黄金
黃金
황금
Gold
2015年
11期
7-12
,共6页
密文天%辛杰%席忠%李长才%王文祥%武景龙
密文天%辛傑%席忠%李長纔%王文祥%武景龍
밀문천%신걸%석충%리장재%왕문상%무경룡
项家村金矿床%地质特征%矿床成因%商都%内蒙古
項傢村金礦床%地質特徵%礦床成因%商都%內矇古
항가촌금광상%지질특정%광상성인%상도%내몽고
Xiangjiacun Gold Deposit%geological characteristics%deposit genesis%Shangdu%Inner Mongolia
内蒙古商都项家村金矿床位于白云鄂博裂谷带东段南缘,金矿床的赋矿岩层为晚二叠世黑云母钾长花岗岩. 研究后确定2种矿体类型,分别为蚀变岩型和石英脉型. 区内的控矿构造为乌兰哈达—高勿素深大断裂带,该断裂具多期次和继承性的特征,是重要的导矿构造. 次级构造董家村背斜北翼的层间断裂带为矿质赋存提供了空间,是重要的容矿构造. 项家村金矿床的发现为裂谷带南缘找矿指明了方向.
內矇古商都項傢村金礦床位于白雲鄂博裂穀帶東段南緣,金礦床的賦礦巖層為晚二疊世黑雲母鉀長花崗巖. 研究後確定2種礦體類型,分彆為蝕變巖型和石英脈型. 區內的控礦構造為烏蘭哈達—高勿素深大斷裂帶,該斷裂具多期次和繼承性的特徵,是重要的導礦構造. 次級構造董傢村揹斜北翼的層間斷裂帶為礦質賦存提供瞭空間,是重要的容礦構造. 項傢村金礦床的髮現為裂穀帶南緣找礦指明瞭方嚮.
내몽고상도항가촌금광상위우백운악박렬곡대동단남연,금광상적부광암층위만이첩세흑운모갑장화강암. 연구후학정2충광체류형,분별위식변암형화석영맥형. 구내적공광구조위오란합체—고물소심대단렬대,해단렬구다기차화계승성적특정,시중요적도광구조. 차급구조동가촌배사북익적층간단렬대위광질부존제공료공간,시중요적용광구조. 항가촌금광상적발현위렬곡대남연조광지명료방향.
Xiangjiacun Gold Deposit in Shangdu is located in the south edge of east section of Bayan Obo rift belt. The host strata are late Permian biotite moyites. Two orebody types are determined after study,namely the altered rock type and the quartz vein type. The main formation of mine are Halahuogete formation of the Mesoproterozoic Bay-an Obo Group, Baogedawula formation of the neogene pliocene, quaternary Pleistocene and the Holocene. Research shows that main ore-controlling structure in target zone is Wulanhada-Gaowusu deep fault which is characterized by multiple phases and succession and is an ore-conducting structure. The interlaminar fault in the north wing of the sec-ondary structure,Dongjiacun anticline,as an important ore-hosting structure,provides ore-depositing space. The discov-ery of Xiangjiacun Gold Deposit points the right direction for the prospecting work in the south edge of the rift.