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.
|
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... |
