GEOG 1HB3 Lecture Notes - Lecture 1: Epicenter, Continental Crust, Oceanic Crust
20 Mar 2018
School
Department
Course
Professor
Document Summary
Water flowing under the glacier, by composition, state and density. By strength: need to know the geologic plate that affects canada juan de fuca, inner core solid. Outer core liquid: mantle solid, lithosphere volcanoes happen here. Asthenosphere almost ice like, doesn"t crack slowly deforms: continental crust is less dense than oceanic crust. Oceanic crust is relatively thinner (is denser than continental crust so when they meet oceanic crust gets dragged underneath: seismic energy, lithospheric plates, geologically active areas, continents are carries along plates. Subduction zones: magma, divergent, convergent, and transform, more dense ocean plates sink and melt, motion or trembling of the ground caused by sudden displacement of rock. Melted magma rises to form volcanoes: eastern is still moving because hot spot stays the same but the plates move, -magnitude. Nature of the local earth materials engineering and contruction practice: mapped according to the epicenter. The focus is directly below the epicenter. 32 times: hanging wall footwall block, 11,600 years.
