西北地质
西北地質
서북지질
NORTHWESTERN GEOLOGY
2014年
2期
164-171
,共8页
徐庆华%王延隆%赵海权%乔玉兰
徐慶華%王延隆%趙海權%喬玉蘭
서경화%왕연륭%조해권%교옥란
赵家堡子金矿%中低温热液矿床%找矿标志
趙傢堡子金礦%中低溫熱液礦床%找礦標誌
조가보자금광%중저온열액광상%조광표지
Zhaojiapuzi gold deposit%low midelle-temperature liquid mesothermal-epithermal de-posits%prospecting marks
赵家堡子金矿位于猫岭-卧龙泉金矿化集中区,是典型的中低温热液矿床。通过区域变质作用,使岩层中的 Au、Ag 等成矿元素活化,随着变质热液运移到有利的构造部位初步富集;通过应力作用,使岩石发生塑性变形,形成了北西向的韧性剪切带。同时,使 Au、Ag 等成矿元素再次活化转移、富集;通过后期构造岩浆的大面积侵入,形成了叠加在韧性剪切带之上的北西向韧-脆性断裂和北东向的脆性断裂,同时宏大的热源使地层中的 Au 再次活化、迁移、富集,同岩浆所带来的大量成矿物质一起在有利的构造部位富集成矿,是本区金矿的主要成矿阶段。
趙傢堡子金礦位于貓嶺-臥龍泉金礦化集中區,是典型的中低溫熱液礦床。通過區域變質作用,使巖層中的 Au、Ag 等成礦元素活化,隨著變質熱液運移到有利的構造部位初步富集;通過應力作用,使巖石髮生塑性變形,形成瞭北西嚮的韌性剪切帶。同時,使 Au、Ag 等成礦元素再次活化轉移、富集;通過後期構造巖漿的大麵積侵入,形成瞭疊加在韌性剪切帶之上的北西嚮韌-脆性斷裂和北東嚮的脆性斷裂,同時宏大的熱源使地層中的 Au 再次活化、遷移、富集,同巖漿所帶來的大量成礦物質一起在有利的構造部位富集成礦,是本區金礦的主要成礦階段。
조가보자금광위우묘령-와룡천금광화집중구,시전형적중저온열액광상。통과구역변질작용,사암층중적 Au、Ag 등성광원소활화,수착변질열액운이도유리적구조부위초보부집;통과응력작용,사암석발생소성변형,형성료북서향적인성전절대。동시,사 Au、Ag 등성광원소재차활화전이、부집;통과후기구조암장적대면적침입,형성료첩가재인성전절대지상적북서향인-취성단렬화북동향적취성단렬,동시굉대적열원사지층중적 Au 재차활화、천이、부집,동암장소대래적대량성광물질일기재유리적구조부위부집성광,시본구금광적주요성광계단。
Situated in cat RidgeMaoling~and Wolongquan gold mineralization concentration area, Zhaojiapuzi gold deposit is is a typical mesothermal-of the epithermal deposits.Through Regional metamorphism of rocks activated metallogenic elements such as while Au,and Ag ore-forming el-ements such as activation,who migrated with metamorphic hydrotherm and enriched initially in favorable tectonic settingswith metamorphic hydrothermal favorable structural parts migrated preliminary enrichment.Under the effect of stress,Through stress,so that the plastic deforma-tion of rocks,was aroused to forming a NW-trending ductile shear zone,whileand the ore-form-ing elements such as Au,and Ag again ore-forming elements such as remobilizationed again,and enrichmented;.Then through a large area of the late magmatic intrusion,forming formed a NW-trending ductile-brittle fracture and a NE-trending brittle fault superimposed on top of the ductile shear zones superimposed on top of the NW-trending ductile-brittle fracture and the North East to brittle fracture.Meanwhile,the while ambitiouenormouss heat sources formations gold acaused another gain activation,migration,and accumulation of the minerals,enriched and mineralized at favorable structural positions with a large number of metallogenic material brought by magma, whichtic minerals brought together into a large number of favorable structural positions in enrich-ment and mineralization,this area is a major stage of mainly intothe gold mineral phasedeposit mineralization in this area.