北方增生造山成矿系统的深部结构与成矿过程
项目来源
国（略）研（略）(（略）D（略）
项目主持人
肖（略）
项目受资助机构
北（略）地（略）院（略）任（略）
立项年度
2（略）
立项时间
未（略）
项目编号
2（略） YFC0601204
项目级别
国（略）
研究期限
未（略） （略）
受资助金额
0（略）万（略）
学科
深（略）勘（略）
学科代码
未（略）
基金类别
“深（略）勘（略） ”重点专项
关键词
幔（略）成（略） （略）维（略）;（略）通（略） （略）床（略）铜（略）物（略）;（略）氧（略）床（略）m（略）l（略）e（略）e（略）a（略）t（略）m（略）l（略）e（略） （略）t（略）;（略）r（略）d（略）n（略）n（略）s（略）c（略）e（略）K（略）t（略）k（略） （略）o（略）e（略）p（略）t（略）C（略）i（略）l（略）e（略）p（略）t（略）F（略）i（略）i（略）d（略）s（略）
参与者
王（略）李（略）唐（略）解（略）薛（略）石（略）功（略）亚（略）楠（略）国（略）天（略）
参与机构
中（略）院（略）地（略）研（略）中（略）大（略）京（略）疆（略）源（略）环（略）中（略）色（略）产（略）份（略）司（略）矿（略）研（略）限（略）公（略）
项目标书摘要：本课（略）关的岩浆型矿床(包（略）物、铬铁矿)成矿系（略）作用过程中成矿物质（略）幔源岩浆成矿系统重（略）构，提取成矿作用特（略）理和地球化学资料，（略）质模型；通过对喀拉（略）和地—物—化信息三（略）区3000m“透明（略）铬铁矿中发现了“浅（略）,其形成可能经历了（略）后期的异剥钙榴岩化（略）形成与PMM具有相（略）定了中亚造山带铜镍（略）-2 北（略）项目受资助省
1.北方增生造山成矿系统的深部结构与成矿过程最终报告(Acceptance report on deep structure and metallogenic process of accretion orogenic metallogenic system in north China)
- 关键词：
- 造山型矿床、碰撞体制、增生体制、成矿作用、成矿预测、Orogenic deposit、Collisional orogeny、Accretive orogenic system、mineralization、metallogenic prediction
- 陈衍景；韩宝福；季建清；吴昌志；
- 《北京大学；中国科学院新疆生态与地理研究所；》
- 2021年
- 报告
比较矿床学思路和成矿系统理论为指导，紧抓天山—阿尔泰富含断控脉状造山型金、铜、铅锌等矿床的特色，以及碰撞前造山型矿床较少的疑难问题，综合解剖金窝子和哈图等金矿集中区和额尔齐斯金多金属矿带，查明其矿床地质地球化学特征和成矿地质条件，特别是不同金属矿种的成矿流体性质、演化及其共性和差异，建立造山型成矿系统的元素分带三维结构和成矿过程模型；厘定增生型和碰撞型造山体制之造山型成矿系统的地质地球化学特点、有利成矿空间，发展造山型矿床成矿理论，建立造山型矿床的勘查标志体系和深部预测模型，研究指出天山—阿尔泰地区造山型成矿系统找矿潜力和方向，结合矿集区透明化探测，推动深部资源探测的突破。Under the guidance of comparative ore deposit theory and metallogenic system theory,we should grasp the characteristics of gold,copper,lead and zinc deposits rich in fault-controlling vein orogenic type in tianshan-altai,as well as the problem that there are few orogenic deposits before collision.In this proposal we suggest a comparative study of the Jinwozi,Hatu and Tuokuzibayi gold fields in mgeology and geochemistry.To unravel the geological and geochemical characteristics and metallogenic geological conditions of the deposits,especially the metallogenic fluid properties,evolution,commonness and differences of different metal minerals,and establish the element zonal three-dimensional structure and metallogenic process model of orogenic metallogenic system.To determine the geogeochemical characteristics of orogenic metallogenic systems with proliferative and collisional orogenic systems,and to develop the metallogenic theory of orogenic deposits.The features and regularities of metallic mineralization in accretionary and collisional orogenies are constrained,and the genetic models for gold mineralization on deposit and regional scales are proposed,which possibly improve the ore-forming theory,and broaden scope of ore exploration,help targeting regional exploration and predictionat depth of deposits.
