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The genesis and resource potential of gold deposits in the Liaodong Peninsula

Science China Earth Sciences 2024年第3期67卷 657-672页

作者： Rixiang ZHU Jin-Hui YANG gongwen wang Qingdong ZENG Guoqiang XUE Tao XU Xinghui LI Peng ZHANG Da LEI Guang ZHU State Key Laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China Shenyang Center China Geological SurveyShenyang 110034China School of Resources and Environmental Engineering Hefei University of TechnologyHefei 230009China

Plenty of gold deposits related to Late Mesozoic craton destruction are widely distributed in eastern North China Craton. However, significant differences in research degrees, ore-forming characteristics, and proven reserves exist among different regions in the North China Craton. The Liaodong Peninsula has similar regional geological characteristics to those of the Jiaodong Peninsula, with both experiencing craton destruction during Late Mesozoic, but the two areas have substantial differences in terms of gold mineralization and the proven gold resources. Based on regional geology, Mesozoic magmatictectonic evolution and ore geology, combined with integrated geophysical exploration and big data AI resource prediction, in this paper, we propose that the ore-forming materials of Late Mesozoic gold deposits in Liaodong were mainly originated from mantle-derived melts and/or fluids induced by craton destruction. The gold deposits were primarily controlled by NE-NNEtrending faults, mainly classified as fracture-controlled altered rock-type and sulfide-bearing quartz vein-type. Moreover, our study predicts that the Yalu River fault zone and its related secondary faults, as well as the periphery and deeper parts of known goldfields, are the important regions for future gold resource exploration. The Yalu River metallogenic belt has an enormous potential for gold resources, and the Liaodong Peninsula has a potential to add thousands of tons of gold resources.

关键词： Liaodong Peninsula Gold deposit Integrated geophysical exploration Prospecting potential Direction for prospecting breakthroughs

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河南围山城金银矿集区三维地质建模与成矿预测

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地学前缘 2024年第3期31卷 245-259页

作者：谷浩杨泽强高猛唐相伟王东晓刘奎松杨树人郭跃闪王云王功文河南省第三地质矿产调查院有限公司河南郑州450000 河南省自然资源科技创新中心(信息感知技术应用研究) 河南郑州450000 中国地质大学(北京)地球科学与资源学院北京100083 中国地质大学(北京)自然资源部战略性金属矿产找矿理论与技术重点实验室北京100083 北京市国土资源信息研究开发重点实验室北京100083

三维建模与成矿预测已成为当前国内外十分流行且较成熟的技术方法。通过研究银洞坡金矿和破山银矿成矿地质特征,对围山城矿集区开展三维可视化模型构建及深部成矿预测。利用82条地质剖面建立了地质体(地层、岩体、矿体)、构造模型,利用1... 详细信息

三维建模与成矿预测已成为当前国内外十分流行且较成熟的技术方法。通过研究银洞坡金矿和破山银矿成矿地质特征,对围山城矿集区开展三维可视化模型构建及深部成矿预测。利用82条地质剖面建立了地质体(地层、岩体、矿体)、构造模型,利用1∶5万重磁数据和63条电测深数据建立了密度、磁化率、电阻率等地球物理模型,利用52条岩石剖面、614个钻孔、117个探槽、56个浅井及94个平硐数据建立了地球化学模型,实现了地、物、化数据的综合集成。以“三位一体”找矿预测理论为指导,建立了研究区岩浆热液型Au、Ag矿床三维定量预测模型,确定了Au、Ag矿床成矿有利信息变量;采用证据权法提取了预测变量的权重值和相关程度,选择合适的变量进行成矿预测,利用C-V分形确定阈值,圈定了6个找矿靶区,选择新庄预测靶区(A 1)进行钻孔验证,发现金矿体6条,充分证明了利用证据权法进行三维成矿预测具有可行性与科学性,圈定的靶区对矿山进行深边部隐伏矿体找矿具有重要的实践意义。

关键词：围山城矿集区多源数据三维地质建模证据权法成矿预测

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3D geological modeling for mineral resource assessment of the Tongshan Cu deposit,Heilongjiang Province,China

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Geoscience Frontiers 2012年第4期3卷 483-491页

