摘要
西天山哈拉达拉岩体由冷凝带和具３个二级韵律层的层状岩系组成，岩石类型主要是辉长岩、橄榄辉长岩和辉绿岩．岩石的ｍ／ｆ＝０．４１～２．６５，∑ＲＥＥ＝２９．６×１０－６～６２．６×１０－６，Ｌａ／Ｙｂ＝２．２５～６．２５。主要矿物为斜长石（Ａｎ４１．０～７２０），单斜辉石（Ｅｎ２８．０～４３．３，Ｆｓ１５．２～２４．０，Ｗ０４１．５～４８．０）和橄榄石（ＦＯ５６．０），岩体成矿专属性为Ｆｅ（Ｖ，Ｔｉ）型。矿化类型有岩浆型Ｆｅ（Ｖ，Ｔｉ）矿化，热液型Ｆｅ－Ｃｕ矿化，Ｃｕ矿化和Ｃｕ－Ａｕ矿化。与典型矿床有关的层状基性岩体特征对比表明，岩体成矿条件有利于形成攀枝花式钒钛磁铁矿床。
Haladala massif in west Tianshan, which can be divided into a chilled zone and threestratiform formations with the characteristic of second-order rhythmic layering, consists largelyof gabbro, olivine gabbro and diabase. The m/f ratios, ∑REE contents and La / Yb ratios ofthe rocks range from 0.41￣2.65, 29.6×10-6￣62.6×10-6,and 2.25￣6.25,respectively.Themajor minerals are plagioclase(An41.0￣72.0),clinopyroxene (En28.0￣43.3, Fs15.2￣24.0,Wo41.5￣48.0)and olivine (Fo56.0).The metallogenetic specialization can be considered as the Fe (V,Ti)mineralization of the magmatic type,Fe-Cu,Cu and Cu-An mineralizations of thehydrothermal type.Compared with other stratiform basic massives connected with typical oredeposits. It is suggested that the ore-forming condition of the Haladala massif is similar to thatof the Panzhihua-type V-Ti magnetite deposit.
出处
《桂林工学院学报》
1996年第3期252-262,共11页
Journal of Guilin University of Technology
关键词
基性岩体
层状岩
含矿性
辉长岩
金
矿化
stratiform gabbro
V-Ti magnetite mineralization
copper mineralization
goldmineralization
Xingjiang
Haladala
