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希腊扎金索斯岛的蓝洞被誉为世界上最迷人的50个地方之一。陆地蓝洞中的水质从上到下一般分为淡水层、硫化氢层、无氧层。淡水层的水可以饮用;硫化氢层的水含有微生物代谢的大量硫化氢,会腐蚀人的肌肤;无氧层虽然不能保存动物的肌肉,但是甲壳骨骼可以得到几乎完美的保存,故而也被古生物学界称为天然的历史博物馆。
The Blue Hole in Zakynthos, Greece, is reputed to be one of the 50 most fascinating places in the world. Water quality in terrestrial blue caves is generally divided into freshwater, hydrogen sulphide and anaerobic layers from top to bottom. Fresh water layer can drink water; hydrogen sulfide layer of water contains a large number of microbial metabolism of hydrogen sulfide, will erode human skin; anaerobic layer although not to save animal muscles, but the shell bones can be almost perfect preservation, it is also paleontology The academic community is called the Natural History Museum.