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Prehistoric Dating Techniques

A shallow glimpse into the wonders of Anthropology. Prehistoric Dating Techniques. Anthropologic Dating Periods. Trying to establish dates and ages for artifacts in order to understand our chronology Where and when did the early humans originate. Anthropologic Dating Periods.

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Prehistoric Dating Techniques

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  1. A shallow glimpse into the wonders of Anthropology Prehistoric Dating Techniques

  2. Anthropologic Dating Periods • Trying to establish datesand ages for artifactsin order to understand our chronology • Where and when did the early humans originate

  3. Anthropologic Dating Periods • Trying to establish dates and ages for artifacts in order to understand our chronology • Where and when did the early humans originate

  4. Olduvai Gorge – Homo Habilis

  5. Relative Dating • Relies on Stratigraphy, • Follows geologic principals of rock & sediment layering to estimate dates • Biostratigraphy, • Previously dated fossils • Distinct Flora • and Dendrochronology • Study of tree Rings

  6. Relative Dating • Useful for Geologic & Prehistoric events and when absolute techniques cannot be applied • Law of Super Position • Seriation • Setting an object into a series • Supported by Multivariate Statistical Analysis

  7. Chronometric Dating - Definitions • Isotope • Same number of protons but more neutrons in the nucleus of an atom • Unstable Isotope • An atom that is trying to return to its stable atomic mass • Half Life • Length of time required for a quantity to decay to half its initial value.

  8. Chronometric Dating – Isotopes

  9. Chronometric Dating – Process • Measure amount of isotope • Compare to half life quantity to determine time period.

  10. Thermoluminescence • Electrons are captured in crystalline structures of objects • Applying heat to them allow electrons to escape • Measure sample’s intensity of luminescence • Relate luminescence intensity to radiation dose • Determine the dose per year that the sample has been exposed to

  11. Thank you for your time • Kari Mosleh • Avital Birger • Melika Farnia • Bob Chatman Java Man – 1.7 m.y. R.I.P. Arthur C. Clarke =(

  12. Citations • http://www.channel4.com/history/microsites/B/bodies/cases/case12.html • BBC - Dawn of Man (2000) by Robin Mckie| ISBN 0-7894-6262-1

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