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Dissolved rare earth elements estimation of ion-absorption rare earth ores using reflectance spectroscopy in south Jiangxi province,China

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Journal of Rare Earths 2021年第10期39卷 1300-1310,I0005页

作者： Jingjing Dai Denghong Wang zhenghui chen Institute of Mineral Resources Chinese Academy of Geological SciencesBeijing 100037China Ministry of Natural Resources.Key Laboratory of Metallogeny and Mineral Assessment Beijing 100037China

Ion-absorption rare earth ores are an important mineral resource in ***,the unauthorized mining has become a serious problem,resulting in severe water pollution and the wastage of rare earth elements(REEs).Being able to estimate the concentration of dissolved REEs in water bodies near mines is essential for tackling this environmental ***,quantitative analyses of the contents of dissolved REEs are performed using laboratory-based techniques,which can be time consuming and *** reflectance is a rapid and cost-effective means of characterizing the chemical compositions of light-absorbing *** this study,reflectance spectroscopy was performed on dissolved REEs,and the correlation between their reflectance characteristics and REE content was determined.A total of 50 aqueous media samples collected in south Jiangxi Province and 25 laboratory-produced aqueous media samples were tested,and their reflectance spectra and REE contents were measured using reflectance spectroscopy and inductively coupled plasma mass spectrometry,***,the reflectance,differential reflectance,and absorption depth were analysed based on the REE *** diagnostic absorption features related to REEs are recognised in the visible and near-infrared wavelength regions,along with several smaller *** indicates that the results of the absorption depth analysis are in accordance with the absorption spectra characteristics of the REEs,with the R2 value being higher than *** intensity of each of the six absorption bands exhibits a linear correlation to the total REE ***,linear regressio n models can be derived for estimating the total concentration of REEs in aqueous media ***’s more,the detection limit for REEs is determined to be about 30μg/***,it can be concluded that reflectance spectroscopy is a suitable technique for estimating the concentration of dissolved REEs.

关键词： Rare earth elements Ion-absorption rare earth ores Spectroscopy Concentration Correlation analysis

《南岭成矿带成矿规律图》研编创新点及其找矿意义

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地质论评 2024年第3期70卷 861-873页

作者：王岩王登红秦锦华黎华陈郑辉郭娜欣黄凡中国地质科学院矿产资源研究所自然资源部成矿作用与资源评价重点实验室北京100037 广西壮族自治区地质调查院南宁530023

由中国地质科学院矿产资源所编制出版的《南岭成矿带成矿规律图(1∶80万)》,是迄今为止矿种最全、资料最新、信息量最大的全面反映我国南岭勘查成果与成矿规律的区带级别(Ⅲ级成矿单元)成矿规律图。该图件研编实现了4大创新点:①涵盖了... 详细信息

由中国地质科学院矿产资源所编制出版的《南岭成矿带成矿规律图(1∶80万)》,是迄今为止矿种最全、资料最新、信息量最大的全面反映我国南岭勘查成果与成矿规律的区带级别(Ⅲ级成矿单元)成矿规律图。该图件研编实现了4大创新点:①涵盖了南岭已发现的2903处独立矿产地,包括能源、金属、非金属和水气矿产等4大类的76个矿种,实现了南岭成矿带矿种与矿产地的全覆盖;②归并了地质底图的地层并淡化显示,突出华南岩体、隐伏岩体的特色,使得不同构造—建造层地质单元的分布格局一目了然;③实现了矿产地、规模、类型、时代、成矿系列五位一体的综合图例设计,矿产地表达更简洁、直观;④综合成矿系列图、表、成矿体系图、剖面图等,以区域规律图编制的新思路和新方法,更集中反映和彰显南岭成矿带最新科研成果。该图件的研编有助于直观展示南岭成矿带矿产的时空分布格局,深入总结成矿规律,科学圈定重要找矿远景区,对于全面指导南岭的地质找矿工作具有重要的意义。

关键词：南岭成矿规律成矿规律图成矿系列找矿远景区

中国锂矿的多旋回深循环内外生一体化成矿理论及其找矿应用

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地质学报 2024年第3期98卷 889-897页

作者：王登红代鸿章刘善宝王成辉李建康李鹏陈郑辉于扬秦锦华孙艳娄德波姚佛军中国地质科学院矿产资源研究所自然资源部成矿作用与资源评价重点实验室北京100037

中国锂资源的分布具有卤水型与硬岩型相伴相随、若即若离的特点。“多旋回深循环内外生一体化”成锂理论,在多年三稀金属矿产找矿实践和理论研究的基础上不断丰富完善。中国锂矿的形成与“多旋回”构造运动密切相关,从前寒武纪到新生代... 详细信息