作者： gongwen wang Lei Huang State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Beijing 100083 China

Three-dimensional geological modeling （3DGM） assists geologists to quantitatively study in three-dimensional （3D） space structures that define temporal and spatial relationships between geological objects. The 3D property model can also be used to infer or deduce causes of geological objects. 3DGM technology provides technical support for extraction of diverse geoscience information, 3D modeling, and quantitative calculation of mineral resources. Based on metallogenic concepts and an ore deposit model, 3DGM technology is applied to analyze geological characteristics of the Tongshan Cu deposit in order to define a metallogenic model and develop a virtual borehole technology; a BP neural network and a 3D interpolation technique were combined to integrate multiple geoscience information in a 3D environment. The results indicate：（1） on basis of the concept of magmatic-hydrothermal Cu polymetallic mineraliza- tion and a porphyry Cu deposit model, a spatial relational database of multiple geoscience information for mineralization in the study area （geology, geophysics, geochemistry, borehole, and cross-section data） was established, and 3D metallogenic geological objects including mineralization stratum, granodiorite, alteration rock, and magnetic anomaly were constructed; （2） on basis of the 3D ore deposit model, 23,800 effective surveys from 94 boreholes and 21 sections were applied to establish 3D orebody models with a kriging interpolation method; （3） combined 23,800 surveys involving 21 sections, using VC＋＋ and OpenGL platform, virtual borehole and virtual section with BP network, and an improved inverse distance interpolation （IDW） method were used to predict and delineate mineralization potential targets （Cu-grade of cell not less than 0.1%）; （4） comparison of 3D ore bodies, metallogenic geological objects of mineralization, and potential targets of mineralization models in the study area, delineated the 3D spatial and temporal relationship and causal processes am

关键词： Three-dimensional geological modeling (3DGM) Virtual borehole Virtual section BP network Interpolation Tongshan Cu deposit

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Resource prediction and assessment based on 3D/4D big data modeling and deep integration in key ore districts of North China

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Science China Earth Sciences 2021年第9期64卷 1590-1606页

作者： gongwen wang Zhiqiang ZHANG Ruixi LI Junjian LI Deming SHA Qingdong ZENG Zhenshan PANG Dapeng LI Leilei HUANG School of Earth Sciences and Resources China University of Geosciences(Beijing)Beijing100083China Tianjin Geological Survey Center of China Geological Survey Tianjin300170China Shenyang Geological Survey Center of China Geological Survey Shenyang110000China Key Laboratory of Mineral Resources Institute of Geology and GeophysicsChinese Academy of SciencesBeijing100029China Institutions of Earth Science Chinese Academy of SciencesBeijing100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing100049China Development Research Center of China Geological Survey Beijing100037China Shandong Academy of Geological Sciences Jinan250013China

The North China district has been subjected to significant research with regard to the ore-forming dynamics,processes,and quantitative forecasting of gold deposits;it accounts for the highest number of gold reserves and annual products in *** on the top-level design of geoscience theory and the method adopted by the National Key R&D Project(deep process and metallogenic mechanism of North China Craton(NCC)metallogenic system),this paper systematically collects and constructs the geoscience data(district,camp,and deposit scales)in four key gold districts of North China(Jiaojia-Sanshandao,Southern Zhaoping,Wulong,and Qingchengzi).The settings associated with the geological dynamics of gold deposits were quantitatively and synthetically analyzed,namely:NCC destruction,metallogenic events,genetic models,and exploration ***-dimensional(3D)and four-dimensional(4D)geological modeling was performed using the big data on the districts,while the district-scale 3D exploration criteria were integrated to construct a quantitative exploration *** them,FLAC3D modelling and the Geo Cube software(version 3.0)were used to implement the numerical simulation of the 3D geological models and the constraints of the fluid saturation parameters of the Jiaojia fault to reconstruct the 4D fault structure models of the Jiaojia fault(with a depth of 5000 m).Using Geo Cube3.0,multiple integration modules(general weights of evidence(Wof E),Boost Wof E,Fuzzy Wof E,Logistic Regression,Information Entropy,and Random Forest)and exploration criteria were integrated,while the C-V fractal classification of A,B and C targets in four districts was carried *** research results are summarized in the following four areas:(1)Four gold districts in the study area have more than three targets(the depth is 3000 m),and the class A,B and C targets exhibit a good spatial correlation with gold bodies that are controlled by mining engineering at depths greater than 1000 m.(2)The Boost Wof

