Publikationen

Dating a small impact crater

Autor(en)
A. Losiak, E. M. Wild, W. D. Geppert, M. S. Huber, A. Joeleht, A. Kriiska, A. Kulkov, K. Paavel, I. Pirkovic, J. Plado, P. Steier, R. Vaelja, J. Wilk, T. Wisniowski, M. Zanetti
Abstrakt

The estimates of the age of the Kaali impact structure (Saaremaa Island, Estonia) provided by different authors vary by as much as 6000years, ranging from similar to 6400 to similar to 400 before current era (BCE). In this study, a new age is obtained based on C-14 dating charred plant material within the proximal ejecta blanket, which makes it directly related to the impact structure, and not susceptible to potential reservoir effects. Our results show that the Kaali crater was most probably formed shortly after 1530-1450 BCE (3237 +/- 10 C-14 yr BP). Saaremaa was already inhabited when the bolide hit the Earth, thus, the crater-forming event was probably witnessed by humans. There is, however, no evidence that this event caused significant change in the material culture (e.g., known archeological artifacts) or patterns of human habitation on Saaremaa.

Organisation(en)
Isotopenphysik
Externe Organisation(en)
Polish Academy of Sciences (PAS), Stockholm University, University of the Free State, University of Tartu, Saint Petersburg State University, University of Belgrade, Albert-Ludwigs-Universität Freiburg, Washington University in St. Louis
Journal
Meteoritics and Planetary Science
Band
51
Seiten
681-695
Anzahl der Seiten
15
ISSN
1086-9379
DOI
https://doi.org/10.1111/maps.12616
Publikationsdatum
04-2016
Peer-reviewed
Ja
ÖFOS 2012
105102 Allgemeine Geophysik, 103014 Kernphysik
Schlagwörter
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/dating-a-small-impact-crater(f624f8d4-af08-4998-81be-4400b6e964b5).html