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About 149 individual mammoths are believed to be represented at the site, either as building material (for the structures) or as food (from refuse found in nearby pits) or as fuel (as burned bone in nearby hearths).About 10 large pits, with diameters between 2-3 m (6.5-10 ft) and depths between .7-1.1 m (2.3-3.6 ft) were found surrounding the mammoth-bone structures at Mezhirich, filled with bone and ash, and are believed to have been used as either meat storage facilities, refuse pits, or both.Six AMS radiocarbon dates from Mezhirich returned calibrated dates between 14,850 and 14,315 BP. Mezhirich was discovered in 1965 by a local farmer, and excavated between 19 by a series of archaeologists from the Ukraine and Russia. The main structural elements of the walls of these buildings are stacked mammoth bone, including skulls, long bones (mostly humeri and femora), innominates, and scapulae.At least three of the huts were occupied at approximately the same time.

Items of personal ornamentation include shell and amber beads, and ivory pins.Mezhirich is a large open air site where several mammoth bone huts with hearths and pit features were used between about 14,000-15,000 years ago.Mezhirich is located approximately 15 kilometers (10 miles) west of the Dneiper river in central Ukraine, located on top of a promontory overlooking the confluence of the Ros and Rosava Rivers, 98 meters (321 feet) above sea level.It was recognized that direct measurement of the number of 14C atoms in the sample would greatly enhance the sensitivity, and some unsuccessful attempts were made in this direction using conventional mass spectrometry. This technique has allowed the measurement of radiocarbon in samples of much less than a milligram, or over a thousand times less material than is needed from the older counting methods. 1977] were published simultaneously in , reporting on a development which added a particle accelerator into a mass spectrometer to produce an accelerator mass spectrometer (AMS).Radiocarbon Dating of the Shroud of Turin 1 - Department of Geosciences, 2 - Department of Physics, University of Arizona, Tucson, Arizona 85721, USA 3 - Research Laboratory for Archaeology and History of Art, University of Oxford, Oxford, OX1 3QJ, UK 4 - Institut für Mittelenergiephysik, ETH-Hönggerberg, CH-8093 Zürich, Switzerland 5 - Lamont-Doherty Geological Observatory, Columbia University, Palisades, New York 10964, USA 6 - Research Laboratory, British Museum, London WC1B 3DG, UK Access Denied Your access to the NCBI website at gov has been temporarily blocked due to a possible misuse/abuse situation involving your site.