小兴安岭石林公园钼(钨)成矿作用及地球化学特征
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摘要
我国依据构造—岩浆作用、岩石类型、钼矿成矿作用及其元素组合特征,可划分6个成矿区(带),其中黑龙江-吉林成矿区是其中主要的成矿带,主要为矽卡岩型和斑岩型铜-钼矿及钼多金属矿床,近几年来在该成矿带相继发现了多宝山、翠宏山、鹿鸣、大黑山和霍吉河等多处大中型钼矿床。其中鹿鸣、霍吉河和石林公园南山钼矿(点)位于小兴安岭东北部地区,小兴安岭-张广才岭多金属成矿带北端,是新近发现的钼矿床,目前正处在矿产详查和矿山建设阶段。前人在该地区开展的多为基础性研究(大中比例尺的区调、矿调)或矿产勘查等生产性研究,钼矿成矿理论和成矿规律研究很薄弱,如成因方面,大多认为是斑岩型矿床,但根据野外观测,在霍吉河钼矿床和石林公园南山钨钼矿点都发现了石英大脉型矿化,具有热液脉型成矿的特点;在成矿时代研究方面,主要是赋矿围岩的成岩时代的研究,缺少直接的矿石矿物年代研究成果;在控矿机制方面,前人也没有进行详细的探讨。
     本文拟通过对霍吉河、鹿鸣钼矿床和石林公园南山钨钼矿点在成矿大地构造背景环境、矿床与地层、岩浆岩、构造之间的关系以及矿床地球化学等方面的研究,探讨矿床成因机制和区域分布规律,为进一步的成矿理论研究和指导区域性的找矿工作奠定基础。
The study area is loacted in the north of polymetallic ore belt of Xiaoxing'anling– Zhangguangcailing in northeast of Xiaoxing'anling area . China is devided into six mining areas (belts) by tectonic– magmatic and rock types and molybdenum mineralization with it’s element association. Heilongjiang– Jilin metallogenic area is one of the most important metallogenic belts. And the main types of deposits are skarn,porphyry copper - molybdenum ore, molybdenum-polymetallic etc. i.e. Duobaoshan, Cui Hong Hill,Luming and Huoji river, etc. At present, the researchs for metallogenic theories and mineralization rules are very weak and many of them are production and basic researchs. At the metallogenic epoch aspect, the study for the the epoch of ore-hosted rock is the Main part without any direct results for the age of ore and minera. As to the types of causes, most experts considered that the deposit of Huoji river and Luming are types of porphyry. But according to the observations outside, large quartz vein-type mineralization whose feature is Hydrothermal vein-type had been discovered in the molybdenum deposit of huoji river and the wolfram -molybdenum ore spots in south mountain of stone forest park.
     The tectonic setting of the wolfram -molybdenum ore spots .i.e. tectonic environment and exposed strata of mining and Magmatic rocks and tectonic are similar with large molybdenum mine of Huoji river and molybdenum Copper mine of Luming. So contrast with molybdenum mine of Huoji river and molybdenum Copper s mine of Luming, the result has important significances for further exploration in the wolfram -molybdenum ore spots in south mountain of stone forest park
     The main study object of this paper is the wolfram -molybdenum ore in south mountain of stone forest park, and made a comparative study on large molybdenum mine of Huoji river and medium-sized molybdenum mine of Luming. Then we probe mineralization and geochemistry of the wolfram -molybdenum ore spots in south mountain of stone forest park. And it is Investigated about wolfram -molybdenum mineralization and geochemistry in xinqing district in Xiaoxing'an area.
     The main results and understanding by the researchs of regional geological setting and regional geochemical characteristics and deposit geological features and the characteristics of fluid inclusions and deposit genesis and the comparative chronology ,are as follows:
     ①Molybdenum mineralization is closely related with the acidic intrusive rocks. The study results show that the ore-hosted rock of the minings in Huoji river and Luming is the biotite monzogranite, and wolfram -molybdenum ore spot in south mountain of stone forest park it is alkali feldspar granite. The all of the ore-hosted rocks were silicification, potassic, phyllic and molybdenite mineralization strongly. The main ore mineral assemblages are: molybdenite, pyrite and chalcopyrite
     ②The REE curve of the ore-bearing rock is a generally right-wing type one. The curve of HREE is relatively flat or slightly left-leaning like asymmetry "Seagull"-type. On the REE the element Eu deficit heavyly. In spider, the curve is right-wing type one. The HFSE are more enrichment, and LILE like Rb、Ce are enrichment but K、Ba、P and Ti are relatively more losses. From the trace element spider diagrams we can know that the curves of the three mines are the same modles totally. And the result showed that their ore-hosted rock should have the same diagenetic environment.
