Seatearth

（重定向自Underclay）

Seatearth is a British coal mining term, which is used in the geological literature. As noted by Jackson, a seatearth is the layer of sedimentary rock underlying a coal seam. Seatearths have also been called seat earth, "seat rock", or "seat stone" in the geologic literature. Depending on its physical characteristics, a number of different names, i.e. underclay, "fireclay", flint clay, and "ganister" can be applied to a specific seatearth.

单词	underclay
释义	underclay 英汉-汉英词典 n. (煤层下的)底黏土层词组 \| 习惯用语您要查找的是不是： thunderclap n. 霹雳；晴天霹雳似的消息或事件 underclothes n. 内衣 underclass n. 下层社会；下层阶级；贫困阶层 undercoat n. 大衣内的上衣,绒毛,内层油漆 underlay n. 衬底；衬垫物；支撑物 vt. 垫起；从下面支撑 underclay [地质] 底粘土网络短语: underclay limestone 底黏土石灰岩; 淡水石灰岩; underclay uc 低粘岩 root clay underclay 根土层英语百科 Seatearth （重定向自Underclay） Seatearth is a British coal mining term, which is used in the geological literature. As noted by Jackson, a seatearth is the layer of sedimentary rock underlying a coal seam. Seatearths have also been called seat earth, "seat rock", or "seat stone" in the geologic literature. Depending on its physical characteristics, a number of different names, i.e. underclay, "fireclay", flint clay, and "ganister" can be applied to a specific seatearth.
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underclay

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网络短语:

Seatearth