水系沉积物测量在新疆霍什布拉克地区找矿应用

通过对新疆西南天山霍什布拉克地区1∶5万水系沉积物测量,总结了区域主要成矿元素的分布型式、元素富集与分散规律。在综合分析研究区域成矿地质条件的基础上,择优选择了Hs46乙2综合异常开展地质综合找矿,新发现琼恰特北岩溶角砾岩型中型铅锌矿床。该矿床的发现对于西南天山造山带前陆盆地边缘碳酸盐岩建造寻找同类型铅锌矿床具有一定的指导意义。     

中天山巴伦台-奎先达坂一带铅锌矿成矿地质特征及找矿前景

巴伦台-奎先达坂一带位于博罗科努金、铜、铅锌、铁矿带中,是中天山重要的成矿区带之一,带内发现铁、铅锌、铜矿(床)点数10处。以该区1∶5万化探普查、区域地质调查资料为基础,以发现的铁铅锌多金属矿初步评价成果为依据,总结了区域成矿分布规律、成矿地质背景、矿床地质特征、区域物化探并进行分析和对比,初步建立了巴伦台-奎先达坂一带主要矿床类型的找矿标志和综合地质找矿模型,为该地区寻找大中型铅锌矿床指出了方向。     

西南天山找矿又获新进展

南天山成矿带是中亚最重要的金汞锑成矿带，境外20世纪80年代前在该带已发现了穆龙套金矿床、海德尔坎汞锑矿床、卡达姆萨依锑矿床、琼科伊汞矿床及萨雷贾次锡矿等一批超大型-大型矿床.我国西南天山是南天山巨型成矿带南部南缘的东延部分，上世纪末，通过国际合作及对比研究，已发现了萨瓦亚尔顿金锑矿床、乌拉根铅锌矿及霍什布拉克铅矿床，实现了国内西南天山找矿的第一次重大突破。     

西南天山典型铅锌矿床地质特征与成矿规律

正西南天山造山带是我国重要的多金属成矿带之一,蕴含着丰富的铅锌资源,具有良好的铅锌找矿前景。自"十一五"项目实施以来,随着乌拉根大型铅锌矿的发现,西南天山的铅锌找矿潜力越来越受到人们的重视。总结该地区铅锌矿的成矿规律,对西南天山地区进一步找矿具有重要意义。笔者搜集分析了西南天山地区典型铅锌矿床的地质特征,通过对比、总结发现西南天山地区铅锌矿具有明显的时空分布规律,在时间上主要分布在古生代奥陶     

新疆西天山克拉克斯赛依金矿点地质特征

克拉克斯赛依金矿点处于中亚南天山锑、汞、金成矿带,距哈萨克斯坦大型的穆龙套型查尔库拉金矿床仅6km,资料显示二者成矿背景和成矿特征具有一致性。在分析克拉克斯赛依金矿点的地质背景、矿区地质、矿体地质特征的基础上,与吉尔吉斯斯坦的库姆托尔金矿床、新疆萨瓦亚尔顿金矿床两个典型穆龙套金矿床的成矿特征进行了对比分析,进而指出该金矿点的成矿类型不是热液蚀变型,且与穆龙套型相似,具有较好的穆龙套型金矿成矿和找矿潜力。     

滇东北悦乐铅锌矿区构造与成矿

<正>大关悦乐铅锌矿床是在滇东北铅锌多金属成矿带内新近勘查发现的。矿区位于扬子准地台西南缘滇东北台褶带中北部、康滇地轴的东侧,地处镇雄—昭通凹褶束勾准向斜东翼南东段,属于川滇黔多金属成矿域之滇东北铅锌多金属成矿带的北段。本次经过较为详细的地质调查、矿床地质研究工作,初步查明区内构造与铅锌成矿的关系,可指导矿区及区域找矿勘查工作的部     

西藏隆子县柯月铅锌锑银矿床地质特征

<正>柯月铅锌锑银矿床是藏南"锑金多金属"成矿带上新发现的重要矿床,其成矿元素多,资源储量丰富,已达到中型规模。由于矿床研究程度不足,一定程度的滞碍了进一步找矿前景和方向。本文通过野外详细的地质调查和室内镜下观察工作,对柯月铅锌锑银矿床地质特征进行初步研究,为矿区后续的找矿和研究工作奠定基础。1矿区地质柯月矿床位于特提斯喜马拉雅板片东南部,     