     ③The research about fluid inclusions in quartz showed that ore-forming fluids more uniform system of H2O-NaCl salt solution without CO2. Before mineralization, the fluid with the feature of high temperature and high salinity represents the characteristics of the early evolution of magmatic hydrothermal. During the mineralization, the type of fluid is mid-low temperature and mid-low salinity one. And the general characteristics of them is that high temperature-high salinity mixed with low temperature -low-salinity fluid.
     ④The test result about the single zircon age of ore-hosted rock of molybdenum deposit by the way of LA-ICP-MS showed that the diagenetic age of it is between 179.5±1.1Ma~207±3.1Ma. the test result on isotope Re-Os of the sample of the molybdenite ore minerals showed that the diagenetic age of it is 208.9±3.2Ma. according to the results, we can know that diagenesis and mineralization occurred in the Late Triassic - Early Jurassic.
     ⑤The molybdenum deposit-forming materials are mainly coming from the magmatic fluid which formed by ore-hosted rocks. and the main source of water is magmatic water with part of the ground water and rainwater. The high temperature and high salinitymagmatic fluid takeing along mineralization migrated upword along regional faults and micro-cracks in rock driven by tectonic stress and temperature gradient. Meanwhile, the groundwater and rainwater which infiltrated along the tectonic fracture is heated up. The rock-forming materials in the ore-hosted was leached and extracted and then the low temperature -low salinity fluid enrichmented minerals such as Mo was formed. two ore-forming fluids were mixed in the shallow crust.and because the temperature and pressure get low and physical and chemical conditions had changed, the ore-forming fluids precipitated enrich in the fractures and micro-cracks in the rock. Then the quartz vein and micro-disseminated mineralization were formed. And all of above reasons lead to the mineralization of mixed ore with the features of hydrothermal veins type and porphyry type.
引文
[1]时永明,崔彬,贾维林.黑龙江省铁力市鹿鸣钼矿床地质特征[J].地质与勘探,2007,43(2)
    [2]侯增谦,曲晓明,王淑贤,高永丰,杜安道,黄卫.西藏冈底斯斑岩铜矿带辉钼矿Re-Os年龄:成矿作用时限与动力学背景应用,中国科学(D辑),2003,33(7):609-618
    [3]尹冰川,冉清昌.小兴安岭-张广才岭地区区域成矿演化[J].矿床地质,1997,16(3):237-242
