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    Fossil dating wikipedia

    Geochronology is different in application from biostratigraphy, which is the science of assigning sedimentary rocks to a known geological period via describing, cataloguing and comparing fossil floral and faunal assemblages.

    Other corrections must be made to account for the proportion of throughout the biosphere (reservoir effects).

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    Electron Spin Resonance Dating, or ESR dating, is a technique used to date newly formed materials, which Radiocarbon dating cannot, like carbonates, tooth enamel, or materials that have been previously heated like igneous rock.

    The mineral incorporates uranium and thorium atoms into its crystal structure, but strongly rejects lead.

    Therefore, one can assume that the entire lead content of the zircon is radiogenic, i.e.

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