关於今天野外地质学的问题 正解是老师投影片错了 下面上字典上的解释 arenite【地】砂质岩,砂碎屑岩(yahoo 字典) A general name used for consolidated sedimentray rocks composed of sand-sized fragments irrespective of composition; e.g. sandstone, graywacke, arkose and calcarenite.(Geosarry) lutite 很抱歉，字典找不到您要的资料喔！(yahoo 字典) A general name used for consolidated rocks composed of muds (silts and/or clays) and of the various associated materials which, when mixed with water, from mud; e.g. shale, mudstone, and calcilutite.(Geosarry) rudite 很抱歉，字典找不到您要的资料喔！(yahoo 字典) A general name used for consolidated sedimentray rocks composed of rounded or angular fragments coarser than sand (granules, pebbles, cobbles, boulders, or gravel or rubble); e.g. conglomerate, breccia and calcirudite.(Geosarry) 另外生痕化石的图片登我扫瞄好了,下礼拜在给你们看. 助教 --

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