Slide 1Communicating and Learning About Global Climate Change: Opening Remarks John P. Holdren Director, The Woods Hole Research Center Teresa & John Heinz Professor…

Slide 1Ocean Formation How did the oceans form?? Slide 2 Formation of the Ocean Earth is approximately 4.6 Billion Years Old Oceans formed 2 possible ways: –Comets –Volcanism…

Slide 1Ocean Formation How did the oceans form?? Slide 2 Formation of the Ocean Earth is approximately 4.6 Billion Years Old Oceans formed 2 possible ways: Comets Volcanism…

Slide 1Geological Time - really, really, really long! Motion pictures are generally projected at 32 frames per second. Therefore, each frame (image) is on the screen for…

Slide 1geologic time Slide 2 time is critical for geologic processes Rockies and Alps are ~3000 m tall Atlantic Ocean is ~5000 km across for comparison: fingernail grows…

Slide 1GEOLOGIC TIME Slide 2 Rocks Record Earth History Discovering Earths History Rocks record geological events and changing life forms of the past. We have learned that…

Slide 1Rock/Mineral Exam – Next Week Take advantage of the help sessions. Samples on the exam will not be the same samples you saw in lab, so memorizing them is not useful.…

Slide 1Systematics and Phylogeny Chapter 25 BCOR 012 March 19 and 21, 2007 Slide 2 I. The Fossil Record and Geologic Time The fossil record is written in sedimentary rocks…

Slide 1Grand Canyon in Arizona (stratification, bedding) stratification, bedding, stratum (strata) Rock Record and Geologic Time Slide 2 Timescale (Relative) Slide 3 Timescale…

Slide 1Geologic time Slide 2 Geologic Time Geologic time scale Relative dating principles Absolute dating w/ radioactivity Correlation of rock layers Slide 3 The relative…