EESA06H3 Lecture 7: Detailed Lecture #7 Notes
Document Summary
Week 8: lecture #7: monday february 23, 2015. Cross section tectonic setting (like a subduction zone) *** diagram on exam*** Exactly the same as in the textbook. Recycling of the pacific rim : getting rid of oceanic crust and producing continental crust, as of products of melting ascending slab and mechanisms and so on. 2: new zealand, indonesia, japan, alaska, british columbia, california, chile. Deep water trenches, which mark the descending oceanic plate, where"s it"s going down the continent, trenches reflect the bending of the ocean floor as its driven down below the continent. Focus of the eq, where it occurred deep down. This is an island arc, get island in the middle of ocean as a result of subduction of one oceanic plate under another. Volcanoes come up and die, produces island arcs, forming island. Melting oceanic crust made out of basalt, adding sea water and sediment, produce a rock type called ammonites.
