The wall-rocks had single origin,indicating the stable sedimentary environment.
围岩具有单一的源,反映较稳定的沉积环境。
参考来源 - 大巴山构造带构造活动和流体微量稀土元素研究·2,447,543篇论文数据，部分数据来源于NoteExpress
ADJ Sedimentary rocks are formed from sediment left by water, ice, or wind. (岩石)沉积的 [ADJ n]
Because they are porous, sedimentary rocks, such as sandstones and conglomerates, are important potential sources of groundwater.
由于像如砂岩和砾岩这样的沉积岩是多孔的，它们是地下水的重要潜在来源。
Although most fossils are found in marine sedimentary rocks, they also are found in terrestrial deposits left by streams and lakes.
虽然大多数化石是在海洋沉积岩中发现的，但它们也存在于河流和湖泊所留下的陆地沉积物中。
In this process, sedimentary rocks that originally formed on the seabed may be folded upwards to altitudes of more than 26,000 feet.
在这个过程中，最初形成于海床上的沉积岩可能会向上折叠到26000英尺以上的高度。
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