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1、*u#?p#sT刘幼平(L8 L L 550005)K 1 简要叙述了黔西北地区铅锌矿的地质特征, 从断陷盆地a构造a地层岩性a矿化富集a热液活动a物化探异常几个方面论述了它的成矿规律b认为水城断陷盆地控制了区内铅锌矿床 (点) 的分布区域; NW向构造带控制铅锌矿床 (点) 的集中产出, 其内之断层和层间构造带直接赋存铅锌矿体; 石炭) 二叠系地层的白云岩a白云质灰岩a灰岩是含矿的有利岩性; 多期次的构造岩浆活动与铅锌矿成矿有关; 物化探异常均沿NW向构造展布, 异常浓集中心往往与矿床 (体) 吻合b初步建立了该区铅锌矿找矿模式雏形b1oM 黔西北; 地质特征; 控矿规律; 找矿模式;ms|
2、 P618142 43 DSM A cI| 1000- 5943 (2002) 03- 0169- 06L8a)c)u81#,?C#5() 100),56)bM,?C8R?Mv,9F,4,OV0vC3;bM8u#+#?p,uTy,sT|Bilb3T$,MTZ,V+m,8?p,ysT b1,Nu#Mb1 #+#u02,BJaNW_/MubJ*#,h,/Q+MbP=_?,NW_),:,u,I?;Fa=?,s(1959) ),o,L8Lg,)=b1982MLs5bB; /0,a?5aa5,a#1M,a#Bbm1 *um1)L; 2)/; 3)5(); 4)E; 5)8; 6)|;F1Vs: , ;,
3、 ;/Vs: F, HF; vF; F,#Fb31Z#a,QM;1#a+a#MasM;F1aZFaMFaFbKMA,R,aM,1KM,QZFaMbF,B#,B3% 9%,KVr? 50%,#B2% 4%,Kr10%Pbu=o#+,PbaZnaAgaCuos,s98NW_/s,si,:*u#?p#sT Lm1); 2); 3); 4); 5); 6)Gd;2. 4 ?pX5(8)+9,?C5(8):bWB?pb:_?pVAVC/+Z,F:VV_/,VM#vM#,/vV,B#;b8?:V/,lMvbF:BV/M,ZnKAb8:VV?5,_/vMaia|8,/)5|b1#8(V2,m3)b_?p,1
4、VCH#MFbH/:*u#?p#sT V5sSS+cy/0Zy/baaaCbF*s,#1AbMsYPP) KbouPbaZnaCuaAg,ssbuPbaZnsNW_Hs,)siboNW_eHZbMHNW_eQ,AUv,Osb8se,B,a?5aa5bsW/e,B,aibFsV,abV/,.,n#a+a#MaM,Fva,8b;./,Z#a,8a?5abKMs8_KMM,KMMbKM=,cM,MaAaFaC,Qb致谢: 本文利用了我局二总队a地勘院及有色矿系研究院及外单位部分地质资料, 在此对参加这些工作的同志表示衷心感谢bID1 o,.J/#M.L:LS/, 1998.2 ,.L#M.L:LS/
5、, 1996.3 L8.L8uM.;, 1987.PreliminaryStudyontheMetallogenicRegulationandtheProspectingModelforthePb- ZnDepositsintheAreasof Southwest GuizhouLIUYou- ping(Academy of MineralExploration, Guizhou Bureau of Nonferrous Geological Exploration,Guiyang 550005, China)Abstract This paper summarizesthegeologyof
6、thePb- Zn depositsintheareasofsouthwestGuizhou, anddiscussesits ore- formingregulation in view of fault- subsidencebasin, structure, stratumlithology, minera-lized concentration, thermal activity and abnormalof physical chemical exploration. In thewriter. s opinion,theShuicheng fault- subsidencebasi
7、n governs thedistributed zones of thePb- Zn deposit or orepoints in theareas; thestructuralbeltswith NW strikes controltheconcentrated yieldsofthePb- Zn depositsor orepoints,itsinterior faultsand interstratifiedstructuralbeltsdirectlypreservesthePb- Znorebodies; thedolomitesin theCarboniferous- Permian strata, dolomiticlimestone and limestone
