Slide 1A. Principle of Original Horizontality Most sediment settles out of bodies of water = deposited horizontally Most lava flows are horizontal or slightly tilted on flanks…

Slide 1William Smith, 1815 Geologic map of England, Wales, part of Scotland The Map That Changed the World Slide 2 Slide 3 The relative geologic time scale has a sequence…

Slide 1READING THE ROCK RECORD Slide 2 relative time: events are in sequence, but no actual dates absolute time: identifies actual date of event Slide 3 Most geologic work…

Slide 1When looking down into the Grand Canyon, we are really looking all the way back to the early history of Earth Grand Canyon Chapter 4: Geologic Time Concepts and Principles…

Slide 1Chapter 21 Fossils and Rock Record Slide 2 Vocabulary Uniformitarianism- processes happening today have been happening since Earth formed. (ex. Earthquakes and volcanic…

Slide 118_G435.pps 1 Slide 2 2 Stratigraphy Concepts Related to Subdivision of the Rock Record Slide 3 18_G435.pps 3 Inextricably Related Issues in Geology (that must be…

Slide 1 Changing Materials Slide 2 Contents Useful Products from Oil Useful Products from Metal Ores Useful Products from Rocks Useful Products from Air Representing Reactions…

Slide 1 PSC 121 Prince George’s Community College Reading the Rock Record Slide 2 PSC 121 Prince George’s Community College Rock Layers  Sediments and lava flows form…

Slide 1 The Relative Age of Rocks 10-2 Slide 2 Place in order from youngest to oldest A B C D EF Slide 3 Answers youngest to oldest A B C D E F Slide 4 What is the age of…

Slide 1 Chapter 21 Fossils & the Rock Record Slide 2 Major milestones in life Crawling, walking, potty training (still in progress?), first day of school, first kiss,…