32402f07 - Introduction to Archaeology: Class 7 Relative...

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Introduction to Archaeology: Class 7 Relative dating: Chronology as brain teaser - stratigraphy and index fossils Copyright Bruce Owen 2002 Two kinds of dating: relative and absolute Relative dating puts things in order, older to younger, without specifying dates in years Relative dating methods Stratigraphy (study of strata, or layers of earth) The layer-cake model, with oldest at the bottom and most recent at the top Steno's law , or the law of superposition Stratigraphy: the study and interpretation of strata A field example feature : a localized stratigraphic unit: pit, hearth, wall, etc. Plan views: looking down; what you see while you are excavating Profile views: looking at the sidewalls of the excavation; what you see when some strata have been removed Recording and interpreting strata in the field Munsell colors, grain size charts, etc. More examples: getting the order of deposition right Association of artifacts with strata Artifacts may or may not have been made or used at the time the stratum accumulated
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32402f07 - Introduction to Archaeology: Class 7 Relative...

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