Obsidian hydration dating

This paper presents recent experimental results from the obsidian hydration dating research programme conducted at the Centre for Archaeological Research (CAR), Auckland University.

Two elements of the essential hydration rate component are examined.

First, the influence of potentially significant environmental variables other than ambient temperature is explored.

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Second, an alternative approach to estimating the exponential mean temperatures necessary for dating is presented.It is based on modelling the soil surface energy balance.A comparison with other prediction methods shows it to be a preferable approach.elcome to the Northwest Research Obsidian Studies Laboratory website.We offer a variety of different analytical services related to obsidian artifact trace element provenance ("sourcing") studies and obsidian source studies, primarily in the context of archaeological research.

This website describes our services and provides methodological and source information that supplements and supports our contract investigations and research interests.: Craig has retired and the lab is now open under a new laboratory director and owner, Alex Nyers.Same lab, same spectrometer, same reference collection, same services, new director. PARDON THE MESS: As part of the lab reopening, we're in the process of moving pieces of the website around and you may occasionally run into some inconsistencies or links that don't quite take you where expected.In particular, the maps section and the descriptions of FGV sources are being permanently relocated to : Our former obsidian hydration laboratory is now operating as Willamette Analytics. A NEW IAOS PUBLICATION: A new obsidian-related volume, Twenty Five Years on the Cutting Edge of Obsidian Studies, has recently been published by the International Association for Obsidian Studies (IAOS).Jennifer Thatcher, the longtime experienced hydration analyst at Northwest, remains at the helm. To have a look at a sample or to buy a copy online through Pay Pal, click HERE.THANKS AND A TIP OF THE HAT: In 2016, we celebrated over 20 years as Northwest Research. The continued success of a small analytical laboratory like this one would simply not have been possible without the help and interest of a lot of different people over the years.