Archaeomagnetic dating services
Artifacts showing disagreement with the seriation chronology are most likely objects in use long after their original firing or the result of contamination of strata from the re-use of previous occupational materials in construction.One specimen appears to confirm the presence of a geomagnetic spike around 1000 BCE previously identified in Syria, Israel, Crete, and Turkey.LOCATIONS to DATE: 1) Lake Mungo, NSW (with Nicola Stern, LTU; Zenobia Jacobs, UOW) 2) Apollo Bay, Victoria (with OAAV, BIOSIS) 3) Yea, Victoria (with BIOSIS) 4) Walpolla and Trawalla, Victoria (with Dr Vincent Clark and Associates) 5) Victorian Volcanics (with University of Melbourne and Museum Victoria) 6) Australian Lake Sediments (With University of Melbourne and Australian National University) OTHER LABS INVOLVED: Geomagnetism Laboratory, University of Liverpool, UK (with Mimi Hill) What is Archaeomagnetic Dating?
Another test has been made using the German reference curve for dating the Austrian archaeological sites, here a systematic shift to older times in the order 30–110 yr occurs.The magnetic mineral assemblage of each sample was also characterized using a comprehensive suite of rock magnetic techniques.Final results were compared with previous archaeointensity studies in the region, and 70% of the magnetically-derived ages agree with the archaeologically-derived dates within a 1σ confidence interval, while 76% agreed within 2σ.However, many sites do not contain sufficient or suitable materials for radiocarbon analysis, requiring the need for an alternative absolute dating tool.
Archaeomagnetic dating provides such an alternative. Excavations at Tell Mozan (Bronze-Age Urkesh) in northeastern Syria have revealed evidence for nearly 5000 years of occupation in strata containing a variety of diagnostic ceramic artifacts, which form the basis for a well-established relative site chronology.The validity of this curve will then be tested using new Austrian data.