Exploring abrupt climate change and pandemic induced by comets and asteroids during human history

February 2012

Restored from the library fire 1/12/20
  One of the many fun things about blogging is that ideas, speculation, and research will often come in “over the transom” from readers. I was recently contacted by Mr. Carl Blanchard with what appears to be long simmering evidence of an Alaskan mega-tsunami at our favorite time period, the Pleistocene-Holocene transition. It would…
At the end of the Pleistocene a Younger Dryas “black mat” was deposited on top of the Pleistocene sediments in many parts of North America. A study of the magnetic fraction (~ 10,900 ± 50 B.P.) from the basal section of the black mat at Murray Springs, AZ revealed the presence of amorphous iron…
 
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