|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 胶东和小秦岭:两类不同构造环境中的造山型金矿省显示文摘胶东和小秦岭是我国排名前两位的金矿产地,根据对这两个地区的实地野外考察、室内研究及对已有大量研究成果的总结,我们认为胶东与小秦岭地区的金矿床均可归入造山型金矿的范畴,它们分别形成于增生型造山体制和碰撞型造山体制。胶东金矿床形成于早白垩世(130~120Ma左右)与洋壳俯冲(增生)造山相关的活动大陆边缘环境,矿床主要产于中生代花岗岩岩体中,严格受断裂带(NNE向或NE向为主)控制,成矿流体具有低盐度高CO_2含量的特征,He-Ar同位素研究显示成矿过程有幔源物质的加入。综合金矿床及中生代岩浆岩(特别是与成矿近同时的早白垩世郭家岭花岗岩及基性岩脉)的地质地球化学特征与成岩成矿动力学,我们提出在俯冲的太平洋板块后退的背景下,胶东地区增厚地壳中的榴辉岩相下地壳及下伏岩石圈地幔发生两阶段拆沉,强烈的壳幔相互作用最终导致了早白垩世普遍的岩浆活动及金的爆发成矿的模式。小秦岭地区金矿床主要以大型含金石英脉的形式产出于太华群变质基底的脆性-韧性剪切带(EW向为主)中,而与区域内燕山期大型花岗岩岩基没有直接联系,矿床地质特征(如低盐度高CO_2,以变质流体为主的成矿热液)与造山型金矿吻合,He-Ar同位素特征表明金矿床形成时有幔源物质的加入。小秦岭地区脉状Au-Mo矿床印支期成矿年龄(215~256Ma,辉钼矿Re-Os)表明印支期是小秦岭地区金成矿的主要时期,小秦岭金矿属于陆陆(华北与扬子)碰撞造山过程中形成的造山型金矿。 | 蒋少涌 戴宝章 姜耀辉 赵海香 侯明兰 | 2009 | 岩石学报2009，25，11： | 101 |
| 2 | 中国东北钼矿床地质显示文摘中国东北地区是中亚造山带和环太平洋构造带叠加的区域,成矿作用复杂而强烈。系统总结了东北地区的钼矿床勘查和研究进展,形成如下主要认识:1)研究区已发现3个超大型、18个大型等70余处钼矿床,探明资源量仅次于东秦岭钼矿带;2)矿床成因类型主要为斑岩型(含爆破角砾岩型)、矽卡岩型,次为热液脉型;3)成矿岩浆岩多为高硅富钾钙碱性的I型花岗岩,岩浆活动具有多期多阶段性;4)钼矿床集中分布在华北克拉通北缘、南大兴安岭、北大兴安岭和吉黑褶皱带等4个地区;5)与岩浆活动的多期多阶段性相一致,钼矿化具有多期多阶段性,但中生代最为重要,并集中在250~210、190~160和150~110 Ma等3个高峰期;6)钼矿床的辉钼矿Re含量变化较大,总体较低,显示成矿物质来源复杂,但以壳源为主;7)成矿时代越老,辉钼矿Re含量越高,Cu/Mo储量比越大;8)钼矿床主要形成于增生造山和大陆碰撞造山(含后碰撞)两种构造背景,单钼矿床始现于三叠纪,只形成于大陆碰撞造山体制。 | 陈衍景 张成 李诺 杨永飞 邓轲 | 2012 | 吉林大学学报(地球科学版)2012，42，5： | 127 |
| 3 | Sr and O isotopic characteristics of porphyries in the Qinling molybdenum deposit belt and their implication to genetic mechanism and type显示文摘A great deal of Mesozoic hypobatholithic granites and hypabyssal porphyries develop in the Qinling Mountains. The former has long been regarded as transformation type (or S-type), and the latter associated with Mo-mineralization regarded as syntexis type (or l-type) granitoids. Statistics show that Sr, andδ18O of hypabyssal porphyries respectively range from 0.705 to 0.714, and from 7.2‰ to 12.1‰, agreeing with those of hypobatholithes (Sr1=0.705-0.710, δ18O = 6.1‰-10.4‰), which indicates that they share similar material sources and petrogenic mechanism. Based on analysis of lithological, mineralogical and geochemical characteristics of these granitoids and on study of their petrogenic tectonic background and regional geophysical data, we argue that both the shallow-seated porphyries and deep-seated batholithes were the products of Mesozoic collision between South China and North China paleocontinents. Subsequently, all these granti-toids should be attributed to collision type. | 陈衍景 李超 张静 李震 王海华 | 2000 | Science China Earth Sciences2000，43，S1： | 70 |
| 4 | 大陆碰撞成矿理论的创建及应用显示文摘本文阐明了大陆碰撞成矿理论的重要性,将大陆碰撞成矿理论的发展史划分为1970年以前的预备期,1971~1990年的孕育期,1991~2000年的诞生期,2001~2010年的成长期和2011年以后的成熟期;指出大陆碰撞成矿理论的核心内容是4个不同尺度(全球构造、造山带、地体、矿床)的碰撞造山流体成矿模式(CMF模式)和4种类型成矿系统的特征及其与其它环境同类成矿系统的对比;介绍了运用大陆碰撞成矿理论指导找矿预测的成功范例。事实证明,中国学者发挥中国碰撞造山带丰富的自然优势,为发展大陆碰撞成矿理论做出了重大贡献。 | 陈衍景 | 2013 | 岩石学报2013，29，1： | 54 |
