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中国科学院地质与地球物理研究所第十届(2010年度)学术年会

作者： wenjiao xiao~**,baochun huang,chunming han,shu sun,jiliang li state key laboratory of lithospheric evolution,institute of geology and geophysics,chinese academy of sciences,beijing 100029.china

The Altaids is one of the largest accretionary collages in the world,and the tectonic styles of the accretionary processes have been interpreted in several ways,including as an amalgamation of multiple terranes,as a result of oroclinal bending of a long,single arc,or as a Caledonian continental *** on recent tectonostratigraphic analyses together with paleomagnetic data,the tectonic styles of the Neoproterozoic to Paleozoic accretionary processes of the Altaids are *** Western Altaids is the main focus of the study,which was mainly composed of several independent linear components such as arcs and microcontinents with Proterozoic basement and cover *** kinds of arcs existed in the Paleo-Asian Ocean,including a complicated type of arc(Alaskan-type),which is a combination of the Japan-and Mariana-type intra-oceanic arcs and the Cordillera-type continental *** linear components rotated and collided with each other with multiple subduction polarities,which could have been an important result of multiple linear element amalgamation,and which has contributed greatly to the architecture of the Eurasian continent. The basic tectonic styles of the Altaids can be summarized as arc-arc collision,oroclinal bending and large-scale rotation,and multiple subductions with a complicated archipelago *** basic features of accretionary orogens in general can be attributed to the amalgamation of complicated multiple linear *** Mesozoic to Cenozoic accretionary orogens in the world are also characterized by processes of multiple linear element *** attention should be paid to the multiple linear element amalgamation of ancient accretionary orogens,which will shed light on lateral and vertical continental growth.

关键词： Vertical interaction Multiple linear element amalgamation Kazakhstan orocline Altaids Accretionary orogens Tectonics

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Middle Cambrian to Permian subduction-related accretionary orogenesis of Northern Xinjiang,NW china:Implications for the tectonic evolution of central Asia

Middle Cambrian to Permian subduction-related accretionary o...

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中国科学院地质与地球物理研究所2008学术年会

作者： wenjiao xiao~*(a,*),chunming han~a,Chao Yuan~b,Min sun~c,Shoufa lin~d, hanlin Chen~e,Zilong li~e,jiliang li~a,shu sun~a a state key laboratory of lithospheric evolution,institute of geology and geophysics,chinese academy of sciences,P.O.Box 9825,beijing 100029.china b Guangzhou institute of Geochemistry,chinese academy of sciences,Guangzhou 510640,Guangdong,china c Department of Earth sciences,The University of Hong Kong,Hong Kong,china d Department of Earth sciences,University of Waterloo,200 University Avenue West,Waterloo,Ont.,Canada e Faculty of sciences,Zhejiang University,hangzhou 310027,Zhejiang,china

Middle-Cambrian to Permian subduction-related records are widely distributed in Northern Xinjiang which can be grouped into the chinese Altay-East Junggar-Eastern Tien Shan,West Junggar,Yili,and Tarim *** integrating paleogeographic and geological data,we suppose that the chinese Altay-East Junggar-Eastern Tien Shan domain was more closely located to Siberia,while the West Junggar and Yili domains occupied an intermediate position near the Kazakhstan block in the early Paleozoic Paleoasian *** of Andean-type magmatic arcs,island arcs,accretionary wedges,ophiolitic slices,and/or microcontinents shows an archipelago paleogeography forming a huge accretionary active margin *** Tarim domain was on the opposite side of the early Paleozoic Paleoasian Ocean remaining passive *** tectonic units drifted northwards and approached the southern active margin of the Siberian craton in the late Paleozoic,leading to termination of the Paleoasian Ocean and formation of a complicated orogenic collage between Siberian craton and the Tarim block between the end-Permian and *** multiple accretion processes significantly contributed to the lateral growth of central Asia.

关键词： Northern Xinjiang Altaids Intra-oceanic subduction Ophiolite Accretion Central Asia

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Major types,characteristics and geodynamic mechanism of Upper Paleozoic copper deposits in northern Xinjiang,northwestern china

Major types,characteristics and geodynamic mechanism of Uppe...

