贵州地质
貴州地質
귀주지질
GUIZHOU GEOLOGY
2011年
3期
200-205,234
,共7页
金矿%控矿因素%找矿方向%贵州
金礦%控礦因素%找礦方嚮%貴州
금광%공광인소%조광방향%귀주
gold deposit%ore control factor%prospecting%Guizhou
通过对古邦金矿区控矿因素即地层、构造及岩相古地理研究,认为区内南华系长安组含金较高,为金成矿提供一定的物源;矿区金矿化类型为构造蚀变岩型、石英薄脉型金矿;区内南华系长安组为一套冰期—间冰期沉积,其地层岩性对区内金成矿具专属性;该区劈理密集带内发育有断裂构造的(构造蚀变带)明显地控制了金矿化体的展布;呈密集的陡倾斜压剪性节理带控制着区内石英薄脉型金矿的产出;构造蚀变带和节理密集带对金成矿关系密切,直接控制着该类型金矿体的定位。
通過對古邦金礦區控礦因素即地層、構造及巖相古地理研究,認為區內南華繫長安組含金較高,為金成礦提供一定的物源;礦區金礦化類型為構造蝕變巖型、石英薄脈型金礦;區內南華繫長安組為一套冰期—間冰期沉積,其地層巖性對區內金成礦具專屬性;該區劈理密集帶內髮育有斷裂構造的(構造蝕變帶)明顯地控製瞭金礦化體的展佈;呈密集的陡傾斜壓剪性節理帶控製著區內石英薄脈型金礦的產齣;構造蝕變帶和節理密集帶對金成礦關繫密切,直接控製著該類型金礦體的定位。
통과대고방금광구공광인소즉지층、구조급암상고지리연구,인위구내남화계장안조함금교고,위금성광제공일정적물원;광구금광화류형위구조식변암형、석영박맥형금광;구내남화계장안조위일투빙기—간빙기침적,기지층암성대구내금성광구전속성;해구벽리밀집대내발육유단렬구조적(구조식변대)명현지공제료금광화체적전포;정밀집적두경사압전성절리대공제착구내석영박맥형금광적산출;구조식변대화절리밀집대대금성광관계밀절,직접공제착해류형금광체적정위。
By study the ore factor,stratum,structure and lithofacies palaeogeography of Gubang gold mining area,it's thought that Changan formation of Nanhua system which gold content is high,affords some material source for gold mineralization.The gold mineralization is tectonic altered rock and quartz vein type gold deposit.Changan formation of Nanhua system in this area is a series of interglacial deposit during ice age.The stratum lithology is exclusive for the gold mineralization in this area,the tectonic altered belt of fracture structure which developed in the cleavage concentrated zone controls the distribution of gold mineralization zone.The concentrated steep baroclinic shear joint controls the occurrence of quartz vein fold deposit.The tectonic altered zone and joint contrated zone has deep relation of gold mineralization,controls the positioning of this kind of gold ore body.