To date, komatiites with spinifex textures have not been found in the supracrustal rocks, but rock sequences similar to greenstones metamorphosed up to upper amphibolite facies are often observed.
在龙岗地块与北带之间的接触带上，发育了一条晚太古宙-古元古宙时期的线性活动带。
Amphibolite Facies
英语例句库
中文百科
角闪岩 Amphibolite
（重定向自Amphibolite Facies）
角闪岩又名斜长角闪岩，是主要由角闪石和斜长石组成的区域变质岩，是由富铁白云质泥灰岩和其他基性岩石，在中温至高温区域变质条件下，形成的岩石，具有块状或微显片理构造，经常与片岩或片麻岩共生，伴生的矿物有铁铝榴石、绿帘石、黝帘石、以及黑云母、透辉石等。
角闪岩在工业上可以用作铸石的附加原料，耐磨、耐腐蚀、硬度大。
英语百科
Amphibolite 角闪岩
（重定向自Amphibolite Facies）
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Amphibolite /æmˈfɪbəlaɪt/ is a metamorphic rock that contains amphibole, especially the species hornblende and actinolite, as well as plagioclase. A holocrystalline plutonic igneous rock composed primarily of hornblende amphibole is called a hornblendite, which is usually a crystal cumulate rock. Rocks with >90% amphiboles which have a feldspar groundmass may be a lamprophyre.
- gemmological的意思
- gemmologist的意思
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