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Obsidian Hydration Dating/Ushahidi
Rekodi ya ushahidi wa mbinu

Obsidian Hydration Dating

Obsidian hydration dating (OHD) is a chronometric method that determines the age of obsidian artifacts by measuring the thickness of a hydration layer formed on their exposed surfaces. Developed by Irving Friedman and Robert Smith in 1960, it is based on the principle that fresh obsidian surfaces absorb water from the surrounding environment at a measurable rate. The method is particularly valuable in archaeology for dating volcanic glass tools and other obsidian objects, especially in regions where obsidian was commonly used for cutting and scraping implements.

Sources recorded, not reviewed

Rekodi ya chanzo

Nukuu zimehamishwa kwa uhalisi kutoka kwa rekodi ya chanzo cha mbinu. Hakuna uthibitisho wa kiwango cha dai unaodokezwa kutoka kwao.

Obsidian Hydration Dating (OHD)
Rekodi ya mbinu ya kiajenda · process-pipeline / archaeology
  • Friedman, I., & Smith, R. L. (1960). A new dating method using obsidian: Part 1, the surface rind method. Journal of Geophysical Research, 65(4), 1287-1291. · URL
  • Ericson, J. E., & Berger, R. (1975). Kinetic energy of ionizing radiation as a determinant of the obsidian hydration rate. Nature, 254(5496), 55-56. · URL
  • Mazer, J. J., Bates, J. K., Stevenson, C. M., & Clelland, J. G. (1991). Obsidian-water reactions: Measuring extremely low water contents in obsidian. Geochimica et Cosmochimica Acta, 55(2), 395-405. · URL
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Same method familyArchaeomagnetic Datingmachine-suggested · Relational suggestion, not evidence.Same method familyOptically Stimulated Luminescence Datingmachine-suggested · Relational suggestion, not evidence.Same method familyRadiocarbon Datingmachine-suggested · Relational suggestion, not evidence.Same method familyThermoluminescence Datingmachine-suggested · Relational suggestion, not evidence.

Hali ya ushahidi

Sources recorded, not reviewed

Bibliographic sources are present. Claim-level evidence review has not been performed.

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