W1 Intro Flashcards
Surface Processes
Geomorphology, Sedimentary Rocks
processes that lead to what we see
Sediment
degree . of rocks through physical, chemical destruction
Sed rocks are % of earths
2% of earths mass
% of sedimentary surface rocks
75% of surface rocks are sedimentary
stroy of sedimentary rock
rocks –> weathers –> clasts -> erosion –> typical clasts –> deposition –> lithification –> then exposure process starts again
erosion
transportation and further weatheering
lithification
is the process in which sediments compact under pressure, expel connate fluids, and gradually become solid roc
clasts
tiny rock fragments
biochemical rocks
shells skeletons of organisms or algee
organic rocks
carbon rick remains of plants and marine organisms
chemical
minerals precipitated directly from water
jointing
breaking / fracture of rock body
first step to being broken down
exfolitation
granitic plutons break along joints . parallel to surface