Modern stromatolites form in shallowtidal areas, and are the result of bacteria growing and trapping minerals as they do so.
在浅滩地区形成的现代层叠岩石,是细菌生长和捕获矿物质而形成的。
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For one thing, the hard aragonite is extremely resilient, an important trait for chitons, which are constantly being pummeled by waves in their natural habitats, shallowtidal pools.