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蠕虫管化石揭示出海水的秘密ｓｕｅｂｏｗｌｅｒ一位美国地质学家说，在３．２亿年前海水化学现象的微妙变化可以通过蠕虫管化石推断出来。蠕虫生活在海底软泥中，其管道中形成的钙质无机盐随海水成分的变化而变化。有许多生物利用海水中溶解的离子建造壳体或骨骼。有些生...
Worms Tube Fossils Reveal the Secrets of Seawater Suebowler A US geologist said that subtle changes in the chemical phenomenon of seawater 320 million years ago can be inferred from worm tube fossils. Worms live in seafloor slimes and the calcium salts formed in their pipes vary with seawater composition. There are many organisms that use the dissolved ions in seawater to build shells or bones. Some students ...