Examlex
Ozone
Crustal Extension
The process by which the Earth's crust is stretched and thinned, often associated with the formation of rift valleys and basins.
Mesozoic
An era of geological time from about 252 to 66 million years ago, known for the rise of dinosaurs and significant volcanic activity.
Cenozoic
The current geological era, beginning around 66 million years ago and characterized by the significant development and spread of mammals on Earth.
Ancestral Rockies
Refers to a mountain range that existed in the western United States during the late Paleozoic era, before the formation of the modern Rocky Mountains.
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