File:Vznik zkamenělin.svg
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Summary[edit]
DescriptionVznik zkamenělin.svg |
Čeština: Vznik zkamenělin - zjednodušené schéma:
1: Trilobit po úmrtí na dně moře. Začínají se rozkládat měkké orgány. 2: Po uhynutí je trilobit pomalu pohřbíván sedimentem. 3: Množství sedimentu nad trilobitem stále vzrůstá a i schránka se začíná rozkládat ale jak pomalu ubývá je nahrazována jinými minerály 4: Za miliony let je zkamenělina již mineralizovaná a i měkký sediment, který byl dříve na dně se změnil v pevnou horninu. 5: Nakonec eroze odkryje vrstvy se zkamenělým trilobitem. Pak už stačí jen štěstí a trilobita nalézt. |
Date | |
Source | Own work |
Author | Pavel Bokr |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 08:55, 22 January 2021 | 1,488 × 1,052 (65 KB) | Trilobit (talk | contribs) | Uploaded own work with UploadWizard |
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Height | 841.89pt |