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词汇 Protolith
分类 英语词汇 英语翻译词典
释义

Protolith

英语例句库

Kezlag rock formation whose mother rocks are greywacke is basinal deposit, Karakez rock formation's protolith is island arc volcanics.

克孜拉格岩组原岩为杂砂岩,属盆地沉积;卡拉格兹岩组原岩为岛弧火山岩。

英语百科

Protolith

A protolith is the original, unmetamorphosed rock from which a given metamorphic rock is formed (proto-: first; lithos: rock; both Greek).

For example, the protolith of a slate is a shale or mudstone. Metamorphic rocks can be derived from any other kind of non-metamorphic rock and thus there is a wide variety of protoliths. Identifying a protolith is a major aim of metamorphic geology.

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