贵州地质
貴州地質
귀주지질
GUIZHOU GEOLOGY
2012年
4期
241-248
,共8页
陶平%姚书振%王亮%王常微
陶平%姚書振%王亮%王常微
도평%요서진%왕량%왕상미
金矿%矿田%矿带%成矿单元%控矿因素%黔东南
金礦%礦田%礦帶%成礦單元%控礦因素%黔東南
금광%광전%광대%성광단원%공광인소%검동남
gold deposit%ore field%ore belt%metallogenic unit%ore -control factor%southeast Guizhou
本文针对黔东南天柱一锦屏一黎平地区浅变质岩系中的金矿,进行了金矿成矿单元划分及其控矿因素的讨论。其中,前人已经进行了高级别金矿成矿单元及其控制因素的研究工作,而更低级别的成矿单元尚无系统划分。为此,本文通过野外调查及综合研究,首次进行了金矿带及矿田的划分,并对其控矿因素做了系统分析。所划分的金矿带属于Ⅳ级成矿带之下的成矿亚带,一般以加里东期北东向褶皱一断裂构造为主要控矿因素,以东西向深部断裂及隐伏岩体为次要控矿要素,但个别矿带以东西向构造与北东向背斜构造的交汇部位为主要控矿因素。所划分的金矿田多数受加里东期北东向复背斜及其次级(复)背斜的控制,部分受大型复背斜两翼逆断层的断夹块控制,还有部分还受东西向基底断裂、隐伏岩体的控制。
本文針對黔東南天柱一錦屏一黎平地區淺變質巖繫中的金礦,進行瞭金礦成礦單元劃分及其控礦因素的討論。其中,前人已經進行瞭高級彆金礦成礦單元及其控製因素的研究工作,而更低級彆的成礦單元尚無繫統劃分。為此,本文通過野外調查及綜閤研究,首次進行瞭金礦帶及礦田的劃分,併對其控礦因素做瞭繫統分析。所劃分的金礦帶屬于Ⅳ級成礦帶之下的成礦亞帶,一般以加裏東期北東嚮褶皺一斷裂構造為主要控礦因素,以東西嚮深部斷裂及隱伏巖體為次要控礦要素,但箇彆礦帶以東西嚮構造與北東嚮揹斜構造的交彙部位為主要控礦因素。所劃分的金礦田多數受加裏東期北東嚮複揹斜及其次級(複)揹斜的控製,部分受大型複揹斜兩翼逆斷層的斷夾塊控製,還有部分還受東西嚮基底斷裂、隱伏巖體的控製。
본문침대검동남천주일금병일려평지구천변질암계중적금광,진행료금광성광단원화분급기공광인소적토론。기중,전인이경진행료고급별금광성광단원급기공제인소적연구공작,이경저급별적성광단원상무계통화분。위차,본문통과야외조사급종합연구,수차진행료금광대급광전적화분,병대기공광인소주료계통분석。소화분적금광대속우Ⅳ급성광대지하적성광아대,일반이가리동기북동향습추일단렬구조위주요공광인소,이동서향심부단렬급은복암체위차요공광요소,단개별광대이동서향구조여북동향배사구조적교회부위위주요공광인소。소화분적금광전다수수가리동기북동향복배사급기차급(복)배사적공제,부분수대형복배사량익역단층적단협괴공제,환유부분환수동서향기저단렬、은복암체적공제。
For the gold deposit in the metamorphic rock series of Tianzhu - Jinping - Liping area in south- east Guizhou, the metallogenic unit division and its ore -control factors are discussed. The metallogenic unit division and its ore - control factors of high - grade gold deposit has been studied, but the low - grade gold de- posit is still not divided. Therefore, by field investigation and comprehensible study, the division of all gold belt and ore field are divided the first time, the divided gold belt is a sub - metallogenic belt of class IV, NE fold - fracture structure of Caledonian usually is the main ore - control factor, EW deep fracture and concealed terrain is the secondary ore - control factor, but the main ore - control factor of some belt is the intersection zone of EW structure and NE anticline. Most of the divided gold field are controlled by NE anticlinorium and its secondary anticlinorium in Caledonian, some is Controlled by faulted block of both sides reverse fault of big anticlinorium, and some is controlled by EW fundamental fault and concealed terrain.