intrusive rock造句

Tou Huishi). Pyroxene in intrusive rock is generally equiaxed grain.

Recent discovered Hanshan gold deposit is a structure-controlled altered rock type related with intrusive rocks in North Qilian Mountain.

In study area, the igneous rocks consist of intrusive and volcanic rocks. the intrusive rock in this area are called Tanggula mountain rock which is part of Tanggula magmatic belt.

The intermediate-co-acrid hypabyssal intrusive rock of middle to later Variscan epoch to Indosinian epoch had close relation with gold metallization.

The Precambrian intrusive rocks in western Shandong area mainly fall into two parts: the Taishanian (Archean) and the Aolaishanian (early Proterozoic) intrusive rocks.

This paper reports an understanding of the origin of the Tonglu volcanic intrusive rocks on the basis of further studies.

The results obtained can also provide new information for geological exploration. This paper describes briefly the mapping of acid intrusive rocks in eastern Beishan area.

The Baocun and Chaoshan gold deposits in Shizishan are field are of skarn type, and their intrusive rocks are Baocun quartz diorite and Baimangshan augite quartz diorite respectively.