Mesozoic
(Chapter 15)
Breakup of Pangaea
- Triassic
- Initial Rifting between Laurasia and Gondwana
Figure 15.4, p. 405
- Newark Group-Fault Block Basins
- Igneous activity
Figure 15.12, p. 412
- Evaporites - Tethys Sea
Figure 15.5, p. 405
- Jurassic
- Separation of Gondwana continents
- Late Jurassic
- Separation of South America from Africa
Figure 15.6a, p. 406
Figure 15.3, p. 404
- Cretaceous
- Continued separation of Gondwana continents
Figure 15.6b, p. 406
- Global rise in sea level due to accelerated rifting resulting in flooding of craton
Figure 4.15, p. 84

Figure 15.11, p. 411
- Cenozoic
- Separation of Antarctica from Australia
- Final separation of North America from Europe
Western North America
Figure 15.21, p. 420
- Sonoma Orogeny
- Late Permian to Early Triassic
- Collision of island arc with western margin of craton
- Nevadan Orogeny
- Middle-Late Jurassic
- Franciscan Group
- trench sediments
- melange
- Great Valley Group
Figure 15.20, p. 419
- Late Jurassic-Cretaceous
- Granite-granodiorite batholiths
- Coast Range, Idaho, Sierra Nevada and Southern California Batholiths
fig. 15.22, p.420
- decrease in age of batholiths from west to east
- decrease in angle of subduction
- Sevier Orogeny
- Cretaceous
- low angle thrust faults
last updated 4-12-99
All original material copyright (c) 1998 by Annabelle Foos. All rights reserved.