    [4]曹殿华,王安建,管烨,陈江.基于模糊逻辑的中甸岛弧斑岩型铜矿定位预测[J].矿床地质,2006,25 (2):199-206
    [5]葛文春,吴福元等.兴蒙造山带东段斑岩型Cu,Mo矿床成矿时代及其地球动力学意义[J].科学通报,2007,52(20):2407-2417
    [6]侯增谦,曲晓明等.青藏高原碰撞造山带:Ⅲ.后碰撞伸展成矿作用[J].矿床地质,2006,25(6):629-651
    [7]侯敏,杜恒芳.小兴安岭南段-张广才岭成矿带主要金属矿床成矿系列的划分及区域成矿规律[J].黑龙江地质,1998,9(3):10-16
    [8]韩振新,赫正平,等.黑龙江省主要成矿带矿床成矿系列[M].哈尔滨工程大学出版社,1996
    [9]韩振新,郝政平,侯敏.小兴安岭地区与加里东期花岗岩类有关的矿床成矿系列[J].矿床地质,1995,14(4):293-302
    [10]刘宝山.马永强.吕军等.伊春地区上游新村晚三叠世二长花岗岩体成因及就位机制[J].地质与资源,2005,14(3)170-175
    [11]林强,葛文春,孙德有等.东北地区中生代火山岩的大地构造意义.地质科学,1998,33(2):129-139
    [12]黑龙江省第五勘查院.黑龙江省铁力市鹿鸣钼矿预查报告,2005
    [13]黑龙江省地调总院齐分院,黑龙江省铁力市翠岭地区铜钼多金属矿普查总结,2007
    [14]黑龙江省地调总院,额尔古纳—兴安岭和小兴安岭—老爷岭成矿带研究,2001
    [15]卢焕章,范宏瑞,倪培,等.流体包裹体[M].科学出版社,2004
    [16]邱殿明.黑龙江省东部岩石圈演化特征.吉林大学博士论文.2005
    [17]隋振民,葛文春,吴福元,等.大兴安岭东北部侏罗纪花岗质岩石的锆石U-Pb年龄、地球化学特征及成因[J].岩石学报,2007,23(2):461-480
    [18]孙德有,吴福元,高山.小兴安岭东部清水岩体的锆石激光.U-Pb年龄测定[J].地球学报,2004,25(2):213-218
    [19]孙加鹏,张兴洲,杨宝俊.张广才岭岩石圈结构及盆岭构造[J].长春科技大学学报,1999.29(1):25-28
    [20]隋振民.大兴安岭东北部花岗岩类锆石U-Pb年龄、岩石成因及地壳演化[D].吉林大学博士论文,2007
    [21]孙德有.张广才岭中生代花岗岩成因及其地球动力学意义[D].吉林大学博士学位论文,2001
    [22]时永明.崔彬.贾维林.黑龙江省铁力市鹿鸣钼矿床地质特征[J].地质与勘探,2007,43(2)20-22
    [23]李红艳,毛景文,孙亚利,杜安道.柿竹园钨多金属矿床的Re-0s同位素等时线年龄研究.地质评论,1996,42(3)261-267
    [24]李健康,李文昌,王登红,卢映祥,中甸弧燕山晚期成矿事件的Re-Os定年及成矿规律研究,岩石学报,2007,023,2415-2422
    [25]王中刚,于学元,赵振华等.稀土元素地球化学[M].北京:科学出版社,1989,223-224
    [26]吴福元,李献华等.花岗岩成因研究的若干问题[J].岩石学报,2007,23(6):1217-1238
    [27]尹冰川,冉清昌.小兴安岭张广才岭地区区域成矿演化[J].矿床地质,1997,16(3):237-242
    [28]赵明玉.张广才岭成矿带铁力-玉泉有色金属、贵金属矿带成矿特征分析[J].矿产与地质,2000.1(78):225-229
    [29]黑龙江省地勘局,省地调总院齐分院.1:25万嘉荫幅等区域地质调查报告,2006
    [30]黑龙江省地勘局,省地调总院齐分院.2006,1:25万鹤岗幅等区域地质调查报告,2006
    [31]黑龙江省地质局,第一区调所.1:5万神树镇幅区域地质调查报告,2000
    [32]辽宁省地矿局.1:5万哈达木孜大坂幅等区域地质矿产调查报告,2005
    [33]邱家骧,林景仟.岩石化学.地质出版社
    [34] Walsh J F,Kesler S E.Fluid inclusion geochemistry of high grage,vein hosted gold ore at the pamore Mine,poreupine Camp,Ontario[J].Econ.Geol.1988,83:1347-1367
    [35]丰成友,李东生,屈文俊,杜安道,苏生.青海祁漫塔格索拉吉尔矽卡岩型铜钼矿床辉钼矿铼-锇同位素定年及其地质意义, 2009,28(3)223-227
    [36]唐菊兴,王成辉,屈文俊,杜安道,应立娟,高一鸣.西藏玉龙斑岩铜钼矿辉钼矿铼-锇同位素定年及其成矿学意义,岩矿测试,2009
    [37]李超,屈文俊,杜安道.铼-锇同位素定年法中丙酮萃取铼的系统研, 2009,28(3)233-238
    [38]李立兴,松权衡,王登红,王成辉,屈文俊,汪志刚,毕守业,于城.吉林福安堡钼矿中辉钼矿铼-锇同位素定年及成矿作用探讨, 2009,28(3)2283-287
    [39]杜安道,屈文俊,李超,杨刚.铼-锇同位素定年方法及分析测试技术的进展, 2009,28(3)288-304
    [40]郭嘉.黑龙江省霍吉河钼矿床地质特征及成因[D].吉林大学硕士学位论文2009.
