张家口崇礼小西湾侵入岩成矿条件及矿化机制研究
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摘要
张家口市崇礼区北部完成了1∶5万地球化学测量,小西湾侵入岩位置恰与化探工作圈定的AS33,即小西湾综合异常高度套合。利用区域资料及异常查证所获得的大比例尺地质、物化探数据,对该区成矿条件进行了综合分析,并推测了矿化蚀变的形成机制及其矿化蚀变体主要赋存位置。通过推断该区矿化机制并建立模型,认为该区具有寻找中高温热液型多金属矿床的潜力,并对下一步的勘查方向提出了建议。
1 ∶ 50000 geochemical survey has been completed in the northern part of Chongli District,Zhangjiakou City.The position of Xiaoxiwan intrusive rocks is highly consistent with the Xiaoxiwan composite anomaly( AS33) delineated by geochemical exploration. Utilizing regional data and large scale geological,geophysical and geochemical data obtained by anomaly verification,the authors made an integrated analysis of the ore-forming conditions of this district,and inferred the formation mechanism of mineralization alteration as well as the position of the mineralized altered body. Based on inferring mineralization mechanism and establishing model,the authors hold that the district possesses the potential in search for medium-high temperature hydrothermal polymetallic deposits. Suggestions are also put forward concerning the orientation of further exploration.
1 ∶ 50000 geochemical survey has been completed in the northern part of Chongli District,Zhangjiakou City.The position of Xiaoxiwan intrusive rocks is highly consistent with the Xiaoxiwan composite anomaly( AS33) delineated by geochemical exploration. Utilizing regional data and large scale geological,geophysical and geochemical data obtained by anomaly verification,the authors made an integrated analysis of the ore-forming conditions of this district,and inferred the formation mechanism of mineralization alteration as well as the position of the mineralized altered body. Based on inferring mineralization mechanism and establishing model,the authors hold that the district possesses the potential in search for medium-high temperature hydrothermal polymetallic deposits. Suggestions are also put forward concerning the orientation of further exploration.
引文
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[2]中南矿冶学院物探教研室.金属矿电法勘探[M].北京:冶金工业出版社,1980:310-314.
[3]彭媛媛.新疆卡拉麦里一带小黄山地球化学特征及找矿潜力[J].新疆有色金属,2014(S1):10-11.
[4]段洪芳,李长江,李小永.沽源盆地遥感地质构造特征与找矿远景[J].矿产勘查,2014,5(4):623-629.
[5]吕增尧.张麻井铀钼矿床地质特征及沽源盆地找矿思路[J].矿产勘查,2012,3(4):452-457.
[6]张旗.岩浆热液矿床最佳成矿部位探讨[J].甘肃地质,2013,22(3):1-11.
[7]安国英.青海省东昆仑地区地球化学异常特征及金矿靶区筛选与评价[J].物探与化探,2013,37(2):218-224.
[8]戴慧敏,代雅键,马振东,等.大兴安岭查巴奇地区水系沉积物地球化学特征及找矿方向[J].现代地质,2012,26(5):1043-1050.
[9]樊玉朋,姜兴钰,王子洋.河北省阜平县口子头普查区化探异常及找矿前景分析[J].地质调查与研究,2016,39(1):71-75.
[10]樊玉朋,王子洋,刘核,等.河北省隆化县南部地区金多金属成矿条件分析及找矿方向[J].中国地质调查,2015,2(7):58-65.
[11]俞礽安,司马献章,唐永香,等.内蒙古阿巴嘎萨茹塔拉地区地球化学异常特征及成矿潜力分析[J].地质找矿论丛,2014,29(2):278-283.
[12]施俊法,唐金荣,周平,等.关于找矿模型的探讨[J].地质通报,2011,30(7):1119-1125.
[13]刘伟.岩浆流体在热液矿床形成中的作用[J].地学前缘,2001,8(3):203-215.
[14]肖庆华,惠卫东.试论岩浆流体成矿作用[J].新疆有色金属,2007(4):13-17.
[15]谭文娟,魏俊浩,郭大招,等.地质流体及成矿作用研究综述[J].矿产与地质,2005,19(3):227-232.
[16]李伟,刘显凡,秦志鹏.地质流体与成矿作用综述[J].矿床地质,2012(S):667-668.
[17]李兆麟,杨荣勇,孙晓明,等.地质作用中的流体形成演化及成矿作用[J].地学前缘,1996,3(4):237-244.
[18]郝晓园,宋凯,牛树银,等.河南熊耳山干树金矿成矿作用与围岩蚀变特征[J].地质找矿论丛,2015,30(1):75-80.
[19]张实,张惠芬.关于长石-高岭石动态形成过程的讨论[J].矿物学报,1992,12(4):373-380.
[20]瞿思思,周汉文,钟增球,等.广西合浦新屋面高岭石矿物学特征及其形成途径[J].地质科技情报,2010,29(5):9-14.