GEO 305 Lecture 2: Chapter 13
Document Summary
Chapter 13: tectonic process and landforms: plate tectonics, theory that earth"s crust consists of individual plates that move individually and collectively, configuration of the continents b. i. Alfred wegner proposed the continental drift (1912) that today"s continents had broken apart from pangea b. ii. Continental drift is the process that broke up the supercontinent. Pangea and formed into the current configuration of process: the wilson cycle and supercontinents, the continents are split and reunited repeatedly through earth"s history, wilson cycle b. i. Stage 1- embryonic ocean basin: the red sea separating the. Stage 2- young ocean basin: the labrador basin a branch of the. North atlantic lying b/w labrador and greenland b. iii. Stage 3- old ocean basin: includes vast expanse of the north and. South atlantic oceans and the antarctic ocean b. iv. Stage 4a- ocean basin begins to close as continental plates collide and new subduction boundaries form b. v.