关键词： Geoscience big data 3D/4D modeling Weights of evidence Random forest Target optimization and resources assessment Gold district in North China

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Late Mesozoic magmatism in the East Qinling Orogen, China and its tectonic implications

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Geoscience Frontiers 2019年第5期10卷 1803-1821页

作者： Fan Yang Fei Xue M. Santosh gongwen wang Sung Won Kim Zhiwei Shen Wenjuan Jia Xuhuang Zhang School of Earth Sciences and Resources China University of Geosciences Beijing29 Xueyuan RoadBeijing 100083China Graduate School of Life and Environmental Sciences University of TsukubaIbaraki305-8572Japan Department of Earth Sciences School of Physical SciencesThe University of AdelaideSA 5005Australia State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityNorthern Taibai Str. 229Xi’an 710069China Geological Research Division Korea Institute of Geoscience and Mineral ResourcesDaejeon305-350Republic of Korea Xinjiang Zijin Zinc Industry Co. LtdKezhou 845450China Luanchuan Bureau of Geology and Resources Luoyang 417500China

The Qinling Orogen in Central China records the history of a complex geological evolution and tectonic transition from compression to extension during the Late Mesozoic,with concomitant voluminous granitoids *** this study,we present results from petrological,geochemical,zircon U-Pb-Lu-Hf isotopic studies on the Lengshui felsic dykes from Luanchuan region in the East Qinling *** also compile published geochronological,geochemical,and Hf isotopic data from Luanchuan region and present zircon Hf isotopic contour *** newly obtained age data yield two group of ages at w145 Ma and 140 Ma for two granite porphyries from the Lengshui felsic dykes,with the w145 Ma interpreted as response to the peak of magmatism in the region,and the w140 Ma as the timing of formation of the felsic *** corresponding Hf isotopic data of the granite porphyries display negative εHf(t) values of e16.67 to e4.61,and Hf crustal model ages (TDM^C) of 2255e1490 Ma,indicating magma sourced from the melting of Paleo- to Mesoproterozoic crustal *** compiled age data display two major magmatic pulses at 160e130 Ma and 111e108 Ma with magmatic quiescence in between,and the zircon Hf isotopic data display εHf(t) values ranging from e41.9 to 2.1 and TDM^C values of 3387e1033 Ma,suggesting mixed crustal and mantle-derived components in the magma source,and correspond to multiple tectonic events during the Late *** Luanchuan granitoids are identified as I-type granites and most of these are highly fractionated granites,involving magma mixing and mingling and crystal *** tectonic setting in the region transformed from the Late Jurassic syn-collision setting to Early Cretaceous within-plate setting,with EeW extension in the Early *** extension is correlated with the NeS trending post-collisional extension between the North China Craton and Yangtze Craton as well as the EeW trending back-arc extension triggered by the westward Paleo-Pacific

关键词： Petrology Geochemistry Zircon U-Pb-Lu-Hf isotopes Zircon Hf isotopic mapping Luanchuan region East Qinling Orogen

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Timing of formation of the Hongdonggou Pb-Zn polymetallic ore deposit,Henan Province,China:Evidence from Rb-Sr isotopic dating of sphalerites

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Geoscience Frontiers 2017年第3期8卷 605-616页

作者： Fan Yang gongwen wang Huawen Cao Ruixi Li Li Tang Yufeng Huang Hao Zhang Fei Xue Wenjuan Jia Nana Guo School of Earth Sciences and Resources China University of Geosciences Beijing29 Xueyuan RoadBeijing 100083China Chengdu Center China Geological SurveyChengdu 610081China Luanchuan Bureau of Geology and Resources Luoyang 417500China

