101 American Geo-Sites you've gotta see geology 5 million years ago as

5 million years ago as postulated in a new paper based on original research on possible local effects of the Eltanin asteroid impact

Highlights little known

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101 American Geo-Sites you've gotta see geology 5 million years ago asRocks racing across a lakebed in Death Valley. Perfectly preserved 36 million year old tsetse flies in Colorado. Dinosaur trackways cemented into ancient floodplains in Connecticut. A gaping rift in the Idaho desert. What do these enigmatic geologic phenomena have in common? Besides initiating a profusion of head scratching over the years, these sites of geologic wonder appear side by side, for the first time, in a single publication.