—Quartz Hydration Fills Gap In Dating Artifacts “” By measuring the thickness of the so-called hydration layer of quartz-containing artifacts and other materials, researchers can determine their age with a high degree of accuracy, according to a new study [J. Archaeol. Sci., 31, 883 (2004); http://www.sciencedirect.com/science/journal/03054403]. The new method—quartz hydration dating—can date artifacts from 100 to 100,000 years old, filling a chronological gap for artifacts and other materials that are between 50,000 and 100,000 years old, and for which current dating techniques are mostly ineffective. Materials containing quartz are common and have been used for millennia to make tools, housewares, and decorative objects.
by VICTORIA GILMAN |
April 19, 2004