chapte r6.3 Flashcards
define clasts
small rock and minerals fragments
What types of erosion are rocks on earths sureface exsopsed to?
water,wind,and forces
what does it mean if clasts are being trasported?
they go to a new location
what does it mean if clasts are being deposited?
clasts are dropped off
define pore space.
they empty space in between the grains
define compaction
the process by which clasts stick together due to weight of overlying materials
define cementation
minerals percipitate slowly out of water solution and crystallize in the space between clasts inprocess.
how are sedimentary rocks formed?
by compaction and cementation
what is another name for clasts?
detritus
what are sedimentary rocks called that mostly made of clasts?
detrital sedimentary rocks
what is the decreasing sizeof clasts?
gravel,sand,silt,or clay
which clast size would deposited first?
gravel
what are 4 commondetrial sedimentary rock?
breccia,sandstone,siltstone,and shale
how are chemical sedimentary rocks fomed?
from water that contains dissolved solids
if sedimentary rocks contain remains of living organisms what are they called?
biochemical sedimentary rocks