Slide 1 Slide 2 FOSSILSFOSSILS Slide 3 In 1869, John Wesley Powell led a pioneering expedition through the Grand Canyon. Powell, who later went on to head the U.S. Geological…

Slide 1A few sample MC on metamorphic rocks…. Marble is a metamorphic rock that forms from __________? A. granite B. limestone C. sandstone D. shale Answer = B (page 193)…

Slide 1Earth Science Geologic Time Chapter 11 Slide 2 Historical notes Catastrophism Landscape developed by catastrophes James Ussher, mid-1600s, concluded Earth was only…

Slide 1Absolute and Relative Slide 2 A numerical (or "absolute") age is a specific number of years, like 150 million years ago. A relative age simply states whether…

Slide 1Earth Science, 12e Geologic Time Chapter 11 Slide 2 Historical notes Catastrophism Landscape developed by catastrophes James Ussher, mid-1600s, concluded Earth was…

1. Geologic time 2. Geologic TimeGeologic time scaleRelative dating principlesAbsolute dating w/radioactivityCorrelation of rock layers  3. Relative Geologic…

Slide 1SGES 1302 INTRODUCTION TO EARTH SYSTEM LECTURE 9: Principles of Relative Dating Slide 2 2 Lecture 9: GEOLOGIC TIME SCALE: Principles of relative dating Slide 3 3 Geologic…

Slide 1 Warm Up 1/10/08 1. 1. Fossils are the ____. a. oldest layers of rock in a region b. objects that people of long ago left behind as artifacts c. living creatures with…

© 2012 Pearson Education, Inc. Historical notes Catastrophism Landscape developed by catastrophes James Ussher, mid-1600s, concluded Earth was only a few thousand years…

Geologic Time Interpreting Earth history is a prime goal among scientists. Geologists seek clues from the rock record. The history of Earth needs a calendar. The Geologic…