找矿信息量法在成矿预测中的应用_以武当西缘铅锌铜矿预测为例

游远航,杨建中,胡明,杨斌(鄂西北地质矿产调查所,湖北襄樊441003):,,7,:;;;:P628.1;P612:A:10011412(2006)010058050,E.B.(1968)N.N(1969)[1],,,,[25],1SN(),,,()(1),,,(),,,,,,EWNE(SN)NWNNE,,,,;,,:20050131:20050224:(AA301C103):(1972),,,,,21120063Vol.21No.1Mar.20061Fig.1ThegeologicalsketchshowingwesternWudangofHubei1.2.3.4.5.6.7.8.9.10.()11.12.13.14.15.2,:IA(B)=lgP(A/B)/P(A),IA(B)AB,P(A/B)BA,P(A)A,,IA(B)=lg(Nj/N)/(Sj/S),NjA;N;SjA;SIA(B)=0,A,A;IA(B),A;IA(B),A,[1,4,6]33.1:,,Pb,Zn,Cu,Pb,Zn,Cu;[6][1],,3.2,[6]1!10,ARCVIEW(S=//40),(),,2.5km∀2.5km,1075,213.3,(30),#0,1∃,1,0,,159211:1Table1TheoreguideforprospectingleadzinccopperinwesternWudangNjSj(Nj/N)/(Sj/S)IA(B)1104031.270.104283031.3520.131352021.2670.103451321.9390.28852372.7670.44261361.4220.153751941.3190.1283811.8960.278983721.1010.04210NE62151.4290.15511NW94501.0240.0112SN0500-13EW51102.3270.3671462731.1250.05115NW104051.2640.10216EW113741.5060.17817NE73730.961-0.0218SN2711.4420.159191.25km3463.3390.52420Cu112192.5710.4121Pb131384.8220.68322Zn142283.1430.49723Ag132702.4650.39224Au73011.190.07625NE11180.434-0.3626NW41941.0550.02327075400.664-0.18280~273890.921-0.04292~463530.87-0.06304103561.4380.1583.41,,:I+=K%nj=1Ij,K,0.75,n,I+,[1]10(2)2Table2SelectedoreguideforprospectingleadzinccopperinwesternWudang21Pb0.683191.25km0.52422Zn0.49750.44220Cu0.41023Ag0.39213EW0.36740.28880.27816EW0.1783.5,1.80,,,1075,98(13)2Fig.2Thecontourofleadzinccopperinformationvalues1.2.A3.B4.C6020063.69813,21,2113/21∀100%=61.9%,0.6193.7,(2),,7,A1,B4,C2(2,3)3Table3ThefutureprospectingtargetsandtheirgeologyA1-2.942;;,,NNWNW;;;1!5Ag,Au,Cu,Pb,Zn,,,B1-2.577;EWSNNW;;;3NNWNW;Ag,Au,Cu,Pb,Zn,,Pb,Zn,CuB2-2.762;;NW,NW,,NE;;,,B3-2.768,;;;;Ag,Cu,Pb,Zn,,,B42.263;EW,,NNWNE;;;Ag,Au,Cu,Zn,Ag,Au,C12.353,;NWNENW;;,,Zn,,C22.002;NW,SN,NWNNENEE;;;Ag,Au,Cu,Pb,Zn,61211:4(1)(3),,(2),,,,(3),,,(4)GIS(MORPAS),;,,:本文为&湖北武当地区铜银矿控矿条件成矿规律及找矿方向研究∋的部分成果;在论文的撰写过程中,得到项目组人员的帮助,蔡志勇高工罗洪高工和张锡鹏高工审阅了全文,在此深表谢意:[1],,.[M].:,1983.5253,104107.[2],.[J].,2002,38(3):4951.[3],,.GIS[J].,2003,22(3):7782.[4],,,.[J].,1999,21(3):223225.[5],.[J].,2004,40(3):2025.[6].[M].:,2004.2324,279288.APPLICATIONOFPROSPECTINGINFORMATIONCONTENTSMETHODFORMINEROGENETICPREDICTION:ACASESTUDYONPREDICTIONOFLEADZINCCOPPERDEPOSITINWESTERNWUDANGAREAYOUYuanhang,YANGJianzhong,HUMing,YANGBin(NorthwesternHubeiSurveyofGeologyandMineralResources,Xiangfan441003,China)Abstract:BasedonthecomprehensiveanalysisofgeologybackgroundandleadzinccoppermineralizationandorecontrollingconditionsofwesternWudang,theauthersapplyprospectinginformationcontentstosynthesizequantitativeminerogeneticprediction.Thepredictionshows7minerogeneticprospectiveareas.Theconclusionofpredictionhassomeindictionforfurtheroreprospectingofthisarea.Keywords:prospectinginformationcontents;minerogeneticprediction;leadzinccopperdeposit;westernWudang622006