资源导刊·地球科技版
資源導刊·地毬科技版
자원도간·지구과기판
RESOURCES GUIDE·EARTH SCIENCE AND TECHNOLOGY
2014年
8期
24-26
,共3页
铁矿床%地质特征%矿床成因%找矿标志
鐵礦床%地質特徵%礦床成因%找礦標誌
철광상%지질특정%광상성인%조광표지
Iron deposit%Geological characteristics%Genesis of deposit%Prospecting Signs
常乐沟铁矿床产于灰色黑云石榴斜长片麻岩和斜长角闪岩的接触带之间，赋矿地层为古元古界陡岭岩群，矿体产状与围岩基本一致，矿石中脉石矿物种类及蚀变与围岩基本一致，矿床具有产于角闪质岩石中的沉积变质铁矿床特征。矿床的形成与古地理及古地形等条件密切相关，找矿标志为暗色的斜长角闪岩和残坡积物中的磁铁矿砾石。
常樂溝鐵礦床產于灰色黑雲石榴斜長片痳巖和斜長角閃巖的接觸帶之間，賦礦地層為古元古界陡嶺巖群，礦體產狀與圍巖基本一緻，礦石中脈石礦物種類及蝕變與圍巖基本一緻，礦床具有產于角閃質巖石中的沉積變質鐵礦床特徵。礦床的形成與古地理及古地形等條件密切相關，找礦標誌為暗色的斜長角閃巖和殘坡積物中的磁鐵礦礫石。
상악구철광상산우회색흑운석류사장편마암화사장각섬암적접촉대지간，부광지층위고원고계두령암군，광체산상여위암기본일치，광석중맥석광물충류급식변여위암기본일치，광상구유산우각섬질암석중적침적변질철광상특정。광상적형성여고지리급고지형등조건밀절상관，조광표지위암색적사장각섬암화잔파적물중적자철광력석。
Changlegou?iron?deposit?occurred?in?the?contact?zone?of?the?grey?biotite?garnet?plagiogneiss?and?the?amphibolite.?The?ore-host?strata?are?the?Douling?group?of?palaeoproterozoic.?The?ore?body?occurrences?are?basically?identical?with?the?wall?rock?occurrences,?and?the?gangue?minerals?species?and?the?altered?rocks?in?the?ore?are?basically?identical?with?the?mineral?species?and?the?altered?rocks?in?the?wall?rock.?The?deposit?has?the?sedimentary?metamorphic?iron?deposit?characteristics?which?occurred?in?the?amphibolitic?rocks.?The?formation?of?the?deposit?is?closely?related?to?paleogeography?and?ancient?landform?etc.?metallogenic?conditions,?and?the?prospecting?signs?of?the?deposit?are?the?dark?amphibolite?and?the?magnetite?ore?gravels?in?the?residual?materials?and?slope?washes.
