6.In the pale light of the tunnel, 30-foot fossil traces of lycopsid gleam slickly in the shale roof like alligator skins.
它们看起来像一棵棵巨型芦笋。在隧道内黯淡灯光下,页岩顶部30英尺松化遗迹就像鳄鱼皮般发出柔滑光亮。
7.The lithologies are dominated by alternating sandstones, shales and limestone, and the sedimentary environment based on shoreland tidal flat with swamp developed in the lower.
岩性为砂、页岩-灰岩互层,沉积环境以滨岸潮坪为主,下部沼泽发育。
8.In lamina of shale which deposited in deep lake away from paleo-debouchment in the Shahejie Formation in the Jiyang Depression, some aeolian silty sand was discovered.
9.Double Rollers Crusher is used to crush clunch and partial shales for brick enterprises. It has two rollers to circumrotate in reverse. The clunch between rollers are crushed by extrusion.