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GE141: Earth and Environmen t

GE141: Earth and Environmen t. The essentials. Instructor: Dr. Sullivan Office : Mudd 206 E-mail : wasulliv@colby.edu Phone : 859-5803 Text — Geology: An introduction to Physical Geology, 4th edition by Chernikoff and Whitney

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GE141: Earth and Environmen t

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  1. GE141: Earth and Environment

  2. The essentials • Instructor: Dr. Sullivan • Office: Mudd 206 • E-mail: wasulliv@colby.edu • Phone: 859-5803 • Text — Geology: An introduction to Physical Geology, 4th edition by Chernikoff and Whitney • Lab Manual — Laboratory Manual for Geology 141 by Rueger and Nelson

  3. Buy a lab manual before your first lab meeting next week

  4. How you will be graded

  5. Exams First one-hour exam: Wednesday, March 12 Second one-hour exam: Wednesday, April 16 Final exam: Wednesday, May 14, 6:00PM College policy is that no exams will be given early for any reason.

  6. How to do well • Come to class. 2. Buy the textbook and the lab manual. 3. READ the textbook and the lab manual. 4. Go to lab. 5. Do the assignments in lecture and lab. 6. Start studying for exams at least a week beforehand

  7. Big Idea 1: Earth scientists use repeatable observations and testable hypotheses to understand and explain our planet.

  8. Big Idea #2: Earth is 4.6 billion years old.

  9. Big Idea #3: Earth is a complex system of interacting rock, water, air, and life.

  10. Big Idea #4: Earth is continuously changing.

  11. Big Idea #5: Humans depend on Earth for resources.

  12. Big Idea #6: Humans significantly alter the Earth.

  13. Big Idea #7: Natural hazards pose risks to humans.

  14. The tsunami from the 1630 BCE eruption of Mt. Thera may have given rise to the legend of Atlantis.

  15. What about human evolution? 72,000 years ago

  16. Mt. Pinatubo: ~5 cubic km of ash & aerosols into atmosphere Caused global temperature drops, and sunsets were more brilliant

  17. Toba Volcano – 72,000 years ago  280,000 km3 ejected!  1 gigaton tnt explosion!

  18. Based on genetic diversity, it is estimated that all modern humans evolved from only 1000-10,000 individuals following the Toba eruption.

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