An extraterrestrial event recorded in Manitoba at the end of the last Ice Age

A sequence of sediments deposited in a glacial lake along the margin of the retreating Pleistocene ice sheet in southwestern Manitoba spans thousands of years and contains evidence for an extraterrestrial event. The sediments, pollen, organic macrofossils, peat, magnetic microspherules, nanodiamonds, and elements like Iridium and Platinum reveal a complex history of the region at the end of the last Ice Age.  Come hear how this history is linked to catastrophic meltwater drainage from the Canadian Prairies and overflow from glacial Lake Agassiz, which was punctuated by an extraterrestrial event that abruptly and dramatically altered the Earth’s oceans and climate.

 

Presented by: James Teller  Professor Emeritus Department of Geological Sciences, University of Manitoba