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中国科学院地质与地球物理研究所2006学术年会

作者： chunming han~a,wenjiao xiao~*3,Guochun Zhao~b,Jingwen Mao~c,Sanzhong li~d, Zhen Yan~a,Qigui Mao~a a state key laboratory of lithospheric evolution,institute of geology and geophysics,chinese academy of sciences,beijing 100029,P.R.china b Department of Earth sciences,The University of Hong Kong,Pokfulam Road,Hong Kong,china c institute of Mineral Deposits,chinese academy of Geological sciences,26 Baiwanzhuang Road,beijing, 100037,P.R.china d College of Marine Geosciences,Ocean University of china,Qingdao 266003,Shangdong,P.R.china

Syn- and post-orogenic Cu mineralization in the northern Xinjiang Paleozoic accretionary and collisional orogenic belt in northwestern china is of great economic interest. About 40 Cu-bearing deposits have been discovered in the area,making it one of the most important metallogenic belts in *** to their host rocks,these deposits can be classified into four principal types:(1) volcanic-hosted massive sulfide Cu-Pb-Zn deposits;(2) porphyry Cu-Mo-(Au) deposits;(3) magmatic Cu-Ni sulfide deposits;and(4) Cu-Mo-Au-Ag skarn ***,the development of these Upper Paleozoic deposits was closely associated with subduction and collision of the ancient Asian Ocean between the Siberian Block and the Tarim *** important metallogenic epoch involving formation of Cu-Pb-Zn-polymetallic deposits formed during southwestern rollback and associated slab-detachment during Devonian time(400-370 Ma).In southern Altay,southwestern-direct rollback and associated slab-detachment occurred during the Devonian(400-370 Ma),in response to later collision at the accreted continetal margin[xiao,W.J.,Windley,B.F.,Badarch,G.,sun,S., li,J.L.,Qin,K.Z.,Wang,Z.H.,*** accretionary and convergent tectonics of the southern Altaids:implications for the lateral growth of Central *** of the Geological Society of London 161,339-342],during which the Ashele Cu-Pb-Zn and Keketale Pb-Zn deposits *** led to the accretion of the Junggar Ocean arc system in the Middle *** the Lower to Middle Carboniferous,north-dipping subduction beneath the Dananhu arc triggered the emplacement of granitic porphyries in the Tousuquan and Dananhu island arc belt in the east Tianshan,leading to the formation of the Tuwu and Yandong porphyry Cu-Mo-Au-Ag *** the Upper Carboniferous to Lower Permian,large mafic-ultramafic complexes were emplaced during closure of the ancient Tianshan Ocean,resulting in the formation of several magmatic Cu-Ni sulfide deposi

关键词： Copper deposits Metallogenic belts Tectonic setting Xinjiang china

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Neoproterozoic-Paleozoic Tectonic evolution of the Northeastern Tarim Block： Constraints from ^40Ar/^39Ar Geochronology in the Kuluketage Area, NW china

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Acta Geologica Sinica(English Edition) 2017年第4期91卷 1231-1247页

作者： ZhanG Zhiyong ZHU Wenbin ZHENG Dewen ZHENG Bihai xiao wenjiao li Daming han chunming state key laboratory of lithospheric evolution Institute of Geology and Geophysics Chinese Academy of Sciences Beij'ing 100029 China School of Earth sciences The University of Melbourne Victoria 3010 Australia state key laboratory for Mineral Deposits Research Department of Earth Sciences Nanjing University Nanjing 210093 China state key laboratory of Earthquake Dynamics Institute of Geology China Earthquake Administration Beo'ing 100029 China CAS Center for Excellence in Tibetan Plateau Earth sciences Beijing 100101 China

