此外，河流筑坝等工程也增加了沉积物的产量，更不用说大气中二氧化碳和甲烷的增加。
Also, things like the damming of rivers has caused increased sediment production, not to mention the addition of more carbon dioxide and methane in the atmosphere.
地质学家杰拉德·邦德注意到，一些沉积物颗粒被氧化铁染色，这表明它们起源于冰川覆盖红砂岩露头的地方。
Geologist Gerard Bond noticed that some of the sediment grains were stained with iron oxide, evidence that they originated in locales where glaciers had overrun outcrops of red sandstone.
红、赭、粉等颜色来自三叠纪干燥期缓慢形成的沉积物，在足够长的时间里，侵蚀与氧化作用创造出这种奇迹。
The reds, ochres and pinks hail from the much slower deposition during the Triassic's dryer periods, when erosion and oxidation had time to work their magic.
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