...2.斑岩成矿系统时空物质结构与成矿过程最终报告(Temporal-spatial-material architecture and ore-forming processes of Paleozoic porphyry mineralization system+final report)
- 关键词：
- 斑岩成矿系统、岛弧演化、成矿过程、古生代、天山、中亚造山带、porphyry mineralization system、arc maturity、ore-forming processes、Paleozoic、Tianshan、Central Asian Orogenic Belt
- 薛春纪；安伟才；赵晓波；王银宏；赵云；李诺；段士刚；高荣臻；代俊峰；俎波；
- 《中国地质大学；中国科学院新疆生态与地理研究所；中国地质科学院矿产资源研究所；》
- 2021年
- 报告
课题研究聚焦“古生代斑岩成矿系统时空物质结构和形成环境”关键问题和“为深部矿产资源勘查突破提供理论支撑”的科学目标，取得创新成果包括:⑴发现中亚大规模斑岩成矿，集中发生在洋盆演化末期的成熟陆缘/岛弧环境，厘清了东天山大南湖岛弧古生代压性弧—张性弧交替式变迁过程。⑵研究表明，天山古生代斑岩成矿系统由具有密切时—空—物质关联的斑岩型、矽卡岩型、高硫—低硫型浅成低温热液型矿床构成，建立了吐拉苏斑岩成矿系统模型，预测出塔乌尔别克和克峡希2处深部找矿靶区。⑶查明了大南湖岛弧带洋壳俯冲和碰撞后伸展两种体制斑岩矿床流体特征，揭示出岩浆热液在深部的不混溶过程是导致Cu与Mo矿化分离的重要机制，查明了不同阶段Cu同位素组成变化与分馏机制。⑷提出天山矽卡岩型铜金成矿，以花岗岩类侵入体与碳酸盐岩地层的扩散交代为主要方式，流体不混溶和流体混合是金属沉淀的主要机制；而矽卡岩型铅锌成矿，多以岩浆热液沿层间裂隙等构造薄弱带对富钙质火山碎屑岩、碳酸盐岩的渗滤交代为主要方式。⑸揭示出周期性岩浆补给和混合对浅成低温热液型金成矿的重要贡献；在阿希低硫型金矿床发现超显微纳米级单质金和固溶体金两种不可见金，载金矿物微区原位元素—同位素联合揭示出水岩反应、流体混合和流体沸腾均是控制浅成低温热液型金成矿的重要机制。⑹围绕斑岩成矿系统的变化与保存，研究揭示出成矿后的快速埋藏及缓慢长期剥露，是吐拉苏盆地晚古生代浅成低温热液型金矿床保存的关键。The project focused on the issue of"temporal and spatial architecture and tectonic setting of Paleozoic porphyry mineralization system"and the scientific goal of"providing theoretical support for exploration breakthrough of mineral resources at depths".The innovative achievements include:(1)large-scale porphyry Cu mineralization in western Central Asia occurs in mature continental margin/island arc environment during the final closure of the Paleo-Asian Ocean;alternating tectonic transition of the Paleozoic Dananhu arc in eastern Tianshan from compressive to tensional arc has been clarified.(2)Paleozoic porphyry mineralization system in the Tianshan belt comprise temporal-spatial-material correlated porphyry,skarn,and high/low-sulfidation epithermal deposits;the mineralization system model at the Tulasu cluster has been established and two deep prospecting targets at Tawuerbieke and Kexiaxi have been predicted.(3)characteristics of ore-forming fluids in typical porphyry Cu deposits from two contrasting tectonic settings(i.e.,oceanic subduction and post-collisional)have been clarified;immiscible process of magmatic fluids at depths is an important mechanism leading to the separation of Cu and Mo mineralization;the variations of Cu isotopes in different mineralization stages and its fractionation mechanism were elucidated.(4)copper-gold skarn in the Tianshan is mainly formed from diffusion and metasomatism of granite intrusions and carbonate formations;contrarily,lead-zinc skarn is mainly related to infiltration and metasomatism of calcareous volcanic clastic rocks and carbonate rocks by magmatic fluids along structurally weak zones,i.e.,interlayer fissures.(5)contribution of periodic magma supply and mixing to epithermal gold deposits have been revealed.Two style of invisible gold,i.e.,ultra-micro scale and solid solution,were found at the Axi low sulfication epithermal gold deposit;In-situ studies revealed that water-rock reaction,fluid mixing and fluid boiling are important for epithermal Au mineralization.(6)rapid burial and long-term exhumation after mineralization are key criterial to the preservation of Paleozoic epithermal gold deposits at Tulasu.
