A study on chemical composition variations of weathered andesite .
风化安山岩主要化学成份变化之研究。
The ree distribution pattern of the xihu lake is similar to that of andesite .
西湖沉积物稀土分布模式与安山岩相似。
The moltenlava is mainly basalt , followed by andesite , and a little amount of rhyolite .
火山熔岩以玄武岩居多,安山岩次之,含少量流纹岩.
Portion of ocean and marine floor overlying continental crust ( e.g. , andesite , granite ) ; shallower than the ocean overlying oceanic crust ( e.g. , basalt ) ; includes continental shelves , continental slopes and overlying waters .