中国锂资源的分布具有卤水型与硬岩型相伴相随、若即若离的特点。“多旋回深循环内外生一体化”成锂理论,在多年三稀金属矿产找矿实践和理论研究的基础上不断丰富完善。中国锂矿的形成与“多旋回”构造运动密切相关,从前寒武纪到新生代均有成矿潜力,可构成一个完整的多旋回成矿谱系。锂的“深循环”,一是锂深度参与成岩成矿的物质循环;二是需要一个“圈闭”的构造背景将锂“捕获”以避免其过度分散,锂从开始加入到岩浆与最终定位的深度之差,是硬岩型锂矿成矿的关键之一,压差越大越有利于伟晶岩型锂矿的形成。大量锂矿实例显示锂的物质循环是“内外生一体化”的统一过程,高海拔地区(山上)的含锂地质体(花岗岩类甚至直接就是含锂矿床)经风化剥蚀之后,可能成为沉积型锂矿的物质来源之一;而富含锂的沉积岩经过埋藏、变质、深熔也可以形成含锂的岩浆岩、伟晶岩。我国西部塔里木盆地、四川盆地、扎布耶盆地及东部的江汉盆地、吉泰盆地、周田盆地等大小不一的盆地均含锂,而其周边造山带中也不同程度发育硬岩型锂矿,这就为区域找矿指明了方向。“多旋回深循环内外生一体化”成锂理论是三稀矿产成矿理论的重要组成部分,为我国锂矿找矿工作提供了指导和借鉴,在甲基卡、可尔因、阿尔金、幕阜山等锂矿矿集区的找矿实践中发挥了积极作用。

关键词：锂矿构造运动 “多旋回深循环内外生一体化”成矿理论找矿应用

A Preliminary Review of Metallogenic Regularity of Copper Deposits in China

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Acta Geologica Sinica(English Edition) 2015年第1期89卷 251-269页

作者： YING Lijuan chen Yuchuan WANG Denghong TANG Juxing chen zhenghui WANG chenghui The School of Earth Science and Resources Chang'an University MLR Key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral Resources Chinese Academy of Geological Sciences

Copper resources in China are rich, but imported copper products are still required. Researches on metallogenic regularity of major types of copper deposits by geologists have involved in worldwide classification, significant copper belts, representative copper deposits, etc. Studies on metallogenic regularity of copper deposits in China also have made achievements with a long-term work. Combined with latest exploration advances obtained in recent ten years, this review aims to conclude the achievements of researches on copper metallogenic regularity in China. Based on data of 814 copper deposits and other ore （mineralized） occurrences, ten prediction types of copper deposits have been suggested. Porphyry and skarn copper ores are taken as the key targets. Porphyry copper deposits are the most important one which concentrate in Gangdese, Changdu-Sanjiang, Dexing and East Tianshan. The Cenozoic and Mesozoic are the major metallogenic epochs. Four main metallogenic epochs are been studied based on the copper ore geochronological data including Precambrian Era （Archean and Proterozoic）, Paleozoic Era, Mesozoic Era and Cenozoic Era. Based on the study of metallogenic series of ore deposits in China, twenty-seven metallogenic series of copper deposits are proposed. This is suggested to deepen the study of metallogenic regularity of copper ore and provide the theory guide for copper resources prediction in China.

关键词： copper porphyry copper type prediction type metallogenic regularity metallogenicseries of mineral deposits

A Preliminary Review of Metallogenic Regularity of Tin Deposits in China

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Acta Geologica Sinica(English Edition) 2015年第3期89卷 1021-1035页

作者： chen zhenghui SHENG Jifu LIU Lijun WANG Denghong LIANG Ting WANG chenghui Key Laboratory of Metallogeny and Mineral Resource Assessment Institute of Mineral ResourcesChinese Academy of Geological Sciences China University of Geosciences Key Laboratory of Western China's Mineral Resources and Geological Engineering Ministry of EducationEarth Science and Resources College of Chang'an University

