volcanic rock type

The continental volcanic rock type gold deposits are the most important, particular and prospective new type of gold deposit in Xinjiang.

陆相火山岩型金矿目前是新疆最为重要也最富有特色和发展前景的金矿新类型。

The main rock type of the volcanic rock is trachyandesite with small amounts of trachyte, basaltic-trachyandesite and leucite basaltic-trachyandesite.

火山岩主要岩石类型为粗安岩，少量粗面岩、玄武粗安岩、白榴石玄武粗安岩；

With the discovery of volcanic oil-gas pools, volcanic rock reservoirs, a special oil-gas reservoir type, are paid more and more attention in these days.

随着国内外火山岩油气藏的发现，火山岩储层作为一种特殊的油气储层类型越来越受人们的重视。