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Chapter 16: Problem 3

When and where was the first glaciation of the Cenozoic?

Short Answer

Expert verified
The first glaciation of the Cenozoic era took place in Antarctica during the late Eocene to early Oligocene epochs, approximately 34 million years ago.

Step by step solution

01

Understand the Cenozoic era

The Cenozoic era is the most recent of the three major subdivisions of the Phanerozoic Eon, spanning from 66 million years ago to the present day. It is marked by significant changes in Earth's climate and geography, leading to the development of new ecosystems. During this era, numerous glaciations occurred.
02

Identify the first glaciation of the Cenozoic

The first major glaciation of the Cenozoic era occurred during the late Eocene to early Oligocene epochs, around 34 million years ago.
03

Determine the location of the first glaciation

The first Cenozoic glaciation took place in Antarctica, which began to accumulate ice due to its shifting position and the formation of the Antarctic Circumpolar Current that isolated the continent, leading to a much colder climate. #Conclusion#: When and where was the first glaciation of the Cenozoic? The first glaciation of the Cenozoic era occurred during the late Eocene to early Oligocene epochs, approximately 34 million years ago, in Antarctica.

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