English Dictionary

ultramafic

形容詞

(geology) Describing igneous rocks that contain magnesium and iron and only a very small amount of silica, such as are found in the Earth’s mantle.

日本語の意味

地球のマントルなどに見られる、マグネシウムや鉄を豊富に含み、ケイ酸含有量が非常に少ない火成岩を形容する用語

Geologists were excited to find an ultramafic outcrop that provided direct samples of the Earth's mantle.

地質学者たちは、地球のマントルの直接のサンプルを提供する超苦鉄質の露頭を発見して興奮しました。

意味（1）

(geology) Describing igneous rocks that contain magnesium and iron and only a very small amount of silica, such as are found in the Earth’s mantle.

more ultramafic （ comparative ）

most ultramafic （ superlative ）