Radiocarbon dating dinosaur bones adult dating somerville massachusetts

23-Jan-2018 10:17

Some organic material, like tree trunks, can be petrified.Petrification happens when the organic material is slowly replaced by minerals. Making a fossil is tricky and the conditions have to be just right.Trace fossils are not the remains of an animal, but something that shows how it lived or died.

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Animals that die in bogs and sink beneath the surface are protected from the elements, other animals, and bacteria that cause decay.How Fossils are Dated: Superposition, Carbon-14, and Radiometric Dating Imagine you've found a fossil in your backyard and you want to know how old it is. A long time ago scientists used the concept of superposition, which states that the oldest layer of sedimentary rock is found at the bottom of the strata, or layers, and the youngest at the top.While they didn't have exact dates for how old these strata were, they could determine which fossils were older than others based on which layer they were found in.Bogs are another place where animal remains can be well preserved.

A bog is a type of wetland where a large amount of dead plant matter accumulates.

Over time the soft parts of the animal decay, leaving only the harder parts like teeth and bones.

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