Slide 1How do we determine geologic age? 1.Uniformitarianism = the processes that shape Earth have not changed. Slide 2 Relative Age 2. Law of Superposition = rocks at bottom…

Slide 1Ch. 23.6: Interpreting the Rock Record OBJECTIVE: Use principles of relative and absolute dating to determine a sequence of events (climate, tectonic, & environmental)…

Slide 1Geologic Time Marble demo Some Index Fossils Coin Toss Sheet Color Copies of Expected Values for X 2 in homework Time Scale.doc Slide 2 Determining geological ages…

Slide 1Warm Up, September 24 th, 2013 1) In the northern hemisphere, the day of the year with the longest time between sunrise and sunset occurs on which continent? (a) Europe(b)…

Slide 1 Slide 2 Determining geological ages Relative ages – placing rocks and geologic events in their proper sequence, oldest to youngest. Absolute dates – define the…

Slide 1GY1004 TEST WEATHERING SOILS AND LANDFORMS Thursday 17 February BENNETT F75B11:30 AND 12:05 See 1 st year notice board Slide 2 The test on Thursday is compulsory.…

Slide 1Constructive and Destructive Forces Warm Up: Why should we worry about Yellowstone? Justify your Answer. CW: 1)Warm Up 2)Constructive and Destructive Forces Notes…

Slide 1 Chesapeake Bay Crater Montgomery College Planetarium at Takoma Park/Silver Spring By Dr. Harold Williams http://montgomerycollege.edu/Departments/planet/ Slide 2…

Slide 1 The Rock Record: Determining Relative Age Chapter 8 Slide 2 Rocks Tell a Story!!! Slide 3 How do we know what happened? 1.Relative Dating – tells which one is older,…

Slide 1 Slide 2 Relative Dating and Sequencing Relative vs. Absolute Time Laws Unconformities Correlating Geologic Cross Sections Slide 3 Relative Time: Ages of events are…