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ultramafic rock

查词链接:https://www.dute.org/dict/ultramafic_rock复制链接
超镁铁岩
超镁铁质岩
查看英英释义
abstract:
Ultramafic (also referred to as ultrabasic) rocks are igneous and meta-igneous rocks with very low silica content (less than 45%), generally >18% MgO, high FeO, low potassium, and are composed of usually greater than 90% mafic minerals (dark colored, high magnesium and iron content). The Earth's mantle is composed of ultramafic rocks.

网络释义
超铁镁岩
... 超铁镁岩,超基性岩 ultramafic rock 超铁镁岩,超基性岩 ultramafite 合成青金石;海蓝,群青〔漆,染料〕 ultramarine ...
超镁铁质岩
... 超基性岩||ultrabasic rock 超镁铁质岩||ultramafic rock 超糜棱岩||ultramylonite ...
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