冀北西龙头-半截塔地区地球化学特征与找矿远景区浅析
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摘要
本文以1/5万水系沉积物测量成果为基础,从地球化学参数特征、元素组合特征、区域分布规律和异常特征等方面对西龙头-半截塔地区地球化学背景进行了分析,认为该区主要成矿元素异常受NE向构造、岩浆岩控制明显,主要成矿元素Ag、Pb、Zn、Mo等异常发育,强度高、浓度分带比较清晰,是寻找中低温热液型银铅锌多金属矿床的有利区域。结合地质、化探综合信息,在该区圈定了5处找矿远景区,可为进一步矿产勘查工作提供参考。
Based on the 1/50 000 stream sediment measurement in the Xilongtou-Banjieta area,the geochemical parameters, element paragenetic assemblage features, regional distribution and geochemical anomaly characteristics was nalyzed. It is suggested that the main ore-forming elements Ag, Pb, Zn, Mo and so on were developed abnormally with high intensity and high density zonation, and this is a favorable area for finding the medium-low temperature hydrothermal type silver-lead-zinc polymetallic deposits. Combined with geological and geochemical comprehensive information, five prospecting prospects were delineated. The study can provide an important reference for the further exploration.
Based on the 1/50 000 stream sediment measurement in the Xilongtou-Banjieta area,the geochemical parameters, element paragenetic assemblage features, regional distribution and geochemical anomaly characteristics was nalyzed. It is suggested that the main ore-forming elements Ag, Pb, Zn, Mo and so on were developed abnormally with high intensity and high density zonation, and this is a favorable area for finding the medium-low temperature hydrothermal type silver-lead-zinc polymetallic deposits. Combined with geological and geochemical comprehensive information, five prospecting prospects were delineated. The study can provide an important reference for the further exploration.
引文
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[3]许晓峰.河北丰宁牛圈浅成低温热液银金矿床成矿模式[J].华北有色金属地质,1991,(1):1-10
[4]魏晓英.河北丰宁营房-牛圈银矿床构造控矿特征和成因探讨[J].地质找矿论丛,2000,15(3):261-281.
[5]傅朝义,高百林.河北丰宁牛圈银金矿床构造地质特征[J].华北地质矿产杂志,1998,13(3):258-263.
[6]曾恒荣,文德焜.河北省丰宁县撒岱沟门钼矿地质评价报告[R].承德:华北有色地质勘探公司五一四地质大队,1985.
[7]任耀武.红旗营子群研究—冀北铅锌银矿床的矿源层[J].华北地质矿产杂志,1997,12(1):44-51.
[8]李超,胡西顺,范红科,等.陕西省旬阳县红花坪锌矿床地质地球化学特征及成因探讨[J].山东国土资源,2015,31(8):28-32.
[9]李声之,王继兴,王喜富,等.河北省北京市天津市区域地质志[M].北京:地质出版社,1989.
[10]李声之.河北省岩石地层[M].北京:中国地质大学出版社,1996.
[11]钱建平.构造地球化学方法找矿的基本问题[J].云南地质,2006,25(4):384.
[12]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.
[13]杨小峰,刘长垠,张泰然,等.地球化学找矿方法[M].北京:地质出版社,2007.
[14]任耀武,曹倩雯.河北丰宁营房铅锌银矿床银的赋存状态及富集规律[J].华北地质矿产杂志,1995,10(1):77-86.
[15]戚长谋.元素地球化学分类探讨[J].吉林大学学报:地球科学版,1997,21(4):361-365.
[16]王明燕.大西沟金矿地质特征及成矿规律研究[D].北京:中国地质大学,2008.
[17]姚玉增,巩恩普,崔显德,等.河北丰宁银矿控矿因素与深部远景分析[J].矿产与地质,2005,19(3):267-270.