玄武岩中角闪石巨晶较少,而钛角闪石巨晶则更少。我国只在台湾西部的马福地区和澎湖地区的新生代火山岩中发现,而我国大陆上发现的角闪石巨晶均为富钛韭闪石。我们在对镜泊湖地区进行的两幅1:5万地质填图(小北湖幅和柳河林场幅)过程中在镜泊湖西北的蛤蟆塘地区的全新世玄武岩中发现了大量的钛角闪石巨晶。该地区玄武岩为一种特殊的白榴石碱玄岩,岩石化学分析表明,岩石以贫Mg、Ca,富Al和碱(K_2O+Na_2O=9.8％～11.28％)为特征,并且Na_2O-1.5>K_2O。 There are fewer amphiboles in basalt and fewer in amphiboles. Our country is only found in the Cenozoic volcanic rocks in the Mafu area and the Penghu area in the west of Taiwan, while all amphiboles found in mainland China are giant titanium fullerenes. A large amount of titanium horn flash was found in the Holocene basalts in the area of ​​Tomatengu, northwest of Jingpohu, during the two 1: 50000 geological mapping (Xiaobeihu amplitude and Liuhe forest amplitude) Stone giant crystal. The basalts in this area are a special kind of leucite basalt. Petrochemical analysis shows that the rocks are characterized by poor Mg, Ca, Al and alkali (K_2O + Na_2O = 9.8% ~ 11.28%), and Na_2O- K_2O.