How fossils become fossils

Trilobite

The Gist:

Fossilization isn’t an easy process and requires a delicate balance of conditions to yield a fossil. The organisms’ body composition of hard and soft parts, the environment, and predators are all factors that can alter and determine a fossil becoming a fossil. Fossilization can occur through permineralization, freezing, compression, amber entrapment and other mechanisms. Often times, fossils are found in sedimentary rock. Metamorphic rock, being formed from intense pressure, can alter and destroy the remains of certain fossils, while igneous, being formed from magma of a volcano, also does not provide ideal conditions for fossilization due to the high temperatures. There will be further posts, highlighting the specifics.

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