黄金
黃金
황금
GOLD JOURNAL
2013年
7期
13-18
,共6页
赵海滨%李杰美%田红彪%韦定君%朝银银
趙海濱%李傑美%田紅彪%韋定君%朝銀銀
조해빈%리걸미%전홍표%위정군%조은은
韧-脆性剪切带%卡拉麦里成矿带%金水泉金矿床%新疆
韌-脆性剪切帶%卡拉麥裏成礦帶%金水泉金礦床%新疆
인-취성전절대%잡랍맥리성광대%금수천금광상%신강
ductile-brittle shear zone%Kalamari metallogenic belt%Jinshuiquan gold deposit%Xinjiang
金水泉金矿床位于新疆东准地区卡拉麦里成矿带西段,产于清水-苏吉泉大断裂与卡拉麦里深断裂之间;区内构造活动强烈,次级断裂、裂隙发育,自矿脉向围岩发育一套较完整的韧-脆性变形体系,构成以NW向为主的强蚀变碎裂岩带;区内岩浆活动频繁,老鸦泉岩体呈条带状分布于区内北部,构成金属元素迁移活化富集的强大热源;地层出露古老的变质岩系及金丰度值较高的中泥盆统浅海相碎屑岩,并均已接受后期强烈的变形变质,发育糜棱面理、石香肠、剪切褶皱等构造形迹,具韧-脆性剪切变形特征;矿体呈带状、透镜状赋存于与NW向韧-脆性构造体系相交的雁列式扩容带、剪切裂隙中,形态、分布严格受韧-脆性剪切带空间制约,随应变作用加强并在叠加后期脆性变形(石英脉发育)时矿化富集明显。
金水泉金礦床位于新疆東準地區卡拉麥裏成礦帶西段,產于清水-囌吉泉大斷裂與卡拉麥裏深斷裂之間;區內構造活動彊烈,次級斷裂、裂隙髮育,自礦脈嚮圍巖髮育一套較完整的韌-脆性變形體繫,構成以NW嚮為主的彊蝕變碎裂巖帶;區內巖漿活動頻繁,老鴉泉巖體呈條帶狀分佈于區內北部,構成金屬元素遷移活化富集的彊大熱源;地層齣露古老的變質巖繫及金豐度值較高的中泥盆統淺海相碎屑巖,併均已接受後期彊烈的變形變質,髮育糜稜麵理、石香腸、剪切褶皺等構造形跡,具韌-脆性剪切變形特徵;礦體呈帶狀、透鏡狀賦存于與NW嚮韌-脆性構造體繫相交的雁列式擴容帶、剪切裂隙中,形態、分佈嚴格受韌-脆性剪切帶空間製約,隨應變作用加彊併在疊加後期脆性變形(石英脈髮育)時礦化富集明顯。
금수천금광상위우신강동준지구잡랍맥리성광대서단,산우청수-소길천대단렬여잡랍맥리심단렬지간;구내구조활동강렬,차급단렬、렬극발육,자광맥향위암발육일투교완정적인-취성변형체계,구성이NW향위주적강식변쇄렬암대;구내암장활동빈번,로아천암체정조대상분포우구내북부,구성금속원소천이활화부집적강대열원;지층출로고로적변질암계급금봉도치교고적중니분통천해상쇄설암,병균이접수후기강렬적변형변질,발육미릉면리、석향장、전절습추등구조형적,구인-취성전절변형특정;광체정대상、투경상부존우여NW향인-취성구조체계상교적안렬식확용대、전절렬극중,형태、분포엄격수인-취성전절대공간제약,수응변작용가강병재첩가후기취성변형(석영맥발육)시광화부집명현。
The Jinshuiquan gold deposit is located in the west part of Kalamari mineralization belt in East Junggar region,between the Qingshui-Sujiquan fault and the Kalamari deep fracture .There are strong tectonic activities and secondary-faults,fissures in this area ,and an integrated system of ductile-brittle deformation formed from mineral vein to wall rock,resulting strong altered cataclastic rock belts mainly trending NW .Frequent magmatic activities in this ar-ea and the intrusive rock mass of stripped form in Laoyaquan occurring in the north area constitute the intense hot source that drives the metal element movement and enrichment .Out of the strata expose mainly ancient metamorphic rocks and the clastic rocks of shallow sea faces in middle-Devonian Period which with high gold background value .Af-fected by metamorphic alteration in late phase of the period ,the two kinds of rocks developed mylonitic texture ,bou-din,and shear fold,etc.,and bear the characteristic of ductile-brittle shear deformation.The gold ore-bodies in form of belts and lens occurred in the diagonal expander belt and shear fissure which intersected with the NW trending ductile -brittle tectonic systems ,whose shape and distribution are controlled strictly by the space of ductile-brittle shear zone . The mineralization and enrichment became more obviously as the stress was enforced and in the multi -brittle deforma-tion( quartz vein obtaining ) .