    [41]张苏江.黑龙江省铁力地区钼(铜)矿床成矿地质条件及找矿潜力分析[D]. 2009.吉林大学硕士学位论文
    [42] Andao Du, Shuqi Wu, Dezhong Sun, ShuxianWang,Preparation and Certification of Re-Os Dating Reference Materials: Molybdenite HLP and JDC, Geostandard and Geoanalytical Research, 2004, 28 (1): 41-52
    [43] M. E. WIESER,ATOMIC WEIGHTS OF THE ELEMENTS 2005 (IUPAC TECHNICAL REPORT), Pure Appl. Chem., Vol. 78, No. 11, pp. 2051–2066
    [44] J. K. Bohlkea, J. R. de Laeter, P. De Bievre, P. DeBievre,H.S. Isotopic Compositions of the Elements, 2001, J. Phys. Chem. Ref. Data, Vol. 34, No. 1, 2005,pp57-67
    [45] Wenjun Qu,Ai Y F and Feng R Z.Mo-bearing granitic material sources and genetic type of Yangjiazhangzi-Lanjiagou area[J]. Henan Geol.,1985,(Supp.):198~204(in Chinese)
    [46] Andao Du, Shuqi Wu, Dezhong Sun, Shuxian Wang, Richard Markey Holly Stein, John Morgan and DmitryMalinovskiy, , Preparation and Certification of Re-Os Dating Reference Materials: Molybdenite HLP and JDC,Geostandard and Geoanalytical Research, 2004, 28 (1): 41-52
    [47] Smoliar M.I., Walker R.J. and Morgan J.W.(1996) Re-Os ages of group IIA, IIIA, IVA and VIB iron meteorites. Anal.Chem., 1995,67:2136-2141,Science271, 1099-1102
    [48]刘宝山,任凤和,李仰春,赵焕力.伊春地区晚印支期I型花岗岩带特征及其构造背景[J].地质与勘探.2007,43(1):74-78
    [49]芮宗瑶,张洪涛,陈仁义,王志良,王龙生,王义天.斑岩铜矿研究中若干问题探讨[J].矿床地质,2006,25(4):491-500
    [50] Dengjun,Liuwei,Sunzhongshi,et al.Evidence of mantle-rooted fluid and multi-levelcirculation ore-formingdynamics:A case study from the Xiadian gold deposit,Shangdongprovince,China.[J].Science in China(series D):2003,46:123-134.
    [51] Dengjun,Wangqingfei,Sunzhongshi.Origin of gold bearing fluid and its initiative localizationmechanism in Xiadian gold deposit,Shandong province[J].Chinese Journal of geochemistry.2002,21(3):282-288
    [52] Li.Peilan.Yu.Xingzhen.Experimental Study Of The Principle Of Geochemical Potential Conservation Based On The Mineralization Of Duobaoshan Porphyry Copper Deposit[J].Zhongnan Kuangye Xueyuan Xuebao/Journal of Central-South Institute of Mining and Metallurgy.1987,18(4):384-384
    [53] Zheng.you-ye.Ore-forming fluid controlling minerallzation in Qulong super-large porphyry copper deposit,Tibet[J].Diqiu Kexue–Zhongguo Dizhida Daxue Xue bao/Earth Science-jlurnal of China University of Geosciences.2006,31(3):349-354
    [54] LuekJM,AllegreCJ.ThestudyofmolybdenitesthroughtheI81Re-Os ehronameter.EarthPlanet.Sci.Lett.,1982,6:291-296.
    [55] Mor nJW,Loveri JF,Reand abundaneesinsomeigneousandmetamorphierocks.EarthPlanet. 1.Lett.,1967,3(1):219-224.
    [56] Haynes D.W.,Cross K.C.,Bill R.T..Olympic Dam Ore Genesis:A Fluid-Mixing Modle.Econ.Geog.[J].1995,90:281-307

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