Cenozoic orogenic events Flashcards
1
Q
what was happening to the Cenozoic Plate tectonics in the Eocene
A
- Atlantic ocean separated Europe and Africa from the Americas
2
Q
what was happening to the Cenozoic Plate tectonics in the Miocene
A
India collided with Asia
African plate initiated tectonic activity
Rifting began in Africa
3
Q
Define the Alpine-Himalayan Orogenic belt
A
Caused by the northward movement of African and Arabian plates into Eurasia
4
Q
Define the Andes
A
Active volcanoes that result from the subduction of the oceanic Nazca plate under South American Plate
5
Q
what is so different about the Laramide Orogeny
A
- it was further inland
- igneous activity not common
- deformation mostly vertical
6
Q
what is the Zuni sequence
A
The Zuni epeiric sea regressed
-terrestrial deposits
7
Q
What is the Tejas Sequence
A
- had at least 8 transgressive-regressive cycles