The Hongdonggou Pb-Zn polymetallic ore deposit, located in the southwestern part of the Luanchuan Mo-W-Pb-Zn-Ag polymetallic ore mineralization in Henan Province, China, is an important part of the East Qinling metallogenic belt. The orebodies in the deposit, which are vein, bedded and lenticular, are mainly hosted in the syenite porphyry, and formed within the carbonate and clastic rocks of the Yuku and Qiumugou formations partially. The genesis of the deposit has previously been argued to be of hydrothermal-vein type or of skarn-hydrothermal type. In this study, we report the results of Rb-Sr isotopic dating based on sphalerites from the main orebody of the Hongdonggou Pb-Zn polymetallic ore deposit, which yield an isochron age of 135.7 ± 3.2 Ma, constraining the timing of mineralization as early Cretaceous. The age is close to those reported for the Pb-Zn deposits in the Luanchuan ore belt. The （87Sr/86Sr）i values of the sphalerites （0.71127± 0.00010） are lower than that of terrigenous silicates （0.720） and higher than the mantle （0.707）, suggesting that the metallogenic components were mainly derived through crust-mantle mixing. Combining the results from this study with those from previous work, we propose that the Hongdonggou Pb-Zn polymetallic ore deposit is a hydrothermal-vein deposit associated with the early Cretaceous tectonothermal event, and the mineralization is controlled by NW- and near EW-trending faults in the Luanchuan Mo-W-Pb-Zn-Ag polymetallic ore concentration belt.

关键词： Sphalerite Rb-Sr geochronology Metallogeny Pb-Zn deposit Crust-mantle interaction Luanchuan ore belt

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3D Integrated Geological Modeling in Tongshan Copper Deposit,Heilongjiang Province,China

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地学前缘 2009年第S1期16卷 282-283页

作者： gongwen wang,Limei wang,Ge Cui,Chengyin Tan,Shanyan Jin School of Earth Sciences and Resources,China University of Geosciences(Beijing),Beijing 100083,China.

In this paper,3D-GIS reconstruction and interpolation approach,additional virtual borehole technology and BP network technology are used to explore the concealed ore *** virtual borehole has same function as reality b... 详细信息

关键词： 3D geological modeling virtual borehole BP network mineral exploration Tongshan copper deposit

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论权威继替中自由与法律信仰之关系问题

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学术研究 2006年第6期 65-71页

作者：汪公文中国计量学院法学院

人们无法准确理解自由的性质以及界定自由的程度,是不能划定自由和认识自由的根本性障碍。在“实有的自由”、“观念的自由”和“真正的自由”中,“观念的自由”是有缺失的。在法律中所谓“观念的自由”就是一种人为设定的自由,其介于... 详细信息

人们无法准确理解自由的性质以及界定自由的程度,是不能划定自由和认识自由的根本性障碍。在“实有的自由”、“观念的自由”和“真正的自由”中,“观念的自由”是有缺失的。在法律中所谓“观念的自由”就是一种人为设定的自由,其介于经验和超验之间。法律精神并不能保障人们自由,相反,它仅仅是人们追求自由的必然结果。在权威的继替中,只有当人们放弃那种世俗的信仰,从实证的经验不断靠近那种先验的存在时,人类社会才得以寻求到自由的真意。

关键词：观念自由社会转型权威继替法律精神信仰本质

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智能矿山大数据的地学信息挖掘与知识发现:以河南上房沟钼(铁)5G^(+)矿山为例

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地学前缘 2023年第4期30卷 317-334页

作者：王洛锋王功文许文辉徐森民何亚清王春毅杨涛周晓将黄蕾蕾左玲牟妮妮曹毅刘志飞常瑜琳洛阳栾川钼业集团股份有限公司河南洛阳471500 中国地质大学(北京)地球科学与资源学院北京100083 北京市国土资源信息开发研究重点实验室北京100083 自然资源部战略性金属矿产找矿理论与技术重点实验室北京100083

21世纪工业4.0促进了智能矿山诞生,智能矿山的地质、勘探、采矿、选矿、环境、测绘等多学科数据集构成了矿山大数据,从而促进了地球科学的数字化、信息化和智能化迅速发展。本文以河南上房沟钼(铁)矿床5G^(+)智能矿山为例,开展矿山大数... 详细信息

