Limitations of obsidian hydration dating

Sources, Implications, and New Directions. Journal of Archaeological Science Ancient Mesoamerica 4 2: Friedman, Irving and John Obradovich. Obsidian Hydration Dating of Volcanic Events.

Obsidian hydration dating

Friedman, Irving and Robert L. Part I, The Development of the Method. Friedman, Irving and F. Obsidian Hydration Dating Update. American Antiquity 48 3: Trembour, and Richard E. In Chronometric Dating in Archaeology, edited by R.

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Friedman, Irving, Fred W. Smith, and George I. Quaternary Research 41 2: Reasserting the Utility of Obsidian Hydration Dating: Liritzis, Ioannis and Nikolaos Laskaris. Journal of Non-Crystalline Solids Jack Rink and Jeroen W. Encyclopedia of Earth Science Series.

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Springer Dordrecht, New York. Progress and Prospects in Obsidian Hydration Dating.

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Meighan and Glenn S. A Coming of Age.

Why Dating Methods Can Date Nothing

Tsong, and Charles M. Obsidian Dating and East African Archeology. Wicket, and Aaron Barkatt.

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Considerations of Hydration-rind Dating of Glass Artifacts: Technical Studies, by Robert U. Skinner, and Richard M. Journal of California and Great Basin Anthropology Mazer, and John K. Implications for Obsidian Hydration Dating. Mazer, and Barry E. Laboratory Obsidian Hydration Rates. In Archaeological Obsidian Studies: Method and Theory, edited by M. Advances in Archaeological and Museum Science Series.

SIMS in general refers to four instrumental categories according to their operation; static, dynamic, quadrupole, and time-of-flight, TOF. In essence it is a technique with a large resolution on a plethora of chemical elements and molecular structures in an essentially non destructive manner. An approach to OHD with a completely new rationale suggests that refinement of the technique is possible in a manner which improves both its accuracy and precision and potentially expands the utility by generating reliable chronological data.

A test of the model followed using results from Mount 65, Chalco in Mexico by Riciputi et al.

In Rhodes, Greece, under the direction and invention of Ioannis Liritzis, [11] the dating approach is based on modeling the S-like hydrogen profile by SIMS, following Fick's diffusion law, and an understanding of the surface saturation layer see Figure. In fact, the saturation layer on the surface forms up to a certain depth depending on factors that include the kinetics of the diffusion mechanism for the water molecules, the specific chemical structure of obsidian, as well as the external conditions affecting diffusion temperature, relative humidity, and pressure.

This latest advance, the novel secondary ion mass spectrometry—surface saturation SIMS-SS , thus, involves modelling the hydrogen concentration profile of the surface versus depth, whereas the age determination is reached via equations describing the diffusion process, while topographical effects have been confirmed and monitored through atomic force microscopy.

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Several factors complicate simple correlation of obsidian hydration band thickness with absolute age. Temperature is known to speed up the hydration process. Thus, artifacts exposed to higher temperatures, for example by being at lower elevation , seem to hydrate faster. As well, obsidian chemistry, including the intrinsic water content, seems to affect the rate of hydration.

Once an archeologist can control for the geochemical signature of the obsidian e.

Obsidian Hydration Services

Water vapor pressure may also affect the rate of obsidian hydration. The first step concerns the calculation of a 3rd order fitting polynomial of the SIMS profile eq. The second stage regards the determination of the saturation layer, i. The whole computing processing is embedded in stand-alone software created in Matlab version 7.

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From Wikipedia, the free encyclopedia. Journal of Archaeological Science. Advances in Obsidian Glass Studies. Obsidian and Ancient Manufactured Glasses, ed. Part I, The Development of the Method". A test using results from Mound, Chalco, Mexico". Archived from the original on New evidence of Cycladic Final Neolithic dated by novel luminescence and Obsidian Hydration methods". Canon of Kings Lists of kings Limmu.