China is rich in tin resources,and contains many types of tin *** the tin deposit types,the cassiterite-sulfide type,skarn type and quartz vein type occupy a large proportion of tin resources and *** the aspect of exploitation and utilization,the most important types are cassiterite-sulfide type and quartz vein *** cassiterite-sulfide type tin deposits are mainly located in Northern Guangxi and Eastern Yunnan,skarn type deposits are mainly distributed in the ore-concentration areas of South Hunan in Middle Nanling,and the quartz vein type tin deposits are mainly distributed in South China,such as Western Fujian,Middle Jiangxi,Northern Guangzhou and Southern *** most important metallogenic epoch for tin deposits is the Mesozoic *** metallogenic geotectonic background is mainly continental environments after orogeny process,with strong tectonic changes,interlaced deep fracture and frequent *** the most distinctive feature is the well developed Mesozoic granites,which have a close relationship with tin *** on the detailed study of the data from 873 tin deposits in China,this paper summarized the metallogenic regularity of tin deposits,classified 20 important metallogenic series of tin or tin-associated deposits,and inferred that the cassiterite-sulfide type,skarn type,quartz vein type and greisen type are the main prediction types of tin ***-four tin-mineralization belts were divided,among which,19 belts are the most *** addition,a series of maps about tin metallogenic belts and tin metallogenic regularity were compiled,aiming to provide theoretical basis for potential estimation and prediction of tin mineral resources.

关键词： tin deposits type of tin deposits mineralization epoch tin metallogenic belt metallogenicregularity

A Preliminary Review of the Metallogenic Regularity of Nickel Deposits in China

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Acta Geologica Sinica(English Edition) 2015年第4期89卷 1375-1397页

作者： SUN Tao WANG Denghong QIAN Zhuangzhi FU Yong chen zhenghui LOU Debo School of Resource Environment and Earth Sciences Yunnan University MRL Key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological Sciences MOE Key Laboratory of Western China's Mineral Resources and Geological Engineering College of Earth Science and ResourcesChang'an University College of Resource and Environmental Engineering Guizhou University

The nickel deposits mainly distributed in 19 provinces and autonomous regions in China are 339 ore deposits/occurrences, including 4 super large-scale deposits, 14 large-scale deposits, 26 middle- scale deposits, 75 small-scale deposits, and 220 mineralized occurrences. The prediction types of mineral resources of nickel deposits are magmatic type, marine sedimentary type and regolith type. The formation age is from the Neoarchean to the Cenozoic with two peaks in the Neoproterozoic and the late Paleozoic. The nickel deposits formed in the Neoproterozoic are located on the margin of the North China Block and Yangtze Block, and those formed in the late Paleozoic are mainly distributed in the Central Asian Orogenic Belt （CAOB）, Emeishan and the Tarim Large Igneous Provinces （LIPs）. Magmatic nickel deposits are mainly related with broken-up continental margin, post-collision extension of the orogenic belt and mantle plume. According to different tectonic backgrounds and main characteristics of magmatism, the Ni-Cu-Co-PGE metallogenie series types of ore deposits related with mantle-derived mafic-ultramafic rocks can be divided into 4 subtypes：（1） the Ni-Cu-Co- PGE metallogenic series subtype of ore deposits related with mantle-derived mafic-ultramafic rocks in the broken-up continental margin, （2） the Ni-Cu-Co-PGE metallogenic series subtype of ore deposits related with mantle-derived mafic-ultramafic rocks in mantle plume magmatism, （3） the Ni-Cu-Co- PGE metallogenic series subtype of ore deposits related with mantle-derived mafic-ultramafic rocks in the subduction of the orogenic belt, and （4） the Ni-Cu-Co-PGE metallogenic series subtype of ore deposits related with mantle-derived mafic-ultramafic rocks in post-collision extension of the orogenic belt. We have discussed in this paper the typical characteristics and metaliogenic models for Neoproterozoic Ni-Cu-（PGE） deposits related with broken-up continental margin, Cambrian marine sedimentary Ni-Mo-V deposits relat

关键词： prediction type of mineral resources metallogenic condition metallogenic regularity,nickel deposits China

A Preliminary Review of Metallogenic Regularity of Tungsten Deposits in China

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Acta Geologica Sinica(English Edition) 2015年第4期89卷 1359-1374页

作者： SHENG Jifu LIU Lijun WANG Denghong chen zhenghui YING Lijuan HUANG Fan WANG Jiahuan ZENG Le Key Laboratory of Metallogeny and Mineral Resource Assessment Institute of Mineral ResourcesChinese Academy of Geological Sciences China University of Geosciences Changjiang University College of Earth Science Jilin University

