嗜硫RM的成分演变:(LREE,Zr,Hf)→(W,Nb,Ta, Y,HREE,Sc)→(Sn,In,Cd,Se,Te)。VUOC RM矿化的形成是由岩浆,变质和晶体化学因素引起的。显示了Li-F花岗岩地区可能进行的远东锡矿床的复杂勘探。VUOC演化过程中形成的RM矿物(从矿物长石到矿物绿泥石阶段)随着RM矿物形成强度的降低和从石铁矿到嗜硫RM的成分演变:(LREE,Zr,Hf)→(W,Nb,Ta, Y,HREE,Sc)→(Sn,In,Cd,Se,Te)。VUOC RM矿化的形成是由岩浆,变质和晶体化学因素引起的。显示了Li-F花岗岩地区可能进行的远东锡矿床的复杂勘探。VUOC演化过程中形成的RM矿物(从矿物长石到矿物绿泥石阶段)随着RM矿物形成强度的降低和从石铁矿到嗜硫RM的成分演变:(LREE,Zr,Hf)→(W,Nb,Ta, Y,HREE,Sc)→(Sn,In,Cd,Se,Te)。VUOC RM矿化的形成是由岩浆,变质和晶体化学因素引起的。显示了Li-F花岗岩地区可能进行的远东锡矿床的复杂勘探。
更新日期:2019-05-24
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