摘要
云南马关地区分布有许多碧玄岩岩管，其中有些岩管含有地幔橄榄岩包体。笔者在该区工作时着重对含角闪石单辉橄榄岩包体进行了研究，并从地球化学和热力学角度探讨了此类包体的成因机制。
There exist a lot of Cpx-peridotitic xenoliths in basanites of Maguan,Yunnan Province. Detailed researches on mineralogy and geochemistry have been done to understand the genesis of the xenoliths,The ressults show that there is no equilibrium between Cpx-peridotitic noddle and Its host rock,ba- sanite,The formation depth of xenohths is relatively shallow(less than 60 km).The mantle area in which Cpx-peridotites are located has undergone light depletion and late stdge metasonmatism. All these xenoliths are occasional ones brought up tosurface by basanitic magma during its ascending.
出处
《岩石矿物学杂志》
CAS
CSCD
1995年第1期47-51,共5页
Acta Petrologica et Mineralogica
基金
教委博士生导师基金
国家自然科学基金