Seventeen new ^40Ar/^39Ar analyses reported for ten Tarim Precambrian basement samples from the Kuluketage area, are applied to reconstruct the regional thermo-tectonic history together with previously published data. Eight samples were taken adjacent to the Xingdi and Xinger faults, major structures in the study area, whereas a further two were sampled at some distance from the faults. 4^40Ar/^39Ar data from the latter record rapid cooling following a Neoproterozoic magmatic/metamorphic event and mild Paleozoic thermal disturbance. Paleozoic ^40Ar/^39Ar ages from the study area, as well as from the Central Tianshan and eastern Southern Tianshan suggest two strong deformational periods at ~390 Ma and ~300 Ma. During the older period, argon isotopic systems were reset/disturbed by high temperature related to arc magmatism resulting from subduction of the South Tianshan paleo-oceanic crust, possibly in combination with reactivation of Precambrian faults. The younger period is characterized by widespread late Carboniferous-early Permian intracontinental deformation, which is related to the final amalgamation of the Central Asian Orogenic Belt. Previously published apatite fission track data attest to a long history of post-collisional cooling, which is attributed to continued propagation of deformation within the Central Asian Orogenic Belt.

关键词： ^40Ar/^39 geochronology Northeastern Tarim Block South Tianshan Ocean Neoproterozoic-Paleozoic thermo-tectonic evolution

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Anatomy of composition and nature of plate convergence： Insights for alternative thoughts for terminal India-Eurasia collision

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Science china Earth sciences 2017年第6期60卷 1015-1039页

作者： xiao wenjiao AO SongJian YANG Lei han chunming WAN Bo ZhanG Ji'En ZhanG ZhiYong li Rui CHEN ZhenYu SONG shuaiHua state key laboratory of lithospheric evolution Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China chinese academy of sciences Center for Excellence in Tibetan Plateau Earth Science Chinese Academy of Sciences Beijing 100101 China University of chinese academy of sciences Beijing 100049 China

The pattern and timing of collision between India and Eurasia have long been a major concern of the international community. However, no consensus has been reached hitherto. To explore and resolve the disagreements in the Himalayan study,in this paper we begin with the methodology and basic principles for the anatomy of composition and nature of convergent margins,then followed by an effort to conduct a similar anatomy for the India-Eurasia collision. One of the most common patterns of plate convergence involves a passive continental margin, an active continental margin and intra-oceanic basins together with accreted terranes in between. The ultimate configuration and location of the terminal suture zone are controlled by the basal surface of the accretionary wedge, which may show fairly complex morphology with Z-shape and fluctuant geometry. One plausible method to determine the terminal suture zone is to dissect the compositions and structures of active continental margins. It requires a focus on various tectonic elements belonging to the upper plate, such as accretionary wedges, high-pressure(HP)-ultra-high-pressure(UHP) metamorphic rocks, Barrovian-type metamorphic rocks and basement nappes, together with superimposed forearc *** geological records can define the extreme limits and the intervening surface separating active margin from the passive one,thus offering a general sketch for the surface trace of the terminal suture zone often with a cryptic feature. Furthermore, the occurrence of the cryptic suture zone in depth may be constrained by geophysical data, which, in combination with outcrop studies of HP-UHP metamorphic rocks, enables us to outline the terminal suture zone. The southern part of the Himalayan orogen records complicated temporal and spatial features, which are hard to be fully explained by the classic "two-plate-one-ocean" template,therefore re-anatomy of the compositions and nature for this region is necessitated. Taking advantage of

关键词： Himalayan orogen Yarlung-Zangbo ophiolite Tethyan Himalayan Sequence India-Eurasia collision Anatomy of orogeny

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Provenance and tectonic settings of Permian turbidites from the Beishan Mountains,NW china:Implications for the Late Paleozoic accretionary tectonics of the southern Altaids

Provenance and tectonic settings of Permian turbidites from ...

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中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： Qianqian Guo wenjiao xiao~* Brian F.Windley Qigui Mao chunming han Junfeng Qu Songjian Ao jiliang li Dongfang Song Yong Yong state key laboratory of lithosphenc evolution Institute of Geology and GeophysicsChinese Academy of Sciences Graduate University of chinese academy of sciences state key laboratory of lithospheric evolution Institute of Geology and GeophysicsChinese Academy of Sciences Department of geology University of Leicester beijing institute of geology for Mineral Resources state key laboratory of lithospheric evolution Institute of Geology and GeophysicsChinese Academy of Sciences

