Rehydroxylation dating

The RHX method depends on the validity of this law for describing long-term RHX weight gain on archaeological timescales.

There is now strong support for power-law behaviour from analyses of long-term moisture expansion data in brick ceramic, some of which now extends over more than 60 y.

Another method would be by association with organic material.

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more Rehydroxylation is a developing method of dating fired materials that was introduced to fired brick in 2009 and archaeological pottery in 2012.

This technique is based upon dating the Stage II kinetics of the rehydroxylation process using a (time)1/4 power model.

It is based on the fact that after a ceramic specimen is removed from the kiln at the time of production, it immediately begins to recombine chemically with moisture from the environment.

This reaction reincorporates hydroxyl (OH) groups into the ceramic material, and is described as rehydroxylation (RHX).

Thermogravimetric analysis complements the rehydroxylation research in understanding the influence of carbonates in the rehydroxylation rate.

The chronological limits are tested using excavated material from Iron Age, Jordan while known age brick samples are used to explore the influence of extreme temperatures on the rehydroxylation rate.You can do this with thermoluminesence, which uses natural radioactivity to give a date, but it’s complex and difficult so it’s rarely used.TY - JOURT1 - Rehydroxylation (RHX) dating of archaeological pottery AU - Wilson, Moira A.Rehydroxylation is a developing method of dating fired materials that was introduced to fired brick in 2009 and archaeological pottery in 2012.This technique is based upon dating the Stage II kinetics of the rehydroxylation process using...We show that the rehydroxylation (RHX) method can be used to date archaeological pottery, and give the first RHX dates for three disparate items of excavated material.

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