final exam 2 Flashcards
lithosphere
rigid
contintal
felsic
oceanic
mafic
minerals
naturally occuring inorganic solid with definite cheical composition and crystaline structure
rocks
aggreates of minearls
divergent plate boundaries
new sea floor
mid atlatic ridge
convergent
continental vs continental=mountains
continental vs oceanic=trench and volcano
oceanic vs oceanic=trech and volcano
transform
slide past eachother
isostacy
glaciers or land masses causing depression in crust.
effects of plate techtonics today
ring of fire - volcanoes 95% at plate boundaries earthquakes oceanic crust mountains isostacy
types of volcaoes
cinder cone shield composit flood basalts caldera
hot spots
parts where mantle seeps through to crust
orogenesis
mountain building
basin and range
normal faults
earthquakes
quick release of stored potential energy into motion
richter scale=log scale
physical weathering
unloading thermal explansion frost cracking root intrusion wetting and dyring
chemical weathering
osidation
dissolution=karst topography
hydrolisis=dissocles ions or new minerals form
increase in temp adn percipitation increases chemical weathering
controls of chemical weathering
chemical reactions-easily remove ions
increase temp + percipitation= increase in chemical weathering
rock type
surface area