26.3 Flashcards
define clasts
small rock and mineral fragments
what type of erosion are rocks on Earth’s surface exposed to
water, wind, and other forces
what does it mean if clasts are being transported
moved from one location to another
what does it mean if clasts are deposited
being put in or brought in
define pore space
the empty space in between the grains
define compaction
clasts stick together due to the weight of overlying material
define cementation
Minerals precipitate slowly out of a water solution and crystallize in the spaces between clasts
how are sedimentary rocks formed
clasts get compacted water flows through the pore spaces causing cementation
what is another name for clasts
Detritus
what are sedimentary rocks called that are mostly made of clasts
detrital sedimentary rocks
what is the decreasing size of clasts
gravel, sand, silt, or clay/ mud
which clasts size would me deposited first
gravel (its heavier)
what are 4 common detrital sedimentary rocks
shale, siltstone, sandstone, and conglomerate
how are chemical sedimentary rocks formed
water that contains dissolved solids, mineral crystallizes precipitate out of a solution through evaporation
if sedimentary rocks contain remains of living organisms what are they called
biochemical sedimentary rocks
