טוען...
Absence of geochemical evidence for an impact event at the Bølling–Allerød/Younger Dryas transition
High concentrations of iridium have been reported in terrestrial sediments dated at 12.9 ka and are interpreted to support an extraterrestrial impact event as the cause of the observed extinction in the Rancholabrean fauna, changes in the Paleoindian cultures, and the onset of the Younger Dryas cool...
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| Main Authors: | , , , , , , , , |
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| פורמט: | Artigo |
| שפה: | Inglês |
| יצא לאור: |
National Academy of Sciences
2009
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| נושאים: | |
| גישה מקוונת: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2799824/ https://ncbi.nlm.nih.gov/pubmed/20007789 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1073/pnas.0908874106 |
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