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Deep Structural Framework and Genetic Analysis of gold Concentration Areas in the Northwestern Jiaodong Peninsula, China： A New Understanding based on High-Resolution Reflective Seismic Survey

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Acta Geologica Sinica(English Edition) 2018年第5期92卷 1823-1840页

作者： YU Xuefeng SHAN Wei XIONG Yuxin GENG Ke SUN Yuqin CHI Naijie GUO Baokui LI Dapeng LI Hongkui SONG Yingxin YANG Deping Shandong key laboratory of Geological processes and Resource utilization in Metallic Minerals Jinan 250013 Shandong China key laboratory of gold mineralization processes and resources utilization minister of land and resources Shandong Institute of Geological Sciences

The gold concentration areas in the northwestern Jiaodong Peninsula constituted an important gold metallogenetic region in Eastern China during the Mesozoic. The deep geological bodies＇ texture characteristic is important for exploring the resources thoroughly and understanding the metallogenic process. The detailed textures were revealed using high-resolution seismic profiles through the three major ore-controlling structures-Sanshandao fault zone, Jiaojia fault zone and Zhaoping fault zone. This study aims to establish a deep structural framework of this area. Based on their formation mechanism, the fault structures developed in the area can be divided into regional and local fault structures. The structural styles are characterised by superimposing their compressional, strike-slip and extensional multi-stage activities. The crust is cut by vertical structures corresponding to a left-lateral strike-slip fault system on the surface. Nearby these structures are the arc-shape structures formed by multi-stage magma intrusions into the upper crust. Bounded by the Tancheng–Lujiang and Muping–Jimo fault zones, the current Jiaodong block, developed a series of NE-trending strike-slip fault systems, was probably formed by the assemblage of several obliquely aligned blocks. The intensive magmatism and hydrothermal activity between the blocks induced large-scale mineralisation. It provides a new angle of view for understanding the cratonic destruction and large ore-concentration formed during the Mesozoic.

关键词： ore concentration area deep exploration strike-slip faults Sanshandao fault zone cratonic destruction Shandong

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Study on the Metallogenetism of Sub-mantle Plume and Mantle Branches in the gold mineralization Concentration Area of Northwest Jiaodong Peninsula

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Acta Geologica Sinica(English Edition) 2014年第5期88卷 1409-1420页

作者： NIU Shuyin CHENG Guangsuo ZHANG Jianzhen SUN Aiqun MA Baojun ZHANG Fuxiang WANG Baode XU Meng WU Jichun ZHAO Rongxin WANG Shanfei key laboratory of gold mineralization processes and Resource utilization Subordinated to the Ministry of land and resources Shijiazhuang University of Economics Shandong gold Group Co. Ltd.

The northwest of Jiaodong peninsula is characterized by its greatest gold concentration area, enormous gold reserves and limited time interval （115±5Ma） of gold mineralization in China. Studies show that the east area of north China began its mantle plume evolution since the Yanshanian movement, and the Laiyang sub-mantle plume and its surrounding mantle branches such as those in Guojiadian, Aishan and Panshidian were formed in the mineralization concentration area of northwestern Jiaodong peninsula. With the development of mantle plume →sub-mantle plume → mantle branch→ favorable expending structures, the deep-derived hydrothermal fluid moved up to the favorable places, such as brittle-ductile or ductile-brittle shearing zones, the internal and external contact zones of intrusions, dense fracturing zones and the contact zones between dikes and countryrocks, and concentrated into deposits. Then the gold mineralization concentration zones that are centralized on mantle branches were formed. This study takes Guojiadian mantle branch as an example to discuss their metallogenetism and conclude the metallogenetic mode.