The Beishan orogenic belt,which connects the Tianshan suture on the west and Solonker suture on the east,contains key evidence for the termination time of the southern *** for evaluating different controversial tectonic models are Permian marine volcaniclastic arenites in the liuyuan and Heishankou areas,which are dominated by greywackes and lenticular pebbly litharenites that contain grading,groove marks,and erosional bases,which provide evidence of turbidity *** from the liuyuan section are dominated by angular basaltic,andesitic,and feldspar fragments,but sandstones from the Heishankou section mainly consist of andesitic and felsic volcanic *** relations suggest derivation from two different *** element compositions suggest that the source rocks of the Heishankou litharenites were more SiO-rich than those at *** at Heishankou are characterized by lower Ni-Co-Cr-V and slightly higher Th and La contents than those at *** indicates that the litharenites in the liuyuan and Heishankou areas were derived from intermediatemafic and intermediate-felsic source rocks,*** setting discrimination plots suggest that the liuyuan sandstones were deposited as detritus from an oceanic island arc,but the Heishankou sediments from an Andean continental *** petrological and geochemical data from these two types of Permian turbidites suggest that an arc-continent collision took place in the Early Permian,and this is consistent with the Permian termination of the southern Altaids.

关键词： Eeishan Mountains Permian turbidites Geochemistry Provenance Tectonic setting Southern Altaids

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西天山造山带晚古生代构造演化和成矿作用

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地质科学 2021年第3期56卷 701-729页

作者：李紫源肖文交谢明财韩春明中国科学院地质与地球物理研究所岩石圈演化国家重点实验室北京100029 中国科学院大学地球科学学院北京100049 中国科学院矿产资源研究院重点实验室北京100029

西天山是我国重要的内生金属矿床集中区,其矿种包括有铜、镍、钼、铁、金、锌等,这些矿产在前寒武纪和显生宙的地质历史中分别形成了大量的成矿体系。通过对西天山成矿地质背景和成矿类型的研究,厘定了5种内生金属矿床类型:1)岩浆型铜... 详细信息

西天山是我国重要的内生金属矿床集中区,其矿种包括有铜、镍、钼、铁、金、锌等,这些矿产在前寒武纪和显生宙的地质历史中分别形成了大量的成矿体系。通过对西天山成矿地质背景和成矿类型的研究,厘定了5种内生金属矿床类型:1)岩浆型铜镍矿床;2)斑岩铜钼矿床;3)火山岩型铁矿床;4)浅成低温热液型金矿床;5)造山型金铜矿床。典型矿床有菁布拉克铜镍矿床、达巴特铜钼矿床、喇嘛苏铜矿床、敦德铁锌矿床、备战铁矿床、阿希金矿、伊尔曼得金矿床和卡特巴阿苏金矿床等。从构造上看,这些矿床的发育与西天山造山带的增生和汇聚作用密切相关。矿床的形成经历了3个主要阶:早志留世,南天山洋北向俯冲于伊犁—中天山地块之下,形成与铜镍矿床有关的菁布拉克岩体;早-晚石炭世,由于北向俯冲作用,形成了斑岩型铜金矿床、低温热液型金矿床和火山岩型铁矿床;晚石炭世早期,南天山洋壳可能被消耗殆尽,导致了塔里木克拉通与南天山造山带的碰撞。大花岗岩体广泛分布于北天山增生楔和伊犁—中天山地块,并伴随造山型的金矿床形成。

关键词：成矿体系造山带成矿动力学背景西天山

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增生型造山带结构解析与时空制约

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地球科学 2019年第5期44卷 1661-1687页

作者：肖文交李继亮宋东方韩春明万博张继恩敖松坚张志勇中国科学院新疆生态与地理研究所新疆矿产资源研究中心新疆乌鲁木齐830011 中国科学院地质与地球物理研究所岩石圈演化国家重点实验室北京100029 中国科学院大学地球与行星科学学院北京100049

增生型造山带记录复杂的板块汇聚过程,增生造山作用演化历史漫长,发育多期次造山作用.就增生型造山带的特征与复杂性进行简要总结与评述,并讨论增生造山作用时空分析思路.增生造山作用是多种性质(汇聚、转换和离散)的板块边缘,沿一个核... 详细信息

