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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

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