新疆天湖铁矿床地质特征初步研究

<正>新疆东天山成矿带是我国重要的Fe、Cu、Ni多金属成矿带之一(Mao et al.,2005;王登红等,2006),天湖铁矿床是位于东天山成矿带东段的大型铁矿床(陈毓川等,2008)。本文在野外调查基础上,详细研究了矿床地质特征,初步提出成因认识,为今后正确建立矿床模型提供依据。1成矿地质背景天湖铁矿床大地构造上处于中天山地块东     

盘龙铅锌矿深部找矿成果及其地质意义

盘龙铅锌矿地处广西象州—武宣重晶石铅锌成矿带南端,地质工作程度较高,历经了普查、详查各阶段的发展,但一直以来铅锌找矿工作成效不大,探明的资源储量仅为中型铅锌矿床规模。近两年来,矿山加强矿床成矿地质条件、控矿因素及成矿规律研究,不囿于以往地质工作形成的找矿思路,大胆开展深部找矿尝试,取得了显著的找矿效果。本文在介绍盘龙铅锌矿勘查概况、成矿地质背景与地质特征的基础上,总结了矿山深部找矿成功的经验,讨论了矿床控矿因素与成矿规律,指出盘龙铅锌矿深部找矿的成功对象州—武宣地区寻找大型铅锌矿床和在该地区开展深部铅锌找矿均具有重要的地质意义。     

西南三江锌铅银铜锑金成矿带成矿特征及资源潜力

西南三江成矿带是我国重要有色金属和贵金属多金属成矿带之一,锌铅银铜锑金等多金属矿产资源十分丰富。本文从西南三江成矿带范围、成矿地质条件、主攻矿种、矿床类型和矿产资源潜力等方面概述了西南三江成矿带的成矿特征及资源潜力。西南三江成矿带地处特提斯—喜马拉雅构造域的东部,是欧亚板块与印度板块碰撞结合带,大地构造复杂,地层发育齐全,岩浆活动频繁,成矿地质条件优越。西南三江成矿带划分了与富碱性斑岩有关的金铜钼铅锌矿床成矿系列、与碳酸盐岩—碎屑岩系有关铅锌矿床成矿系列和与碰撞造山韧性剪切带有关的金镍铬矿床成矿系列等二十个矿床成矿系列,主攻矿种为锌、铅、铜、银、金和锑,发育有斑岩型、沉积-改造型和MVT型等多种矿床类型。兰坪金顶超大型铅锌矿床和鹤庆北衙超大型金矿床是西南三江成矿带多期多类型叠加成矿的典型矿床,本文简要介绍了其矿床地质特征。根据全国矿产资源潜力评价项目最新成果,本文按预测深度汇总了西南三江成矿带锌、铅和铜等20种矿产的预测资源量,划分了青海多彩地区铜多金属、西藏夏日多—多霞松多铜钼、云南兰坪—云龙铅锌铜和云南鹤庆—祥云金多金属等24个成矿远景区,初步总结了其中13个重点远景区的主攻矿种、主攻矿床类型和资源潜力。     

中国矽卡岩矿床找矿新进展和时空分布规律

近年来,中国矽卡岩矿床找矿取得了很大的新进展:西藏冈底斯成矿带和班公湖-怒江成矿带发现和探明了十余个大中型矽卡岩铜、金多金属矿床;在青海西部祁漫塔格成矿带发现和探明了不少铁多金属矽卡岩矿床;在东部地区发现和探明了一批大型隐伏的矽卡岩矿床,如河北白涧铁矿床、江西朱溪钨多金属矿床、湖南锡田锡钨矿床、福建上房钨矿床等。在新疆西天山发现和探明了一批大(中)型与火山-侵入活动有关的矽卡岩铁矿床。另外,在新疆发现白干湖、沙沟等大型钨矿床,在甘肃也发现和探明了大型钨矿床。学者们对上述矿床进行了较详细的研究。中国主要矽卡岩矿床最新同位素测年资料表明,矽卡岩矿床的生成时代从元古宙、古生代、中生代到新生代都有,但最重要的成岩成矿期是中生代的燕山期。在空间分布上,赵一鸣等(1990)曾划分出14个重要的矽卡岩成矿带,通过广大地质工作者的努力,在西藏、新疆和青海等省(区)找矿工作的重大进展,又新增4个矽卡岩成矿带,即西藏冈底斯成矿带、班公湖-怒江成矿带、青海祁漫塔格成矿带和新疆西天山成矿带。     

