GEOCHEMICAL EXPLORATION INDICATORS FOR THE WUNUGETUSHAN PORPHYRY Cu (Mo) DEPOSIT
LIANG Sheng-yue1, MA Sheng-ming2, ZHU Li-xin3, LIU Chong-min2, XU Ming-zuan1
1. Geological Survey Technology Institute of Jiangsu Province, Nanjing 210007, China;
2. Institute of Geophysical and Geochemical Exploration, CAGS, Langfang 065000, China;
3. Chinese Academy of Geological Sciences, Beijing 100037, China
Abstract:The Wunugetushan porphyry Cu (Mo) deposit is a typical porphyry Cu (Mo) deposit in the Ergun metallogenic belt. Based on the depletion and enrichment regularity of 47 elements and the alteration zone or mineralization characteristics, this paper has summarized geochemical indicators of this ore deposit. The metallogenic environment indicators such as [KK(SiO2)+KK(K2O)]/KK(Al2O3)+KK(Na2O)+KK(CaO)+KK(Fe2O3)+KK(MgO)]、KK(K2O)/KK(Na2O),KK(K2O)/KK(Rb), CaO, MgO and Na2O can reflect the ore-forming environment and the alteration extent and delineate the alteration area. Cu, Mo, Ge, W, Sn, F, Bi, S, Se and Hf serve as the near-ore indicators, which can reflect the mineralization degree and even indicate the location of the ore body in this ore deposit; [KK(Pb)·KK(Zn)×1000]/[KK(Cu)·KK(Mo)],[KK(As)·KK(Sb)·KK(Bi)]/[KK(Cu)·KK(Mo)],[KK(Au)·KK(Ag)]/[KK(Cu)·KK(Mo),As, Au, Ag and Te serve as the ore periphery indicators, which can enlarge the target of geochemical exploration. These geochemical exploration indicators could offer technical assistance to the prospecting for similar ore deposits in this area and broaden the geological exploration thinking for other types of ore deposits. The anomaly upper/lower limits of these geochemical exploration indicators can be determined by log cumulative frequency scatter diagram.
[1] 李宪臣,孟昭君.内蒙古乌努格吐山—哈拉胜成矿富集区铜多金属资源潜力评价[J].矿产与地质,2003,17(97):294-297.[2] 张普斌,樊俊昌,杨自安,等.内蒙古乌努格吐山铜—钼矿床三维可视化研究[J].矿产与地质,2006,20(4-5):503-506.[3] 任国栋.乌努格吐山斑岩铜钼矿床成矿模式探讨[J].地质与勘探,1987(8):16-23.[4] 弓秋丽,朱立新,马生明,等.斑岩型铜矿床地球化学勘查中岩石化学指标[J].物探与化探,2009,33(1):31-34.[5] 马生明,朱立新,刘崇民,等.斑岩型铜(钼)矿床中微量元素富集贫化规律研究[J].地球学报,2009,30(6):821-831.[6] 梁胜跃,马生明,朱立新,等.乌努格吐山斑岩型铜钼矿床地球化学异常结构研究[J].物探与化探,2010,34(2):821-830.[7] 秦克章,李惠民,李伟实.内蒙古乌努格吐山斑岩型铜钼矿床的成岩成矿时代[J].地质论评,1999,45(2) :180-185.[8] 宋国利.内蒙古乌努格吐山斑岩铜钼矿床地质特征[J].河北地质学院学报,1985,31(3):46-55.[9] 王之田,秦克章.乌努格吐山下壳源斑岩铜钼矿床地质地球化学特征与成矿物质来源[J].矿床地质,1988,7 (4):3-14.[10] 王荣全,宋雷鹰,曹书武,等.乌努格吐山斑岩铜—钼矿地球化学特征及评价标志[J].矿产与地质,2007,21(5) :515-519.[11] 金力夫,孙凤兴.内蒙古乌努格吐山斑岩铜钼矿床地质及深部预测[J].1990,20(1):61-67.[12] 王茵,黄锐华.乌努格吐山斑岩铜钼矿床地质特征及成矿模式[J].地质找矿论丛,1988,3(2):47-58.[13] 秦克章,田中亮吏,李伟实,等.满洲里地区印支期花岗岩Rb-Sr等时年代学证据[J].