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词汇 Rock fragment
分类 英语词汇 英语翻译词典
释义

Rock fragment

原声例句
BBC 听力 2019年4月合集

Rock fragments have been found in fossils pummeled by the vast amounts of material thrown into the atmosphere by the asteroid's massive impact.

化石中发现的岩石碎片受到了大量物质的撞击作用,撞击的物质是因小行星大规模冲击作用而甩进大气层内的物质。

剑桥雅思阅读

A violent eruption can blow the top few kilometers off a mountain, scatter fine ash practically all over the globe and hurl rock fragments into the stratosphere to darken the skies a continent away.

强烈的火山喷发可以把几千米的山顶喷开,把灰尘颗粒抛向世界各地,把碎石抛向平流层,使得另一个大陆的天空一片黑暗。

英语百科

Rock fragment

A sand grain that would be classified as a rock fragment.  In this case, the rock fragment would be a volcanic rock fragment.  Scale box in milimeters, plane-polarized light on top, cross-polarized light on bottom.

A rock fragment, in sedimentary geology, is a sand-sized particle or sand grain that is made up of multiple grains that are connected on the grain scale. These can include grains which are sand-sized themselves (a granitic rock fragment), or finer-grained materials (shale fragments). This definition is used for QFR ternary diagrams, provenance analysis, and in the Folk classification scheme, mainly in sandstones.

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