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{{ attachment:66MYA.jpeg }} || {{ attachment:66MYA.jpeg }} || The impact zone was shallow ocean. Would a different impact longitude (onto land, or into deeper oceans) cause different results? Follow the impact latitude east or west, and imagine... ||

Walter Alvarez

A Most Improbable Journey

A Big History of Our Planet and Ourselves

Multco St Johns, 550 A4739m 2016


Big History is traditional human history expanded into evolution, paleontology, and cosmology.

  • Chapter 1, Arroyo el Minbral in Yucatan with Sandro Montanari, Jan Smit and Nicola Swinburne, discovering a 1 to 3 meter thick layer of sand enclosed by the K-T boundary, evidence of a huge nearby tsunami.

66MYA.jpeg

The impact zone was shallow ocean. Would a different impact longitude (onto land, or into deeper oceans) cause different results? Follow the impact latitude east or west, and imagine...

MoreLater

WalterAlvarez (last edited 2019-11-13 22:41:16 by KeithLofstrom)