A Short Report on the Excavation in two Sites at the Eastern Part of the Zāyandeh-Rud Basin, Kafarved (Kafrood)-Varzaneh Plain, Summer 2018 ;گزارش کوتاه کاوش در دو محوطه در شرق حوضۀ آبریز رودخانۀ زاینده رود، دشت کفرود-ورزنه، تابستان 13976 (original) (raw)

2019, گزارش های هفدهمین گردهمایی سالانه باستان شناسی ایران; Proceedings of 17th Annual Symposium on the Iranian Archaeology

The Department of Archaeology of Art University of Isfahan has set up a new archaeological project in the eastern zone of the Zāyandehrud River basin. The study area is a plain situated on the western fringe of Central Desert between Varzaneh and Kafarved towns, at a distance of 5 to10 km southern the river and about 30 km eastern Gāvkhūni marshland that is the terminal basin of Zāyanderud. This part of zāyanderud basin is relatively unknown and the research project aim to comprehend the settlement dynamic of the region through time and its relation with other part of Iranian plateau. The new systematic survey, carried out during 2018, resulted in the discovery of more than 70 archaeological sites from which 2 has been excavated for understanding the chronology and cultural changes in the area. The preliminary analysis of data and the comparative studies of findings shows that the sites belong to the Bronze Age with a strong connection to the Fars region in Kaftari period (2200-1600 BCE). It should be noted that the surface material in some of the sites point to the fact that the region was also inhabited in other periods. The results of absolute dating (C14) samples are expected in spring 2020 which could refine the suggested date. The study area is important in that it will deepen our understanding of what role Zāyanderud River, as the only semi-permanent river of the central Iranian Plateau, played in the formation and transformation of settlements system and archaeological landscape of Central Iran. Today the region has a semi-arid to arid climate and nearly 90 percent of Gāvkhūni marshland has dried up, however, the high density of settlements at the 3rd and 2nd millennium BCE is an indicator of a different environment and a dramatic climate change. Moreover, as is the case today the high level of underground water and its fast rate of evaporation as well as the salinity of the soil after a long term and intensive cultivation and agricultural activities could be other reasons for deserting the area.

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THE CHERNOBYL FALLOUT IN GREECE AND ITS EFFECTS ON THE DATING OF ARCHAEOLOGICAL MATERIALS

The effects of the fallout from the nuclear reactor accident at Chernobyl have been monitored at various sites to Greece. Here we present the first estimates of gamma dose rates, an essential parameter in the dating of archaeological materials by thermoluminescence (TL) and ESR methods. The dose rates are derived from the long-lived radionuclides of 137Cs, 134 Cs, 1°6 Ru and 144Ce (with t112 >-1 yr). The present dose rates vary between 30 and 60 mrad/yr, but maximum values of around 811 mrad/yr have also been recorded, for ground-surface exposures. These dose rate values must be regarded as very significant to TL and ESR dating of samples from now on and a correction factor should be applied.

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