chapter 26.3 Flashcards
define clasts
small rock and mineral fragments
what types of erosion are rocks on earths surface exposed to
water, wind, and other forces
what does it mean if clasts are being transported
its being moved from one location to another
what does it mean if clasts are being deposited
its being dropped off
define pore space
free space between mineral grains
define compation
clasts stick together due to weight on top of it
define cementation
minerals precipitate slowly out of a water solution and crystallize in the space between clasts
how are sedimentary rocks formed
clasts get compacted water flows through the pore spaces then they get cemented together
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
which clast size would be deposited first
gravel(heavier material)
what are 4 common detrital sedimentary rocks
conglomerate, sandstone, and siltstone
how are chemical sedimentary rocks formed
water that contains dissolved solids mineral crystals precipitate out of solution of evaporation
if sedimentary rocks contain remains of living organisms what are they called
biochemical sedimentary rocks
