Chapter11.pdf - Chapter11 Asthenosphere Plastic-like layer of earth on which the lithosphere plates air bladder and movement around-susceptible to slow

Chapter11.pdf - Chapter11 Asthenosphere Plastic-like layer...

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Chapter11 Asthenosphere Plastic-like layer of earth on which the lithosphere plates air bladder and movement around-susceptible to slow convective currents in these hotter (less dense) cloth -pockets of increased heat from radioactive decay -less rigid region of the mantle - slow movement disturbs the gall and causes folding magma molten rock and roll beneath the surface types of home plate boundaries 1) divergent 2)convergent triad ) transform Eastern Malayo-Polynesian - oceanic convergent bounds subduction geographical zone and deep ocean trench -sustained activity track to: ISLAND ARCS Iceland is a hotspot as well Sea-Floor Spreading when two diverging lithospheric tectonic plateful on the ocean storey seperate . As the two plates movement apart from each other, (Cm per year) lava hardens to create new insolence . is the hydrologic cps an exogenic or endogenic process? EXOGENIC --erosion/weathering wears the earth down divergent bound are likely to occur at mid ocean ridges yet a few occur on the continent Great RIFT VALLEY (crust is rifting apart) volcanic electric discharge : explosive eruption -convergent bounds during OCEANIC-CONTINENTAL transform fault the apparent motion is one horizontal displacement -no new encrustation is formed or old crust sub ducted three types of rock:
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igneous: melted (flaming formed)sedimentary: sediments (settled out) --layered metamorphic: changed rock (usually from hotness or pressure, sometimes from fluid ) Geologic hertz
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