...3.北方增生造山成矿系统的深部结构与成矿过程项目2019年度报告(2019Annual Research Progress Report of the Deep Structure and Metallogenic Process of the North China Accretionary Metallogenic System)
- 关键词：
- 中亚造山带、增生成矿域、综合地球物理勘探、深部结构、Central Asia Orogenic Belt、Accretionary Metallogenic system、Integrated Geophysical Exploration、Deep Structure
- 肖文交；敖松坚；刘恺；路朋罗；
- 《中国科学院新疆生态与地理研究所；中国科学院地质与地球物理研究所；中国科学院地质与地球物理研究所；中国科学院地质与地球物理研究所；》
- 2019年
- 报告
本项目“北方增生造山成矿系统的深部结构与成矿过程”属于《深地资源勘查开采》重点专项。北方增生造山带西部是我国矿产资源战略基地之一，孕育大型增生成矿系统。然而，造山带深部结构、物质成分缺乏精细制约，对各类成矿系统及成矿过程的控制机理不明；典型矿床勘探深度仅达1000米以浅。因此急需研究北方西部成矿系统深部结构与成矿过程，加大勘探深度、拓展深部找矿空间。本项目瞄准“北方西部增生成矿系统的深部制约”这一关键科学问题。以增生造山带5个主要成矿系统为重点研究对象，按照“深部结构→成矿背景→成矿过程→末端效应→定位机制”的研究思路，揭示北方增生成矿系统的深部结构与成矿过程，发展增生造山成矿理论。本项目的实施将在北方西部增生成矿系统深部结构、成矿构造背景、物质时空框架、成矿富集过程、成矿末端效应与矿体定位机制等方面取得一批创新性认识，发表一批具有重大国际影响的学术论文和专著，发展增生造山成矿理论。同时，通过实施800km综合地球物理剖面、典型矿集区3000米“透明化”,查明成矿系统深部结构与矿体定位机制，为资源评价勘探提供理论支撑。 This project,“The deep structure and metallogenic process of the North China accretionary metallogenic system”,belongs to the Deep Resources Exploration and Mining,a special project of National Key R&D Program of China.The west part of the North China accretionary orogen is one of the important strategic bases of mineral resources,containing giant metallogenic systems.However,the deep structure and materials of the orogen is not constrained well,and the mechanisms of the multiple metallogenic systems and processes are not clearly understood,and the depths of exploration of the typical ore deposits are less than 1000m.Thus,it is urgent to research the deep structure and metallogenic processes of the western North China accretionary orogen,to deepen the explorations and to expand the space for deep explorations.This project aims at the key scientific question,namely“constraints on the deep accretionary-metallogenic system in the western North China accretionary orogen”,and the major research objectives include the five major metallogenic systems in the accretionary orogen,in order to uncover the deep structure and metallogenic process of the North China accretionary-metallogenic system and to develop the accretionary-metallogenic theory.The implementation of this project will make innovative progress on the deep structure,tectono-metallogenic background,spatial and temporal framework,mineralizing and enriching processes,mineralization end effects and ore-body-locating mechanisms of the accretionary-metallogenic system in the western North China accretionary orogen.Importantly influential academic papers and monographs will be published and the accretionary-metallogenic theory will be developed through this project.In the meantime,the deep structure of the accretionary-metallogenic system and the ore-body-locating mechanism will be revealed,based on the 800 km integrated geophysical profile and the“transparency”of typical ore clusters above 3000m depth,in order to theoretically support the resource exploration and assessment.
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