21世纪工业4.0促进了智能矿山诞生,智能矿山的地质、勘探、采矿、选矿、环境、测绘等多学科数据集构成了矿山大数据,从而促进了地球科学的数字化、信息化和智能化迅速发展。本文以河南上房沟钼(铁)矿床5G^(+)智能矿山为例,开展矿山大数据的地学信息挖掘,以凸显新工科多学科融合研究,取得了创新性成果与一系列新的地学知识发现。具体内容概括如下:(1)根据“斑岩-夕卡岩”矿床理论和找矿矿物学方法,利用钻孔数据集和露采场大比例尺填图及镜下鉴定分析,查明并构建了矿区主矿种与潜在矿种的时空三维模型,新发现了NE向构造赋矿地段、贯入式赋矿地段;(2)利用无人机遥感与地面高光谱短波红外和长波红外技术,识别并建立了矿区20多种主要蚀变矿物并构建了三维多参数矿物模型;(3)运用地球化学XRF测量和微区原位测量技术,建立了高光谱匹配的样品数据集,研发了矿区岩矿石有用和有害元素双矩阵制图软件,实现了传统地质统计学(高斯模拟、克里格插值)与机器学习(深度学习)关联的数学建模,复原并查明了2021年3—4月选矿回收率偏低的配矿矿石矿物组合及其缘由;(4)运用矿区选矿工艺矿物学的生产与实验采选矿的多期次多类型数据集(季-月-日的岩粉、泥粉、精矿、尾矿等,>1 800),研发岩粉与矿粉测试技术与分析方法,查明了上房沟钼矿的难选矿石类型及其有害矿物种类。研究结果表明,矿山多元多类型的数据集具有大数据“5V”(volume, variety, velocity, veracity, value)特征,准确管控矿山大数据的动态关联测量、分析与快速、高效评价有利于矿山智能决策和经济效益提高(回收率)。其中,高精度的多参数三维建模不仅能够深层次挖掘岩矿石的地质、构造、蚀变、矿化等信息模型,核实储量/资源量,还能满足第四代工业5G^(+)矿山的实时矿业(real-time-mining)发展的四维管控需求,例如三维空间可视化的地质矿产资源预测与评价及增储、虚拟仿真式的“年-季-月-日”动态配矿采矿、数字孪生的实时选矿等。本项研究成果为智能矿山的地质矿产深层次地学研究提供了借鉴和参考。

关键词：矿山大数据高光谱 XRF 地球化学原位分析地学信息挖掘知识发现上房沟Mo多金属矿床

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基于GIS技术的三江北段铜多金属成矿预测与评价

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地学前缘 2008年第4期15卷 27-32页

作者：王功文陈建平中国地质大学(北京)地球科学与资源学院

基于地质、地球物理、地球化学和遥感等多元地学信息的成矿预测与评价,能够优选和圈定成矿远景区,并为区域矿产资源量的估算提供依据,是国内外定量地学研究的重点和热点之一。文中选取西南三江北段为研究区,针对研究区铜多金属矿床具有... 详细信息

基于地质、地球物理、地球化学和遥感等多元地学信息的成矿预测与评价,能够优选和圈定成矿远景区,并为区域矿产资源量的估算提供依据,是国内外定量地学研究的重点和热点之一。文中选取西南三江北段为研究区,针对研究区铜多金属矿床具有海拔高、坡度大、近地表出露和矿区剥蚀环境发育等特征,在以往国内外学者普遍认同的控矿因素进行区域预测与评价的基础上,结合区域矿床的变化和保存条件研究内容,提出兼顾区域控矿、变化-改造、保存因素的成矿预测评价新认识。为了检验新认识,文中根据研究区成矿地质背景和已查明的24个铜多金属矿床,利用GIS技术提取铜多金属矿床赋存相关的29种多元信息,选取了证据权重法,开展基于控矿因素的20个因子和基于控矿、变化-改造和保存因素的29个因子两种区域铜多金属成矿预测与评价,编制成矿后验概率图,结合已知矿点和野外验证分析,认为基于控矿、变化-改造、保存因素的成矿预测结果优于单一的控矿因素预测结果:一方面剔除了冰川、水蚀或风化等近地表营力作用产生的非成矿异常区,另一方面提取了近地表赋存矿体的地层和岩体相关的成矿远景区。

关键词：控矿因素变化-改造因素保存因素 GIS 证据权重法成矿预测

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