| 5 | Geology and D-O-C Isotope Systematics of the Tieluping Silver Deposit,Henan, China: Implications for Ore Genesis显示文摘The Tieluping silver deposit, which is sited along NE-trending faults within the high-grade metamorphic basement of the Xiong’er terrane, is part of an important Mesozoic orogenic-type Ag-Pb and Au belt recently discovered. Ore formation includes three stages: Early (E), Middle (M) and Late (L), which include quartz-pyrite (E), polymetallic sulfides (M) and carbonates (L), respectively. The E-stage fluids are characterized by δD=-90‰, and δ 18 O=9‰ at 373°C, and are deeply sourced; the L-stage fluids, with δD=-70‰, and δ 18 O=-2‰, are shallow-sourced meteoric water; whereas the M-stage fluids, with δD=-109‰, and δ 18 O=2‰, are a mix of deep-sourced and shallow-sourced fluids. Comparisons of the D-O-C isotopic systematics of the E- stage ore-forming fluids with the fluids derived from Mesozoic granites, Archean-Paleoproterozoic metamorphic basement and Paleo-Mesoproterozoic Xiong’er Group, show that these units cannot generate fluids with the measured isotopic composition (highδ 18 O and δ 13 C ratios and lowδD ratios) characteristic of the ore-forming fluids. This suggests that the E-stage ore-forming fluids originated from metamorphic devolatilization of a carbonate-shale-chert lithological association, locally rich in organic matter, which could correspond to the Meso-Neoproterozoic Guandaokou and Luanchuan Groups, rather than to geologic units in the Xiong’er terrane, the lower crust and the mantle. This supports the view that the rocks of the Guandaokou and Luanchuan Groups south of the Machaoying fault might be the favorable sources. A tectonic model that combines collisional orogeny, metallogeny and hydrothermal fluid flow is proposed to explain the formation of the Tieluping silver deposit. During the Mesozoic collision between the South and North China paleocontinents, a crustal slab containing a lithological association consisting of carbonate-shale-chert, locally rich in organic matter (carbonaceous shale) was thrust northwards beneath the Xiong’er terrane along the Machaoying fault. Metamorphic devolatilization of this underthrust slab provided the ore-forming fluids to develop the Au-Ag-(Pb-Zn) ore belt, which includes the Tieluping silver deposit. | CHENYanjing FrancoPIRAJNO SUIYinghui | 2005 | Acta Geologica Sinica(English Edition)2005，79，1： | 44 |
| 6 | 中国区域成矿研究的若干问题及其与陆-陆碰撞的关系显示文摘在中国区域成矿作用研究中 ,遇到诸多重大问题 ,如 :(1)中国东部属于环太平洋地区之一 ,但为什么热液矿床大规模成矿时代不同于环太平洋的新生代 ,而爆发于中生代的燕山期 ?(2 )中国陆区经历了 >3.0Ga的演化 ,为什么大规模成矿作用在东部地区爆发于燕山期 ,西南特提斯成矿域爆发于新生代 ,而西北中亚成矿域爆发于海西期晚期 ?(3)国外不少著名成矿省位于太古宙克拉通内部 ,为什么中国的有色贵金属等热液矿床却集中分布于显生宙造山带内部或其边缘 ?(4)按照绿岩带金矿成矿理论 ,绿岩带型金矿化伴随或尾随于克拉通化 ,形成在太古宙 ,为什么中国绿岩带型金矿却形成在克拉通化后的 2 0多亿年以后的中生代 ?(5 )世界范围内 ,海相油田的重要性远大于陆相 ,为什么中国情况恰相反 ,陆相油田远比海相油藏重要 ?……。笔者认为这些问题彼此相关 ,代表了中国区域成矿的特色 ,其根本原因在于中国陆区不同构造单元经历了晚古生代以来的强烈碰撞事件 ,因此加强研究碰撞造山体制的成岩、成矿、成藏和流体作用是解决这些问题的关键途径。 | 陈衍景 | 2002 | 地学前缘2002，9，4： | 44 |
| 7 | 秦岭造山带西段八方山-二里河地区硅质岩的地球化学特征及其地质意义显示文摘陕西省凤县-太白(凤太)地区位于秦岭造山带的西段,是我国重要的金属成矿集中区之一。本文重点分析凤太地区中泥盆统古道岭组与上泥盆统星红铺组过渡部位的沉积成因硅质岩。它是八方山-二里河铅锌矿床的主要赋矿层位。硅质岩多为灰黑色,块状、层纹状、角砾状构造,致密坚硬,经受过轻微变质作用(主要是重结晶作用),主要组成矿物为细晶、微晶石英,含有少量的铁白云石、方解石、绢云母、炭质。根据地球化学分析,八方山-二里河地区沉积成因硅质岩的SiO_2含量均大于80%,最高者可达95.3%,TiO_2和Al_2O_3明显偏低,高FeO,Al/(A1+Fe+Mn)值落在0.13~0.64之间。大部分微量元素含量远小于地壳元素丰度,但Ba、As、Sb、B、Ag、Hg含量较高。在V/Y-Ti/V和Ti-V图解中,硅质岩样品投影在洋中脊→大陆边缘的洋盆位置,大部分落在远洋区域,部分靠近大陆边缘。样品稀土元素含量较低,∑REE仅为3.28×10^(-6)~20.66×10^(-6),经北美页岩标准化后的稀土元素配分曲线可以分为H和S两组。H组曲线左倾,富集重稀土(HREE),具有明显的热水成因特征。S组与H组稍有差异,是受非热水沉积作用影响所致。(La/Lu)_N介于0.36~1.99,多分布于0.36~0.70和1.00~1.99两个区间内,分别代表与洋中脊环境相似的的洋盆喷口或断裂附近环境和受一定陆源物质影响的远洋盆地或深海平原环境。(La/Yb)_N值介于0.32~2.21,多分布0.32~0.72和1.74~2.21两个区间内,地质意义与(La/Lu)_N类似。硅质岩样品的(La/Ce)_N值在1.04~3.28,多数大于1,平均为1.62,主要反映大洋盆地(或深海平原)环境,个别样品也表现出大陆边缘沉积特征。研究结果表明,尽管经历了后期成岩作用等,但硅质岩仍整体上较好地保持了初始沉积时的地球化学特征。 | 李红中 周永章 杨志军 古志宏 吕文超 何俊国 李文 安燕飞 | 2009 | 岩石学报2009，25，11： | 28 |
