|
|||||
|
|
Dating of the Reo site (Island of Saaremaa, Estonia) with silicate and iron microspherules points to an exact age of the fall of the Kaali meteorite |
|
| Authors: | Tanel Moora Anto Raukas Wojciech T. J. Stankowski |
| Affiliation: | 1. Institute of History, Tallinn University, R????tli 6, 10130, Tallinn, Estonia 2. Institute of Ecology, Tallinn University, Uus-Sadama 5, 10120, Tallinn, Estonia 3. Institute of Geology, Adam Mickiewicz University, Makow Polnych 16, 61-606, Poznan, Poland |
| Abstract: | Pollen analyses and radiocarbon dates from the bottom sediments in the Kaali main crater suggested that the crater group is at least 4000?C5000 years old. Investigations of silicate impact micro-spherules in surrounding mires (Raukas et al. 1995) put the age about 7500?C7600 yr BP. Recently we found both silicate and iron microspherules from organic sediments below well-dated beach ridge in Reo site what supports the conclusions that the most realistic age of the Kaali craters is 7600±50 14C BP (8335?C8537 cal BP) and the meteorite fall was from SSE to NNW. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |