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前寒武纪结束的标志是大致同时出现的大部分现生和已绝灭动物门类;最早的遗迹化石;最早出现的带矿质骨骼的原生动物;疑源类新的分异组合;最早知道的岩内微生物和钙藻。同时,地球正从大冰期复苏,冰期使冰川推进到赤道地区海面,并且这个时期又是海洋碳酸盐沉积的持续期,碳酸盐中大量富集~(13)C。这些事件叠加在全球磷质成因的第一个事件上,同时它们也出现在大气圈和水圈氧含量可能大量增加时期。它们也可能和非骨骼碳酸盐的矿物成分长期变化一致,也和存在年代极长的极大的低纬度超大陆的瓦解相吻合。
The sign of the end of the Precambrian is that most of the living and extinct animal species appear at the same time; the earliest fossil remains; the first protozoa with mineral bones; the new divergent combination of suspected sources; the earliest known Rock in the micro-organisms and calcium algae. At the same time, the earth is recovering from the Great Ice Age and the glaciation pushed the glaciers to the equatorial sea surface. This period is also the period of marine carbonate deposition and the carbonate is greatly enriched (13). These events are superimposed on the first event in the global cause of phosphorus formation, and they also occur at a time when the oxygen content of the atmosphere and hydrosphere may increase significantly. They may also coincide with long-term changes in the mineral composition of the non-skeletonic carbonate and with the collapse of the extremely large, low-latitude supercontinent where the age is.