26.3 Flashcards
define clasts
small rock and mineral fragments
what types of erosion are rocks on Earth’s surface exposed to?
water, wind, and other forces
what does it mean if clasts are being transported?
they go to a new location
what does it mean if clasts are being deposited?
clasts are dropped off
define pore space
The empty space in between the grains
define compaction
the process by which 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 in a process
how are sedimentary rocks formed?
by compaction and cementation
what is another name for clasts?
Detritus
what are sedimentary rocks called that are mostly made of clasts?
detrital sedimentary rock
what is the decreasing size of clasts?
gravel, sand, silt, or clay
what clast size would be deposited far?
gravel
what are 4 common detrital sedimatary rocks?
breccia, sandstone, siltstone, and shale
how are chemical sedimetary rocks formed?
from water that contains dissolved solids
if sedimetary rocks contain remains of living organisms what are they called?
biochemical sedimentary rocks