增生型造山带记录复杂的板块汇聚过程,增生造山作用演化历史漫长,发育多期次造山作用.就增生型造山带的特征与复杂性进行简要总结与评述,并讨论增生造山作用时空分析思路.增生造山作用是多种性质(汇聚、转换和离散)的板块边缘,沿一个核心大陆边缘最终发生复杂相互作用动力学过程的总和.弧前发育增生杂岩和各种混杂岩或者构造岩片,上叠有以弧前盆地为代表的各类沉积盆地,共同制约增生过程的时空演化特征.增生型造山带多发育多岛海复杂古地理格局,增生造山作用具有多组分、多岛海、多盆地类型、多种性质的岩浆活动、宽阔的增生杂岩、多俯冲极性、多地体拼贴、长期演化与面状增生等特性.以古地磁、古地理、古生物与古气候等资料为基本依据,划分一级大地构造单元界线.以构造地质解析和关键地区详细的地质填图,结合物质成分和年代学分析,进行二级大地构造单元及其相互关系的详细解剖.卷入增生造山事件中最年轻的地质体或者组分,提供了该期增生事件时限的下限;卷入增生造山事件中最年轻的角度不整合,以及最年轻的高压-低温变质事件,可能提供了最晚增生事件时限的下限;而未卷入增生造山事件中最老的区域性角度不整合,则可能提供了最晚增生事件时限的上限.

关键词：增生型造山带增生杂岩造山带结构复式增生造山作用增生造山作用时限大地构造学

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Micromine软件在西天山备战铁矿床三维建模及资源量估算中的应用

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新疆地质 2021年第4期39卷 614-619页

作者：谢明材李紫源肖文交韩春明中国科学院矿产资源研究院重点实验室北京100029 中国科学院大学地球与行星科学学院北京100049 中国科学院地质与地球物理研究所岩石圈演化国家重点实验室北京100029

矿床三维立体模型是“数字矿山”的基础,在综合研究区域成矿地质背景、矿床地质特征、已有勘探资料和澳大利亚Micromine软件技术研究基础上,构建了备战铁矿床地表模型、矿体模型、钻孔模型和综合地质模型。在立方体预测模型基础上,综合... 详细信息

矿床三维立体模型是“数字矿山”的基础,在综合研究区域成矿地质背景、矿床地质特征、已有勘探资料和澳大利亚Micromine软件技术研究基础上,构建了备战铁矿床地表模型、矿体模型、钻孔模型和综合地质模型。在立方体预测模型基础上,综合分析处理各种深部找矿评价定量化信息,建立研究区三维实体模型。据实体模型进行研究区三维立方体提取,并将找矿定量化信息赋予每一个立方体,应用距离反比加权法,开展研究区深部矿体三维预测,优选找矿区和资源量估算,为该矿床深部找矿和矿山开采提供理论支撑和技术依据。

关键词：备战三维立体模型三维实体模型 Micromine软件

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新疆智博铁矿床三维地质建模及深部成矿预测

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新疆地质 2021年第4期39卷 627-631页

作者：李紫源谢明财肖文交韩春明中国科学院地质与地球物理研究所岩石圈演化国家重点实验室北京100029 中国科学院大学地球与行星科学学院北京100049 中国科学院矿产资源研究院重点实验室北京100029

随着浅部矿的日益减少,深部找矿任务越来越受到重视。三维地质建模技术在成矿预测、资源定量评价等方面得到广泛应用。基于Micromine软件平台利用三维建模技术及地质统计学等方法,结合收集的矿区勘探工程数据,构建了西天山典型火山岩型... 详细信息

随着浅部矿的日益减少,深部找矿任务越来越受到重视。三维地质建模技术在成矿预测、资源定量评价等方面得到广泛应用。基于Micromine软件平台利用三维建模技术及地质统计学等方法,结合收集的矿区勘探工程数据,构建了西天山典型火山岩型铁矿床——新疆智博铁矿地表模型、地层模型、钻孔模型、矿体模型等三维地质模型。基于地质认识及构建的三维地质模型的研究得出:①新疆和静县智博火山岩型铁矿床具层控特征;②矿床控矿因素包括地层标志和围岩蚀变;③初步估算靶区资源量为9382.85×10^(4) t。

关键词：智博铁矿床 Micromine软件平台三维地质模型成矿预测深部找矿

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