关键词： sub-mantle plume mantle branch ore-controlling structure metallogenetism,metallogenetic mode northwest Jiaodong peninsula

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A Textural and Mineralogical Study of the Shanzhuang Banded Iron Formation, Southeastern Margin of the North China Craton: Implications for the Overprint History of Hydrothermal Alteration and Supergenesis after mineralization

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Acta Geologica Sinica(English Edition) 2020年第6期94卷 2134-2151页

作者： ZHANG Yan YU Xuefeng PENG Qiming LI Dapeng LI Xiaowei SHEN Kun ZHANG Shangkun SHANWei School of Earth Science and resources China University of GeosciencesBeijing 100083China key laboratory of gold mineralization processes and resources utilization Ministry of Land and ResourcesJinan 250013China Shandong key laboratory of mineralization Geological processes and resources utilization in Metallic Minerals Jinan 250013China Shandong Geological Sciences Institute Jinan 250013China

The newly discovered Shanzhuang BIF is hosted in the Shancaoyu Formation of the Taishan Group within the Eastern Block,southeastern margin of the North China *** ores can be subdivided into three types in terms of mineral assemblages,corresponding to three types(Ⅰ,Ⅱ,Ⅲ).The element concentration of the type Ⅰ magnetite is similar to that of the type Ⅱ magnetite,while the type Ⅲ magnetite is similar to that of the *** general,magnetite and hemat ite grains from the ores show high concentrations of Mn(1317,1162 ppm),Co(787,1023 ppm),Al(2224,2435 ppm)and Ti(540,300 ppm),Whereas magnetite is depleted in Si(420 ppm)and hematite enriched in Si(1690 ppm).Detailed petrographic and mineral chemical analysis of magnetite,hematite,amphibole/hornblende and pyroxene,reveals that almost all the minerals occur as subhedral-anhedral grains with pits and fractures,and the BIF is recrystallized to metamorphic assemblages of high amphibolite *** is highly enriched in Fe,Mg and Ca,but depleted in K and Na,mostly belonging to *** addition,the ratios of Mg/(Mg+Fe^2+),Fe^3+/(Fe^3++Fe^2+),Si/(Si+Ti+Al)and Al/Si are 0.48-0.64,0.17-0.36,0.79-0.88 and 0.14-0.27,*** is suggested that hornblende is neither a typical magmatic origin nor a typical *** has the characteristics of high Ca and Fe,but low Ti and Al,with end-member components En,Wo and Fs in the ranges of 25.22-28.64 wt%,43.71-46.40 wt%and 24.51-27.62 wt%,respectively,belonging to clinopyroxene,and mostly diopside,might be formed during the prograde metamorphism in the absence of H2 *** carbonate such as dolomite-ankerite series is probably a precursor mineral of the BIF *** mineral chemical and structural characteristics indicate that the Shanzhuang iron deposit has been subjected to varying degrees of oxidized hydrothermal superimposed reformation,metamorphism,and supergenesis after mineralization,during which some elements have been migrated in some

关键词： mineral chemistry metamorphism hydrothermal superimposed reformation EPMA BIF western Shandong

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Preparation of Thermal Insulation Ceramics Using Felsic Tailings as Main Raw Material and Soda-ash Dregs as Flux

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Journal of Wuhan University of Technology(Materials Science) 2023年第1期38卷 31-41页

作者：王志明 YAO Geng WANG Qiang ZHU Xiangnan QU Meiyun ZHAO Wei LIU Qing SUN Shaokang XIA Chuanbo 吕宪俊 School of Chemical and Biological Engineering Shandong University of Science and TechnologyQingdao 266590China Shandong Institute of Geological Sciences Key Laboratory of Gold Mineralization Processes and Resource UtilizationMNRShandong Provincial Key Laboratory of Metallogenic Geological Process and Resource UtilizationJinan 250013China College of Chemistry Chemical Engineering and Materials ScienceZaozhuang UniversityZaozhuang 277160China Jigang International Engineering&Technology Co. Ltd.Jinan 250101China