岩石矿物学杂志,1998(3):235-239.[14] 李诺,孙亚莉,李晶,等.内蒙古乌努格吐山斑岩铜钼矿床辉钼矿铼锇等时线年龄及其成矿地球动力学背景[J].岩石学报,2007,23(11):2882-2888.[15] 宋国利.内蒙古乌努格吐山斑岩铜钼矿床围岩蚀变机理分析[J].哈尔滨师范大学自然科学学报,1985(4):75-81.[16] 陈殿芬,艾永德,李荫清.乌努格吐山斑岩铜钼矿床中金属矿物的特征[J].岩石矿物学杂志,1996,15(4):346-354.[17] 鄢明才,迟清华.中国东部地壳与岩石的化学组成[M].北京:科学出版社. 1997:73-75.[18] Olade M A.Major element halos in granitic wall rocks of porphyry copper deposits,guichon creek batholith,british Columbia[J].Journal of Geochemical Exploration,1977 (7) :59-71.[19] 朱炳球,徐外生,吴承烈.斑岩Cu-Mo矿床原生地球化学异常//张本仁.勘查地球物理地球化学文集:第二集.北京:地质出版社,1985:51-78.[20] 朱炳球,徐外生.斑岩Cu-Mo矿成矿作用的地球化学特征[J].地球化学,1984 (2):107-117.[21] Govett G J S.Rock Geochemistry in Mineral exploration[M].New York:Elsevier Scientific Publishing Company,1983:181-337.[22] Chaffee M A.The zonal distribution of selected elements above the Kalamazoo porphyry copper deposit,Snmanuel district,Pinal county,Arizona[J].Journal of Geochemical Exploration,1976(5):145-165.[23] Boyle R W.The use of major elemental ratios in detailed geochemical prospecting utilizing primary halos[J].Journal of Geochemical Exploration,1974(3):345-369.[24] Olade M A.Trace Element Geochemistory of the Highland Valley and Guichon Creek Batholith in Relation to Porphyry Copper Mineralization[J].Economic Geology,1976(71):733-748.[25] 邵跃.热液矿床岩石测量(原生晕法)找矿[M].北京:地质出版社,1997.[26] Anthony E Y,Titley S R.Patterns of element mobility during hydrothermal alteration of the Sierrita porphyry copper deposit Arizona[J].Economic Geology,1994(89):186-192.[27] 韩海涛,刘继顺,董新,等.西秦岭温泉斑岩型钼矿花岗岩类地球化学特征[J].物探与化探,2008,32 (2):135-138.[28] Korzhinskii D S.The theory of metasomatic zoning[J].Mineralium Deposita,1968(3):222-231.[29] Levinson A A.Introduction to exploration geochemistry[M]. Wilmette:Applied Publishing Ltd,1980:863-889.[30] Watterson J R.Tellurium,a guide to mineral deposits[J].Journal of Geochemical Exploration,1977(8):31-48.[31] 刘崇民.金属矿床原生晕研究进展[J].地质学报,2006,20(10):1528-1537.[32] Liu Chongmin,Xu Waisheng.Primary geochemistry anomalies in the Caijiaying Pb-Zn-Ag deposits,Hebei,China[J].Journal of Geochemical Exploration,1995(55):25-32.[33] Alexander M S,Victor A G.Regional to detailed geochemical mapping of the Kariisk ore district,eastern Trans-Baikal region,Russia[J].Journal of Geochemical Exploration,1995(55):67-74.[34] Lentz D R,Gregoire C.Petrology and mass-balance constraints on major-,trace-,and rare-earth-element mobility in porphyry-greisen alteration associated with the epizonal True Hill granite,southwestern New Brunswick,Canada[J].Journal of Geochemical Exploration,1995(52):303-331.