Andesites

基本解釋

The possible existence of andesites on Mars is intriguing.
火星上可能有安山巖存在，這很值得玩味。
On Earth, andesites typically form when descending tectonic plates mix water into subterranean molten rock.
在地球上，安山巖通常是板塊的下沉使水混入地下熔融的巖石而形成。
Most andesites come in grayish black and are pretty good stone materials with fine and firm texture being not easy to be effloresced.
安山巖多爲灰黑色，質(zhì)地細密，堅硬不易風化，是非常優(yōu)良的石材。
Yingcheng group's volcanic rocks in Shengping gas field are composed of rhyolites, andesites, basalts, felsites and volcanic fragmental rocks.
陞平氣田白堊系營城組火山巖主要爲流紋巖、安山巖、玄武巖、霏細巖及火山碎屑巖。
Volcanicity was violent during the Early Carboniferous in Santanghu region.The volcanic rocks consist of basalts,andesites and dacite liparite,with andesites playing the main part.
三塘湖地區(qū)早石炭世火山活動強烈，發(fā)育以安山巖類爲主的玄武巖、安山巖、英安流紋巖的巖石組郃。