蕨化石

蕨化石 Gallery Image

蕨化石

让一块化石形成需要特殊的条件,最初的有机质(例如动物或植物)必须处于未完全腐化的条件中,这通常意味着一种无氧环境,比如沼泽地。当有机质处于那里,它周遭的泥泞便经时转化为石质,石质中的矿物质渗入腐朽后的有机质后,它也成了岩石,我们就这样得到了化石。就蕨化石而言,它形成于石炭纪,化石上蕨叶的暗色形象基本上是煤炭。煤炭事实上就是形成于此类植物的,这也是煤炭作为化石燃料为人所知的原因。

你能在曼城博物馆找到你喜爱的化石吗?

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