形成这些沉积物的河流实际上离一个叫做特提斯海的古代海洋不远。
The river that formed these deposits was actually not far from an ancient ocean known as the Tethys Sea.
在湖泊沉积物中发现了古代花粉的遗迹，这表明，该地区曾经是温和的热带。
Ancient pollen found in the sediment in the lakes has shown that the area was once mildly tropical.
然而，由于地壳的变动，那些包含着古代动植物尸体的沉积物重新回到了地球表面，在那里他们分解，并又一次的从大气中吸取氧气。
As the crust shifts, however, it can bring sediments containing ancient corpses back to the surface, where they decompose, removing oxygen from the atmosphere once more.
Bodélé盆地，这个被古代湖底沉积物覆盖的撒哈拉平原，面积1万平方英里，每年横扫这里的大风会把70万吨沙尘送入大气中。
Winds whipping across the Bodélé, a 10,000 square mile Saharan plain covered by ancient lakebed sediments, carry 700,000 tons of dust into the atmosphere annually.
科学家还发现从深海小心翼翼带到地表的沉积物样本里含有细菌和古代细菌。
And sediment samples brought carefully to the surface were found to contain bacteria and archaea.
一切环境的碳酸盐沉积物，基本上都是古代生物化学体系的产物。
Carbonate sediments in all environments are basically products of an ancient biochemical system.
地下生物的最早证据是在格陵兰岛地表发现的有机化学结构的岩石，被认为来自古代的海底沉积物。
The earliest evidence for terrestrial life is the organic chemical structure of a rock found on the surface in Greenland. The surface was thought to be from an ancient sea floor sediment.
地下生物的最早证据是在格陵兰岛地表发现的有机化学结构的岩石，被认为来自古代的海底沉积物。
The earliest evidence for terrestrial life is the organic chemical structure of a rock found on the surface in Greenland. The surface was thought to be from an ancient sea floor sediment.
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