Andesites

基本解释

The possible existence of andesites on Mars is intriguing.
火星上可能有安山岩存在，这很值得玩味。
On Earth, andesites typically form when descending tectonic plates mix water into subterranean molten rock.
在地球上，安山岩通常是板块的下沉使水混入地下熔融的岩石而形成。
Most andesites come in grayish black and are pretty good stone materials with fine and firm texture being not easy to be effloresced.
安山岩多为灰黑色，质地细密，坚硬不易风化，是非常优良的石材。
Yingcheng group's volcanic rocks in Shengping gas field are composed of rhyolites, andesites, basalts, felsites and volcanic fragmental rocks.
升平气田白垩系营城组火山岩主要为流纹岩、安山岩、玄武岩、霏细岩及火山碎屑岩。
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.
三塘湖地区早石炭世火山活动强烈，发育以安山岩类为主的玄武岩、安山岩、英安流纹岩的岩石组合。