Indosinian ore-bearing magma source, alteration mineralogy and prospecting signification of the Fulin skarn copper deposit in the northern Great Xing' an Range, NE China
文献类型：期刊论文
| 作者 | Zhao Chao1,2; Song GuoXue2; Qin KeZhang1,2; Li GuangMing1; Li ZhenZhen1; Jin LuYing1,2; Meng ZhaoJun3; Zhang XiaNan1,2 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2017 |
| 卷号 | 33期号:2页码:455-+ |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Newly discovered Indosinian Fulin skarn copper deposit is located in the northern Great Xing'an Range and is at a distance of 90km from the east of Xinlin Town. Granite which is responsible for the skarn copper mineralization and granite porphyry which crosscut the granite are the two intrusion rocks in the Fulin deposit. The ore body mainly occurs within the contact zone between Late Permain granite and Paleoproterozoic Xing'anqiao Formation marble and Early Ordovician Huangbanjishan Formation calcareous siltstone. The mineralization is closely related to the skarn. The mineralization process can be divided into two periods:Skarn period and quartz-sulfide period. The two periods can be further divided into five stages:Early skarn stage, regressive alteration stage, oxide stage, early sulfide stage and late sulfide stage. The early sulfide stage is the major stage for Cu mineralization. Chalcopyrite and pyrite are main sulfides, and there are also few sphalerite, galenite and bornite. The alteration types in Fulin ore deposit contain garnet-diopside skarnization, actinolite-tremolite skarnization, epidote skarnization, chloritization, sericitization-clayzation, potassic and partly biotite hornfels. The electron microprobe analyses (EMPA) show that the garnet comprises mainly grossular-andradite series, and mainly belongs to andradite. The end member of pyroxene is dominated by diopside and hedenbergite, and mainly belongs to diopside. The amphibole is mainly tremolite, actinolite and few magnesiohastinsite and ferroedenite. The epidote group comprises mainly zoisite and epidote series. The biotite is mainly Mg-rich lepidomelane and siderophyllite. The chlorite is mainly pycnochlorite and euralite. The feldspar is mainly orthoclase and albite. The EMPA components of garnet from core to rim have an alternation changing between grossular and andradite, and the content of Fe3+ increasing, which suggests the oxygen fugacity of later ore-forming fluid is high. Combined with the Mg-Fe3+-Fe2+ diagram of biotite we think the Fulin skarn deposit is formed in a relatively high oxidation environment. Zircon LA-ICP-MS U-Pb analysis for granite and granite porphyry yield similar to 253Ma and similar to 244Ma respectively, which represents a new metallogenic stage in the Great Xing'an Range. Zircon in-situ Hf isotope analysis reveal the epsilon(Hf)(t) of granite and granite porphyry is -1.6 similar to 2.23 and -3.35 similar to 1.9 respectively, both of them show a very old two-stage model age. So, combined the geological setting we think the granitoid may derive from the old lower crust which was heated by the underlying asthenosphere during the slab break-off after the collision of Songliao massif and Xing'an massif and may contaminated some mantle materials. The appearance of granite porphyry and associated sulfide veins and alterations suggests the possibility of Indosinian porphyry-type mineralization in the Fulin ore deposit field. In addition, the comparison analysis on the components of garnet and pyroxene and the Mn/Fe ratio of pyroxene with the skarn deposits all over the world, we suggest that copper, molybdenum, iron, gold, lead and zinc mineralizations should be comprehensively considered for the further exploration in the Fulin ore district and adjacent areas. |
| WOS关键词 | U-PB GEOCHRONOLOGY ; MO DEPOSITS ; GEOLOGICAL SIGNIFICANCE ; HYDROTHERMAL SYSTEM ; INNER-MONGOLIA ; TRACE-ELEMENT ; FORMING FLUID ; PORPHYRY ; MINERALIZATION ; EVOLUTION |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000397326900010 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/53069]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 通讯作者 | Qin KeZhang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Min Resources, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.706 Geol Party Heilongjiang Geoexplorat Bur Nonfe, Qiqihar 161006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao Chao,Song GuoXue,Qin KeZhang,et al. Indosinian ore-bearing magma source, alteration mineralogy and prospecting signification of the Fulin skarn copper deposit in the northern Great Xing' an Range, NE China[J]. ACTA PETROLOGICA SINICA,2017,33(2):455-+. |
| APA | Zhao Chao.,Song GuoXue.,Qin KeZhang.,Li GuangMing.,Li ZhenZhen.,...&Zhang XiaNan.(2017).Indosinian ore-bearing magma source, alteration mineralogy and prospecting signification of the Fulin skarn copper deposit in the northern Great Xing' an Range, NE China.ACTA PETROLOGICA SINICA,33(2),455-+. |
| MLA | Zhao Chao,et al."Indosinian ore-bearing magma source, alteration mineralogy and prospecting signification of the Fulin skarn copper deposit in the northern Great Xing' an Range, NE China".ACTA PETROLOGICA SINICA 33.2(2017):455-+. |
入库方式： OAI收割
来源：地质与地球物理研究所
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