| 8 | 小秦岭东闯金矿成矿作用的^(40)Ar-^(39)Ar年代学研究显示文摘小秦岭地区的东闯金矿是中国的超大型金矿床之一,被认为是典型的造山带型金矿床,但其成矿时间有争议。矿床地质特征研究表明,成矿作用可分为粗粒黄铁矿—石英、细粒黄铁矿—石英、多金属硫化物、碳酸盐—石英四个阶段。笔者分别于两个实验室测定了第Ⅰ、Ⅲ和Ⅱ阶段的氩氩年龄,测定结果表明,Ⅰ阶段石英氩氩坪年龄为142.9±2.9Ma;Ⅱ阶段绢云母氩氩坪年龄为132.2±2.6Ma,等时线年龄为132.6±2.7Ma;Ⅲ阶段石英氩氩坪年龄为128.3±6.2Ma,与地质实际吻合并可相互印证。本文结果表明成矿作用发生在143~128 Ma,侏罗纪—白垩纪之交的挤压—伸展转变期,显示挤压伸展转变期的减压增温环境是造山带型矿床最为有利的成矿地球动力学背景。 | 李强之 陈衍景 钟增球 李文良 李绍儒 郭晓东 金宝义 | 2002 | 地质论评2002，48，S1： | 16 |
| 9 | Metallogenesis of the Ertix gold belt, Xinjiang and its relationship to Central Asia-type orogenesis显示文摘The Ertix gold belt is located on the boundary of the Kalatongkearc and the Kelan back-arc basin of D-C1. Most scholars used to interpret the formation and distribution of the gold deposits in the Ertix tectonic belt in terms of the petrogenic and metallogenic models for active continental margins. However, enormous data of isotopic dating and geologic research show that the mineralization was obviously later than the oceanic subduction, whereas exactly simultaneous with the collisional orogenesis during C2-P, especially at the transition stage from collisional compression to extension. Based on study of metallogenic time, tectonic background, ore geology, ore fluid nature, ore material source, etc., we reveal that all the gold deposits possess the character of orogenic deposits formed in collisional orogenic system, and that their ore-forming materials mainly have derived from the stratigraphic terranes south to individual deposits. Accordingly, the theoretical tectonic model for collisional metallogenesis and petrogenesis is employed to explain the formation of the Ertix gold belt and to determine the gold exploration directions. | 陈华勇 陈华勇 陈衍景 | 2001 | Science China Earth Sciences2001，44，3： | 13 |
| 10 | Isotopic indication to source of ore materials and fluids of the Wangfeng gold deposit in Tianshan: A case study of metallogenesis during collisional orogenesis显示文摘The Wangfeng gold deposit is one of the five most important gold deposits in the Tian-shan. Studies of its metallogenic time, space, geodynamic background, ore feature and ore fluid have proved that the deposit formed in the late Paleozoic continental collision, and consequently is a suitable delegate to probe mineralizing regularities during collisiona! orogenesis. Isotopic studies including O, D, C, S, Pb and Sr reveal ore materials derived from sedimentary association (including carbonate and sulfate), which further refers to the Hercynian carbonate-silicolite-argillite formation north to Wangfeng camp. At the end of Paleozoic, the southward intracontinental subduction of Hercynian synthem along the Hongwuyueqiao fault down to the Central Tianshan terrane induced large-scale fluidization which extracted and out-transported ore materials from Hercynian synthem upto shallow fair positions, and finally resulted in the formation of the Wangfeng deposit. This study excludes the possibility of other | 陈华勇 鲍景新 张增杰 刘玉琳 倪培 凌洪飞 | 2000 | Science China Earth Sciences2000，43，S1： | 11 |