Low-cost thermal insulation porous ceramics with uniform pore diameter and low bulk density were prepared with soda-ash dregs and felsic *** investigated the effect of temperature,foaming agent,fluxing agent,Al_(2)O_(3)and CaO content on the pore structure and crystal phase of porous *** effect of Ca^(2+)in soda-ash dregs on the preparation of quartz-feldspar based porous ceramics was *** results showed that the contribution of Ca^(2+)to the preparation of porous ceramics in this system was mainly to accelerate the Si-O bond fracture and reduce the sintering temperature at the initial stage of sintering,which destroyed the needle-like feldspar in the high temperature melt and reduced the melt viscosity,thus reduced the foaming resistance and promoted the porous products with uniform pore size *** Ca^(2+)content on the high side can participate in the formation of crystals in *** generated needle-like diopside and augite,which have small length-diameter ratio,will negligibly change in the viscosity of melt at high temperatures,and their inhibition effect on pores is not as good as that of feldspar with large length-diameter ratio,resulting in the merger and collapse of *** the increase of diopside and augite can improve the compressive strength of porous products to some *** ceramic products containing needle-like feldspar phase can be prepared by using two kinds of solid waste,which can improve the compressive strength of the products and reduce the raw material cost and energy consumption while comprehensively utilizing the double solid *** optimal product has a bulk density of 0.45 g/cm^(3),a compressive strength of 3.17 MPa,and a thermal conductivity of 0.11 W/(m·K).

关键词： felsic tailings Ca-riched Soda-ash dregs low-cost thermal insulation porous ceramics high content of solid waste transformation of needle-like crystal phase

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He–Ar Isotopic Tracing of Pyrite from Ore-forming Fluids of the Sanshandao Au Deposit, Jiaodong Area

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Acta Geologica Sinica(English Edition) 2019年第6期93卷 1797-1807页

作者： HAN Zhenyu YU Xiaowei LI Shoujun Tian Jingxiang WANG Zhongliang YU Xiaojing WANG Ligong College of Earth Science&Engineering Shandong University of Science and TechnologyQingdaoShandong 266590China Yantai Natural Museum YantaiShandong 264000China Shandong Institute of Geological Survey Ji’nan 250014China Shandong Institute of Geological Sciences Ji’nan 250014China key laboratory of gold mineralization Process and resources utilization Ministry of Land and Resources Ji’nan 250014China key laboratory of Metal mineralization Geological processes and resources utilization in Shandong Province Ji’nan 250014 China State key laboratory of Geological Process and Mineral resources China University of GeosciencesBeijing 100083 China The third Exploration Institute of Geology and Mineral resources of Shandong Province YantaiShandong 264000China

The Sanshandao Au deposit is located in the famous Sanshandao metallogenic belt,Jiaodong *** date,accumulative Au resources of 1000 t have been identified from the *** is a world-class gold deposit with Au mineralization hosted in Early Cretaceous Guojialing-type ***,studies on the genesis and ore-forming element sources of the Sanshandao Au deposit are *** and Ar isotopic analyses of fluid inclusions from pyrite(the carrier of Au)indicate that the fluid inclusions have 3 He/4 He=0.043–0.21 Ra with an average of 0.096 Ra and 40 Ar/36 Ar=488–664 with an average of *** values represent the initial He and Ar isotopic compositions of ore-forming fluids for trapped fluid *** comparison of H–O isotopic characteristics combined with deposit geology and wall rock alteration reveals that the ore-forming fluids of the Sanshandao Au deposit show mixed crust–mantle origin characteristics,and they mainly comprise crust-derived fluid mixed with minor mantle-derived fluid and meteoric water during the uprising *** ore-forming elements were generally sourced from pre-Cambrian meta-basement rocks formed by Mesozoic reactivation and mixed with minor shallow crustal and mantle components.

关键词： Sanshandao Au deposit He and Ar isotopes fluid inclusions crustal fluid mantle-derived fluid

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A Research of the Cretaceous-Paleogene Boundary in the Pingyi Basin, Shandong Province

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Open Journal of Geology 2019年第10期9卷 661-664页

作者： Jun Chen Shengxian Du Cheng Chen Fengchen Liu Zhengguo Ning Xiangsuo Song Shucai Liu Huinan Lu Yongqing Liu Hongwei Kuang Shandong Institute of Geological Sciences Jinan China key laboratory of gold mineralization processes and resources utilization Subordinated to the Ministry of land and resources Jinan China key laboratory of Metallogenic Geological Process and resources utilization in Shandong Province Jinan China Shandong Institute of Geological Survey Jinan China Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Nanjing China Insititute of Geology Chinese Academy of Geological Sciences Beijing China

