红格地区钒钛磁铁矿地质特征及地球物理找矿的探讨  

Geological Features of the Vanadium-Titanium Magnetite Deposit in the Hongge Area and Its Geophysical Prospecting

作　　者：武斌[1,2] 曹俊兴[1] 唐玉强 邹俊 余舟 

机构地区：[1]成都理工大学地球物理学院,四川成都610059 [2]四川省地矿局物探队,四川成都610072

出　　处：《地质与勘探》2012年第1期140-147,共8页Geology and Exploration

基　　金：中国地质调查局地质大调查项目(项目编号:1212011085158)资助

摘　　要：攀西红格钒钛磁铁矿是我国大型的钢铁生产基地。攀西红格钒钛磁铁矿床赋存于层状基性和超基性的辉石岩和辉长岩岩体中,仅限于攀西裂谷的古隆起带分布,含矿岩体沿安宁河深断裂、昔格达-元谋断裂、攀枝花大断裂侵入。含矿岩体在时间上仅限于华里西期时段的基性-超基性岩。"三位一体"(基性-超基性岩、灯影组白云质灰岩、峨眉山玄武岩)的岩性组合,是形成大型、超大型矿床的必要条件。攀枝花含矿岩体的一级韵律层由岩体上部的辉长岩、中部暗色层状辉长岩、下部中粗粒暗色辉长岩夹橄辉岩和橄榄型矿层组成。准确把握攀西钒钛磁铁的矿床特征,是寻找该矿床的有效途径,目前已利用地球物理方法在红格钒钛磁铁矿及外围发现了多处矿点,为这次整装勘查提出了进一步找矿的新思路。The vanadium-titanium magnetite deposit lies in the Panxi area, a large-scale steel and iron production base in China. It occurs in layered mafic and ultramafic pyroxenolite and gabbro rock bodies, and is confined to the paleo-uplifi zones of the Panxi rift. The ore-beating rock bodies intruded along the Anninghe deep fault, the Xigeda-Yuanmou fault and the Panzhihua fault. The ore-bearing rock body is only restricted in the Hereynian basic- uhrabasie rock. The lithological combination trinity of basic-uhrabasic rock, Dcngyingzu Formation. calcareous limestone and Emei basalt are crucial for the large-sized and ultra-large-sized deposits in this region. The first-order rhythm of the ore-beating Panzhihua ore-beating rock body consists of upper gabbro, middle dark layered gabbro,lower course- grained melagabbro interbedded with the olive pyroxenite and the olive ore bedseam. Mastering character- istics of the vanadium-titanium magnetite deposit accurately is an effective way for searching for this kind of deposits. Currently, many mine occurrences have been found in the Hongge deposit and its surrounding areas using the geophysics method, suggesting a new idea for further prospecting in this region.

关 键 词：钒钛磁铁矿 地质特征 地球物理找矿 红格 

分 类 号：P631.2[天文地球—地质矿产勘探]