内蒙古阿巴嘎旗莫若格钦铅锌矿区地质、物化探特征及找矿前景分析

内蒙古阿巴嘎旗莫若格钦铅锌矿区综合应用地质、物化探手段进行找矿,取得了良好的效果,已圈定五条矿化蚀变带,发现四条(银)铅锌矿化体、一条(银)铜矿化体,具有较大的找矿潜力.文章对该区的成矿地质背景,地质、物化探异常特征进行研究,分析了该区的找矿前景,对下一步开展地质找矿具有重要的指导意义.     

Geological characteristics,metallogenic regularities and the exploration of graphite deposits in China

The demand for graphite resources has been increasing due to its extensive use. Graphite deposits in China are mainly distributed in Heilongjiang, Innner Mogolia, Sichuan, Shanxi and Shandong, characterized by “one old & one new” and “many in east & few in west”. There are mainly three genetic types, including regional metamorphic type, contact metamorphic type and hydrothermal type. Here we provide a summary of the metallogenic regularity and 15 metallogenic belts in China based on the study of the geology of national graphite deposits. In recent years, great progress has been made in the research of genesis, mineral exploration and evaluation on graphite deposits, which indicate great potential for graphite resource in China. The authors suggest that the research on geochronology, ore sources, the genesis of crystalline graphite and exploration for hydrothermal graphite in China should be heightened.     

多源遥感信息在喀喇昆仑火烧云一带找矿预测中的应用

本文采用多源遥感数据,开展新疆喀喇昆仑萨岔口-火烧云一带铅锌矿找矿预测工作。在对研究区典型矿床不同岩、矿石光谱特征测量的基础上,总结分析其光谱特征。赋矿灰岩具有强CO_3~(2-)吸收峰、弱Al-OH吸收峰,铅锌矿化体具有CO_3~(2-)吸收峰、Fe~(3+)吸收峰和Al-OH吸收峰。利用比值分析、密度分割和多特征匹配滤波等方法对ASTER数据有针对性地提取方解石、铁染、Al-OH遥感异常信息,异常呈北西向带状展布与区域地质体展布相吻合。本文以火烧云铅锌矿区为例,建立了区域铅锌矿床以"强方解石、弱Al-OH异常,伴有铁染异常"为特征的遥感找矿标志。结合Worldview-2高分辨率遥感影像特征及构造解译,以及成矿信息综合分析的基础上,对研究区内遥感异常信息进行筛选。利用相似类比理论,圈定五处找矿有利部位。结合异常查证,显示萨岔口、马鞍山、牛郎山、歪头山、金鱼山具有较好的铅锌矿找矿前景。利用多源遥感信息有助于推动喀喇昆仑这类高寒景观区的铅锌找矿工作。     

Ore-bearing Formations and Mineral Resource Prospects of the Peripheral Areas of the Tarim Block

The tectonic development of the Tarim block has experienced four stages, i. e. Earth's core accretion and block formation in the Precambrian, margin splitting, opening-closing and piecing up in the Early Palaeozoic, rift formation and plate unification in the Late Palaeozoic, and basin-mountain coupling and landform shaping in the Meso-Cenozoic, forming six ore-bearing formations and ore deposits of various genetic types in the Tianshan Mountains, Kunlun Mountains and Altun Mountains. In the peripheral areas of Tarim there are four giant intercontinental metallogenic belts passing through, the Central Tianshan and southwestern Tianshan belts in the former USSR and the Qinling-Qilian-Kunlun and Palaeo-Tethys belts in China. According to the macro-analysis on the nearly one thousand known deposits (occurrences) and geophysical-geochemical anomalies, and the information from reconnaissance in some areas, the region has very good prospects for mineral resources. Some of the metallogenic belts may well becom     

