Documents The Proterozoic Eon CHAPTER 7. Proterozoic- Last chapter of Precambrian time The Proterozoic...

Slide 1 The Proterozoic Eon CHAPTER 7 Slide 2 Proterozoic- Last chapter of Precambrian time The Proterozoic boundary is placed @ 2.5 By, mostly arbitrarily Essentially modern…

Documents Proterozoic sedimentary rocks –in Glacier National Park, Montana The angular peaks, ridges and...

Slide 1 Proterozoic sedimentary rocks –in Glacier National Park, Montana The angular peaks, ridges and broad valleys –were carved by Pleistocene and Recent glaciers Proterozoic…