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\nhttps:\/\/www.jstage.jst.go.jp\/article\/geosoc\/116\/2\/116_2_63\/_pdf\/-char\/ja
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\u82f1\u8a9e\u306f https:\/\/en.wikipedia.org\/wiki\/Aragonite
\n\u201dAragonite is a carbonate mineral and one of the three most common naturally occurring crystal forms of calcium carbonate (CaCO3), the others being calcite and vaterite. It is formed by biological and physical processes, including precipitation from marine and freshwater environments. ”
\na carbonate mineral \u70ad\u9178\u5869\u9271\u7269
\ncalcite \u65b9\u89e3\u77f3
\nvaterite \u30d0\u30c6\u30e9\u30a4\u30c8
\nprecipitation \u6c88\u6bbf
\nmarine \u6d77\u6c34\u306e
\nfreshwater \u3000\u6de1\u6c34\u306e
\n“Aragonite is the high pressure polymorph of calcium carbonate. As such, it occurs in high pressure metamorphic rocks such as those formed at subduction zones….Aragonite nonetheless frequently forms in near-surface environments at ambient temperatures”
\npolymorph \u7d50\u6676\u591a\u578b
\nmetamorphic rocks\u5909\u6210\u5ca9
\nsubduction zones \u30d7\u30ec\u30fc\u30c8\u306e\u6c88\u964d\u5e2f
\nnonetheless \u30ce\u30f3\u3056\u300c\u308c\u300d\u30b9\u3000\u305d\u308c\u306b\u3082\u304b\u304b\u308f\u3089\u305a
\nambient temperatures \u5ba4\u6e29
\n“Aragonite forms naturally in almost all mollusk shells, and as the calcareous endoskeleton of warm- and cold-water corals. ”
\nmollusk \u300c\u30e2\u300d\u3089\u30b9\u30af\u3000\u8edf\u4f53\u52d5\u7269
\nendoskeleton \u5185\u9aa8\u683c
\ncoral \u30b5\u30f3\u30b4
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\nhttps:\/\/www.nationalgeographic.com\/science\/article\/chitons-see-with-eyes-made-of-rock
\n\u201dChitons see with eyes made of rock\u201d
\nchiton \u300c\u30c1\u300d\u30c8\u30f3\u3000\u30d2\u30b6\u30e9\u30ac\u30a4
\n\u201dEven though the rocky eyes seem primitive, they are actually the most recent animal eyes to evolve. There are plenty of chiton fossils, but only those that are younger than 10 million years have eyes. That is puzzling in itself.\u201d
\nprimitive \u539f\u59cb\u7684<\/p>\n","protected":false},"excerpt":{"rendered":"
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