Analysis of prospecting polymetallic metallogenic belts by comprehensive geophysical method

This paper is based on the analysis and research on the silver-lead-zinc polymetallic ore in New Ballyhoo Banner in southern Manzhouli of Inner Mongolia.Because metal mineralization brings rock formations,the geophysical features such as low resistivity,high polarization rate and uneven distribution of magnetization,the comprehensive geophysical methods are adopted including high-precision magnetic measurement,high-power induced polarization,IP field middle gradient and controlled source audio-frequency magnetotellurics.In the survey work of multi-metal ore deposits,from surface sweeping to single point measurement,and from single point to section going deeper layer by layer,the resolution of measurement is continuously improved,and various geophysical methods support and complement each other,so explorers can successfully predict the direction,scale and volume of the metallogenic belts in conjunction with geochemical exploration,geological survey and drilling.It has provided a strong basis for completing the exploration task of predicting the reserve volume of ore bodies.The research conclusions of this exploration case have thus a high reference value in the same type of exploration work.     

Analysis of prospecting polymetallic metallogenic belts by comprehensive geophysical method

This paper is based on the analysis and research on the silver-lead-zinc polymetallic ore in New Ballyhoo Banner in southern Manzhouli of Inner Mongolia. Because metal mineralization brings rock formations,the geophysical features such as low resistivity, high polarization rate and uneven distribution of magnetization, the comprehensive geophysical methods are adopted including high-precision magnetic measurement, high-power induced polarization, IP field middle gradient and controlled source audio-frequency magnetotellurics. In the survey work of multi-metal ore deposits, from surface sweeping to single point measurement, and from single point to section going deeper layer by layer, the resolution of measurement is continuously improved, and various geophysical methods support and complement each other, so explorers can successfully predict the direction, scale and volume of the metallogenic belts in conjunction with geochemical exploration, geological survey and drilling. It has provided a strong basis for completing the exploration task of predicting the reserve volume of ore bodies. The research conclusions of this exploration case have thus a high reference value in the same type of exploration work.     

Deep Structure and Metallogenic Processes of the Altai‐Junggar‐Tianshan Collage in Southern Altaids

The Altai-Junggar-Tianshan collage in southern Altaids is an important metallogenic domain in Central Asia that contain world-class copper-iron-nickel deposits. As an accretionary-type metallogenic system, the metallogenic processes of the Altai-Junggar-Tianshan collage is essential in understanding the genetic mechanism of ore deposits in general. Here in this paper we present a brief introduction to the project on the western part of the Southern Altaids, entitled “The deep structure and metallegenic processes of the North China accretionary metallogenic systems”.This project mainly focuses on the deep structure and metallogenic background of the Altai-Junggar-Tianshan collage by integrated studies from field geology, structural mapping, geochemistry and geophysical exploration. Multiple new geological and geophysical methods will be applied to make transparency of the Kalatongke and Kalatage ore clusters. This will update our understanding of the geodynamic processes of metallogenesis and lead to the development and foundation of new metallogenic theories in accretionary orogens.     

中国大陆周边地区主要成矿带成矿规律对比及潜力评价研究进展

概述中国大陆周边地区主要成矿带成矿规律对比及潜力评价研究进展,分析中国周边国家和相关地区的矿产资源潜力与成矿地质条件。在中国周边跨境成矿带境内外成矿作用、成矿地质背景与成矿规律对比研究的基础上,编制了跨境基础地质和成矿规律系列图件,深化了对跨境成矿带地质特征和成矿规律的认识及重点区域的资源潜力分析,并圈定了找矿的战略远景区,为中国与周边国家跨境重要成矿带矿产资源勘查提供基础地质和区域成矿理论指导。     

东天山晚古生代内生金属矿床类型和成矿作用的动力学演化规律

新疆东天山是我国重要的矿产集中区之一,并且具有良好的进一步找矿潜力。本文在对东天山成矿地质背景和古生代大量内生金属矿床系统分析的基础之上,划分出7种内生金属矿床的主要成矿类型,阐明了该区晚古生代地壳经历了拉张、挤压、碰撞、碰撞后弛张、剪切走滑和局部伸展的发展阶段,金、铜等内生金属矿床属于不同地球动力学背景下的产物。