Tungsten ore resources are abundant in China with relatively complete types of deposits. Skarn type and quartz vein type deposits are dominated in the tungsten resources, whereas quartz vein type wolframite deposits are most important in terms of exploitation and utilization. Skarn type tungsten deposits are concentratedly distributed in the central Nanling region, such as South Hunan, South Anhui and the eastern Qinling region, while quartz vein type tungsten deposits occur mainly in South China, such as West Fujian, South Jiangxi, North Guangdong and South Hunan. The most important metallogenic epoch of tungsten is the Mesozoic, while the metallogenic tectonic setting is featured by an intracontinental environment after orogeny with sever tectonic movements, deep-seated faults and frequent magmatic activities, especially Mesozoic granitoids closely related to tungsten-tin mineralization. 22 metallogenic series of ore deposits characterized by or significantly related to tungsten were defined based on precise statistic information of 1199 tungsten mining areas and thorough the summary of metallogenic regularities. Based on studies of the metallogenic regularity of tungsten deposits, skarn type （or greisen type）, quartz vein type and massif-type of tungsten deposits are thought to be the key prediction types. 65 tungsten-forming belts and 22 key ore concentration areas were ascertained and a distribution map of tungsten-forming belts of China was compiled, which provided a theoretical basis for evaluation and prediction of potential tungsten resources.

关键词： tungsten resources characteristics types of tungsten deposit tungsten-forming belt,metallogenic regularity

A Preliminary Review on the Metallogeny of Pb-Zn Deposits in China

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Acta Geologica Sinica(English Edition) 2015年第4期89卷 1333-1358页

作者： ZHANG Changqing LIU Huan WANG Denghong chen Yuchuan RUI Zongyao LOU Debo WU Yue JIA Fudong chen zhenghui MENG Xuyang Key Laboratory of Metallogeny and Mineral Resource Assessment Institute of Mineral ResourcesCAGS Chinese Academy of Geological Sciences School of Earth Environment and Water Resources Yangtze University China University of Geosciences

Lead and zinc resources are abundant in China, with the reserves of 100 million tons ranking only second in the world. There are more than 3000 lead-zinc mine areas nationwide. The classification of lead-zinc （Pb-Zn） deposits has been a highly controversial issue. From the standpoint of evaluating the potential of mineral resources, we construct a Pb-Zn deposit predictive type of classification scheme, and propose a Pb-Zn deposit comprehensive classification scheme （including 5 classes and 13 sub-types） that regards mineralization as the primary factor and the ore rock as secondary. According to the temporal and spatial distribution of Pb-Zn deposits, we conclude that a multi-period, multi-cycle orogenic environment is the most favorable for lead-zinc deposit growth, that the Proterozoic is the major eon for the growth of igneous-type deposits, the Paleozoic is an important development era for sedimentary Pb-Zn deposits, and the Mesozoic and Cenozoic are the heyday eras of magmatic type lead-zinc deposits. On this basis, we analyse the relationship between tectonic evolution and Pb-Zn metallogenic, and propose that the key factors determining geological mineralization are the metallogenic epoch of mineralization and tectonic environment, which determine the temporal and spatial distribution.

关键词： Deposit type spatial and temporal distribution tectonic environment Pb-Zn deposits China

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天然气省际销售优化分配模型及其应用

天然气工业 2014年第12期34卷 152-155页

作者：陈正惠上海交通大学安泰经济与管理学院中国石油西气东输管道公司

天然气销售是各石油公司业务的重要组成部分,天然气销售业务的盈利状况也会在很大程度上影响到石油公司的整体利润水平。由于目前我国天然气进口价格与国内销售价格倒挂,各石油公司进口天然气业务面临严重亏损,且随着国内天然气价格改... 详细信息

天然气销售是各石油公司业务的重要组成部分,天然气销售业务的盈利状况也会在很大程度上影响到石油公司的整体利润水平。由于目前我国天然气进口价格与国内销售价格倒挂,各石油公司进口天然气业务面临严重亏损,且随着国内天然气价格改革不断推进,天然气销售公司如何提高其经济效益便成为重要问题。为此,以天然气销售公司经济利润最大化为目标,在满足各省天然气最低消费量且不超过各省最大利用能力的条件下,依据国家新出台的天然气价格政策,建立了销售公司的省际销售优化模型,并以中国石油的一条西气东输干线为例对该模型进行了检验。结果表明:线性规划方法是解决天然气销售公司省际销售的科学可行的方法,模型的优化结果能够为天然气销售公司提供有效的决策支持,具有很强的实用性。未来,该研究方法可以进一步扩展到天然气在各省范围内的各地区间和用户间的优化销售,此外,该方法还可以应用于分析其他资源的省际优化销售问题。

关键词：天然气销售公司省际销售线性规划利润最大化优化销售模型应用