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Why are there no visible fossils in sedimentary rocks?

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Yes, yes there are. My local mountains have so many, many fossils in the sedimentary layers. Not all sedimentary rocks do though. read more

But there are visible fossils in sedimentary rocks. It is the metamorphic and igneous rock that lacks visible fossils. The metamorphic rocks lose the fossils because the minerals forming the rock have recrystallized under pressure and the igneous rocks have no fossils because the rocks were melted. read more

Sedimentary rocks can contain fossils because, unlike most igneous and metamorphic rocks, they form at temperatures and pressures that do not destroy fossil remains. Dead organisms can become sediments which may, under the right conditions, become sedimentary rock. Igneous rock forms from magma; no chance for fossils to form there. read more

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