2_Plate_Tectonics[1]

2_Plate_Tectonics[1] - Plate Tectonics 1 2 Plate tectonics...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Plate Tectonics 1 2 Plate tectonics and Continental Drift • Plate tectonic theory began with the idea of continental drift • Continental drift = the continents moved relative to one another; they were not 3 relative to one another; they were not always in their present positions • EVIDENCE??
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 4 Alfred Wegener: Father of "Continental Drift" 5 Evidence for Continental Drift (Wegener et al. ): • Continents fit together like jigsaw puzzle pieces. Modern arrangement ~145 million 6 Marshak (2004, Fig.2.02) ~145 million years ago Ancient - Pangaea
Background image of page 2
3 Evidence for Continental Drift (Wegener et al. ): • Similar Geologic Structure (mtn belts, faults, lithology) found on continents that are currently separated 7 Evidence for Continental Drift (Wegener et al. ): • Similar Geologic Structure (mtn belts, faults, lithology) found on continents that are currently separated Appalachia 8 In Scotland! Evidence for Continental Drift (Wegener et al. ): • Paleoclimate patterns 9
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 Evidence for Continental Drift (Wegener et al. ): • Fossil Evidence (e.g., Glossopteris, mesosaurus) 10 Evidence for Continental Drift (Wegener et al.): Fossil Evidence • Similar fossils on portions of South America, Africa, India, Antarctica, and Australia • Fern (Glossopteris) – large seeds – can’t be distributed by wind 11 • Freshwater and land reptiles – couldn’t cross oceans – no land bridge Evidence for Continental Drift (Wegener et al. ): • Glaciation patterns Flow 12 Striations in rock give direction of glacier movement
Background image of page 4
5 Evidence for Continental Drift (Wegener et al. ): • Glaciation patterns
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/15/2008 for the course GEOL 101 taught by Professor Kendall during the Spring '07 term at Clemson.

Page1 / 19

2_Plate_Tectonics[1] - Plate Tectonics 1 2 Plate tectonics...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online