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Meaning of 碱性岩

Lookup via: Pinyin | Radicals
碱 jiǎn 性 xìng 岩 yán (Trad.: 鹼性巖)
basic rock; mafic rock (with less silicon and more magnesium, iron etc)
Example Sentences
1
火山岩系列主要为橄榄玄粗岩系
,
其次为高钾钙碱性岩系
。
Volcanic rock series include mainly the shoshonite series and subordinately the high-K calc-alkalic series.
2
浅成低温热液型金矿与碱性岩
、
斑岩金铜矿之间密切伴生
。
Epithermal gold deposits have genetic relationship with alkaline rocks and porphyrys, and always are associated with porphyry cooper-gold de-posits.
3
概述了攀西地区碱性岩类产出的地质背景
,
岩体的主要特征
。
Geological setting and main features of alkali series in Panzhihua-Xichang region are outlined.
4
广东省从化市石岭方钠石正长岩是南岭地区唯一已知的早白垩世硅酸不饱和碱性岩
。
The Shiling sodalite syenite, Guangdong province, is only early Cretaceous SiO2-undersaturated alkali syenite known in Nanling area, southeastern China.
5
广东省从化市石岭方钠石正长岩是南岭地区已知惟一的早白垩世硅酸不饱和碱性岩
。
The Shiling sodalite syenite, Guangdong province, is only early Cretaceous SiO2-undersaturated alkali syenite known in Nanling area, southeastern China.