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Unformatted text preview: lative estimate date. shellbeads used often to date sites. use different materials to try date stuff. D. Absolute Dates Chronometric Dating- Most absolute dating methods are not that precise/accurate. diffi-cult to provide exact date- mostly expressing in time span or time range. + or - range Time Span/Range, Need Suite of Dates, Use Different Dating Methods E. Dendrochronology -Master Tree Ring Chronology- reflect temperature and rainfall over time. can date to year that tree is cut -- Problem w/ Complacent Trees F. Obsidian Hydration Obsidian: Can Employ Geochemical Sourcing Methods (XRF). direct age determination. Measure Hydration Layer-microscopic- more time exposed to air = thicker hydration layer. - in microns; Best as Relative Dating Method; Attempts to Use as Absolute Dating Method; Some Problems G. 14C or Radiocarbon Age Determination Radiometric Dating Technique...
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This note was uploaded on 03/02/2010 for the course ANTHRO 02396 taught by Professor Panich during the Spring '09 term at University of California, Berkeley.
- Spring '09