Chapter 10: Early Paleozoic Events
1. The early Paleozoic encompasses which three time periods?
2. In one sentence, how can one sum up the Paleozoic?
3. What are the three factors that affected the Paleozoic climate?
Historical Geology - Geol 102
1. The Archean began 4.6 billion years ago and ended 2.5 billion years ago.
2. What are the three lines of evidence for the big bang theory that are explained by an expanding
1. The galaxies are r
Cross Section Exercise
For each block diagram, label the rock units with numbers (1 being the oldest) and geologic
events with letters (A, B, C, ect.). Then explain the sequence of events starting with the oldest.
Remember to correctly identify all unconf
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CHAPTER NINE: Proterozoic: Dawn of a More Modern World
A. The PaleoProterozoic started 2.5 billion years ago and ended 540 million years ago
Earths first known large continent was called Laurentia
For most of earths history Laurentia was cov
Chapter 16: Life in the Cenozoic
* The Cenozoic Era is sometimes called the Age of
- During the Cenozoic, mammals
dominate the Earth,
much as reptiles
had done during the
* A spectacular adaptive radiation of mammals
Historical Geology Geol 102
1. The late Paleozoic consists of what 4 time periods:
2. What does thin-skinned tectonics mean?
3. The Antler orogeny occurred between Laurentia and _
A. Did this orogeny occu
Chapter 11: Late Paleozoic Events
* Late Paleozoic in North America: Devonian,
Mississippian, Pennsylvanian, and Permian
* Late Paleozoic Everywhere else: Devonian,
Carboniferous, and Permian
* During the Late Paleozoic, the land was
Chapter 8: The Earliest Earth: 2,100,000,000 years of
the Archean Eon
* The Archean Eon is the oldest unit on the geologic time scale. It began 4.6 billion years ago and ended 2.5
billion years ago
- It lasted for 2.1
Geology Notes (Chapters 1, 2, 3, 4, 5, 6, 7 Exam 1)
Three most pervasive themes in the history of Earth are:
1. Deep time
2. Plate tectonics
3. Biologic evolution
Why study geology? Looking at the past helps us see the future.