The Bianqiao Formation (in the Pingyi Basin, Shandong Province, China) is a typical set of continuous lacustrine carbonate deposits during the Cretaceous-Paleogene period, which is considered as an ideal stratigraphic unit for KPB research. This study is based on the borehole PYZK01, which is located at Tongjiazhuang village in Bianqiao Town of Pingyi country. According to biostratigraphy research, the Bianqiao Formtion establishes one charophyte assemblage: Porocharaanluensis-Charayuntaishanensis var. acuta-Turbocharaspecialis, and one sporopollen assemblage: Deltoidosporaadriensis-Rugubivesiculites- Schizaeoisporites. This result indicates that the stratigraphic age during 0 - 12.25 m is the Paleogene, 37.8 m - 60 m is the Late Cretaceous, and 12.25 - 37.8 m is a transition stage from the Late Cretaceous to the Paleocene. By geochemical study, it was established carbon and oxygen isotopic strata in the drill. Through the magnetostratigraphy research, we find eight positive polarity zones and seven reversed polarity zones, build the magnetic polarity sequences of the borehole, and propose a contrast scheme with the international standard magnetic polarity time column. After comprehensive discussion, it is preliminarily believed that the Cretaceous-Paleogene boundary is located at the depth of 31.98 m in PYZK01, namely, in the first section of the Bianqiao Fm.

关键词： Cretaceous-Paleogene Boundary Biostratigraphy Isotopic Stratigraphy Magnetostratigraphy Pingyi Basin

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Whole-rock geochemistry and Sr–Nd–Pb isotope systematics of the Late Carboniferous volcanic rocks of the Awulale metallogenic belt in the western Tianshan Mountains(NW China):Petrogenesis and geodynamical implications

Whole-rock geochemistry and Sr–Nd–Pb isotope systematics o...

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中国科学院地质与地球物理研究所2015年度（第15届）...

作者： Songsheng Ge Mingguo Zhai Inna Safonova Dapeng Li Xiyan Zhu Pengfei Zuo Houxiang Shan State key laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of Sciences University of Chinese Academy of Sciences Institute of Geology and Mineralogy SB RAS Novosibirsk State University Shandong key laboratory of Geological processes and Resource utilization in Metallic Minerals Key Laboratory of Gold Mineralization Processes and Resources Utilization Subordinated to the Ministry of Land and ResourcesShandong Geological Sciences Institute State key laboratory of Geological Process and Mineral resources China University of Geosciences

The Awulale metallogenic belt(AMB)of the western Tianshan(NW China)includes Late Carboniferous(ca.320 Ma)ore-bearing volcanic rocks of the Dahalajunshan *** petrogenesis and tectonic setting of these volcanic rocks are important for the understanding of the tectonic evolution and metallogeny of the western *** paper presents new major and trace elements and Sr-Nd-Pb isotope data from the Dahalajunshan volcanic rocks,which are mainly calc-alkaline basaltic trachy-andesite and trachy-andesite with subordinate basalt,trachy-basalt and *** variations of major and trace elements in the mafic and intermediate volcanic rocks indicate the fractionation of pyroxene and magnetite or hornblende,magnetite,apatite and plagioclase,respectively,during their *** Dahalajunshan volcanic rocks have similar primitive mantle-normalized diagrams and chondrite-normalized rare-earth element(REE)patterns suggesting their similar mantle source(s).They are characterized by enrichment in large ion lithophile elements(LILEs)and light REEs(LREEs),depletion in heavy REEs(La/Yb≈2.80 to 9.59)and high field strength elements(HFSEs)andε(t)ranging from+1.2 to+6.0 atSr/Sr(t))=0.7047-0.7063 andPb/Pb=*** the geochemical and isotopic data indicate that the volcanic rocks were probably derived by low-degree melting of sub-arc lithospheric mantle modified by fluids in a continental arc *** obtained results,in conjunction with previous published data,allow us to suggest that the southward subduction of Junggar oceanic crust continued until the Late Carboniferous and was followed by a tectonic shift from continental arc to post-collisional extension environment.

关键词： Volcanic rocks Sr–Nd–Pb isotopes Magmatic source Geodynamic evolution Tianshan

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