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Debating scientific dating

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Recall that atoms are the basic building blocks of matter.

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A submethod within biostratigraphy is faunal association: Sometimes researchers can determine a rough age for a fossil based on established ages of other fauna from the same layer — especially microfauna, which evolve faster, creating shorter spans in the fossil record for each species.When it comes to determining the age of stuff scientists dig out of the ground, whether fossil or artifact, “there are good dates and bad dates and ugly dates,” says paleoanthropologist John Shea of Stony Brook University.The good dates are confirmed using at least two different methods, ideally involving multiple independent labs for each method to cross-check results.Note that, contrary to a popular misconception, carbon dating is not used to date rocks at millions of years old.Before we get into the details of how radiometric dating methods are used, we need to review some preliminary concepts from chemistry.Biostratigraphy: One of the first and most basic scientific dating methods is also one of the easiest to understand.

Layers of rock build one atop another — find a fossil or artifact in one layer, and you can reasonably assume it’s older than anything above it.

Nye, “the science guy,” plays by the rules of the scientific method and accepts the fundamental principle of biology: evolution by natural selection.

Ham fabricates elaborate tales about Adam and Eve coexisting with vegetarian ceratosauruses in the Garden of Eden.

The Scientific Dating Team oversee scientific dating as part of projects funded through the Heritage Protection Commissions Programme.

We conduct research and commission radiocarbon dating, dendrochronology, and other forms of scientific dating such as archaeomagnetic and luminescence dating.

These provide full technical details of all the radiocarbon dates funded during period covered by each volume.