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Construction of the casa grande by sequential high precision C‐14 dating
Author(s) -
Long Austin,
Andresen John,
Klein Jeffrey
Publication year - 1987
Publication title -
geoarchaeology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 44
eISSN - 1520-6548
pISSN - 0883-6353
DOI - 10.1002/gea.3340020303
Subject(s) - radiocarbon dating , prehistory , archaeology , dendrochronology , geology , range (aeronautics) , paleontology , series (stratigraphy) , absolute dating , geography , materials science , composite material
Two composite radiocarbon dates on wood beams from a unique, prehistoric building in southern Arizona are the result of growth series subsampling of the beams and statistical evaluation of radiocarbon dates on the subsamples. This procedure avoids some of the problems caused by secular variations in the biospheric 14 C activity and by the dating of specimens grown over a range of years. This procedure yields results similar to more precise tree‐ring dates from other sites in the southwestern United States. The procedure illustrated here is applicable to any archaeological tree specimen consisting of at least the last 40 growth rings.