| 11 | Ore fluid of the Tieluping silver deposit of Henan Province and its illustration of the tectonic model for collisional petrogenesis, metallogenesis and fluidization显示文摘The Tieluping silver deposit, located in the NE-trending faults within the metamorphic basement of the Xiong’er Mountain, is a typical altered fracture type deposit. Its ore-forming process includes three stages with temperatures concentrated at 373℃, 223℃ and 165℃ respectively. With δD=90‰, δ13CCo2 =2.0‰ and δ18O=8.94‰, the early stage fluid was generated from reworking and metamorphism of the carbonate rich formation; the late one, with δD=-70‰, δ13CCo2 =-1.2‰, δ18O=-1,89‰, was meteoric hydrothermal solution; and the middle, δD=-109‰, δl3CCO2=0.1‰, δ18O=1.79‰, might be a hybrid mixed by reworking-metamorphic fluid and meteoric hydrothermal solution. Crystallized rapidly in the condition of fluid-boiling and fluid-mixing, the middle stage minerals have far more fluid inclusions with higher content of ions, higher ratios of H2O/CO2 and KN/MC. Consequently, they have much more ore elements such as gold compared with those of the early and late stages. It was the northward | 隋颖慧 王海华 高秀丽 陈华勇 李震 | 2000 | Science China Earth Sciences2000，43，S1： | 10 |
| 12 | Copper-Polymetal Metallogenic Series and Prospecting Perspective of Eastern Section of Gangdise显示文摘Geological, geophysical, geochemical and remote sensing comprehensive studies show that big ore-prospecting potentiality is contained in the eastern section of the Gangdise Mountains, Tibet. There are various mineralization types with dominant types of porphyry and exhalation. According to their relations with tectonic evolution, they are divided into four kinds of metallogenic series as follows: magmatic type (Cr, Pt, Cu, Ni) and exhalation type (Cu, Pb, Zn, Ag) ore deposit series related to Neo-Tethys oceanic crust subduction action (125-96 Ma); epithermal type (Au, Ag, Pb, Zn, Sb), altered fractured rock type (Cu, Mo) and skarn rock type (Cu) ore deposit series related to arc-continental collision; porphyry type (Cu, Mo), cryptoexplosion breccia type (Cu, Au, Pb, Zn), shear zone type (Au, Ag, Sb) and skarn rock type (Cu, Fe) ore deposit series with relation to post-orogenic extensional strike-slip. From subductive complex to the north, zoning appears to be crystallization differentiation type (segregation type)-shear zone type (altered rock type)-skarn rock type, epithermal type-porphyry type-porphyry type and exhalation type-exhalation type-hydrothermal filling-replacement type. The ore deposit is characterized by multi-places from the same source, parity and multi-stage, hypabyssal rock from the deep source and poly genetic compound as a whole. | ZhengYouye XueYingxi GaoShunbao | 2003 | Journal of China University of Geosciences2003，14，4： | 1 |
| 13 | 太空菜豆1号显示文摘 | | 2006 | 农业工程技术(绿色食品)2006，，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员