granites

1.The rapakivi granites have a number of petrological peculiarities.

环花岗岩具有若干岩石学的特征。

2.4) characteristics of the association of the rapakivi granites and relative mafic rocks.

秦岭环花岗岩的副物及铁镁含量和环石特征；

3.Alkalescent granites and gold-related silication and argillation are geological prerequisites for the formation of noticeable gold deposits.

摘要偏碱性花岗岩及与金的成活动有关的硅化、粘土化蚀变是黑刺沟金田规模金床存在的地质前提。

4.The Sn granites are characterized by biotite and titanite as Sn-bearing minerals, which suffured hydrothermal alteration, leading to tin leaching and subsequent crystallization of cassiterite.

前者以黑云母、榍石为典型含锡物，它们在流体富，经热液蚀变作用，导致锡的淋滤和结晶富作用；

5.SOL 170 is a solvent based impregnator especially formulated to protect marbles, granites and natural stones from water and dirtpenetration, frost damage and to stop calcareous efflorescence.

SOL 170 是一种特别渗透性配方的防水剂，有效于保护大理石、花岗岩、天然石材等。防止水印及水渍呈现于石材表面，并可防止污渍渗入表面、冰霜侵入及防止风化。