Chapter 26.3 Flashcards
(17 cards)
What are 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?
its being moved from one location to another
What does it mean if clasts are being deposited?
dropped off
What is pore space?
the empty space in between the grains
What is compaction?
the process by which clasts stick together due to the weight of overlying material
What is cementation?
when minerals precipitate slowly out of a water solution and crystalize in the spaces between clasts in a process
How are sedementary rocks formed?
from both compaction and cementation working together
What are sedimentary rocks called that are mostly made of clasts?
deterial sedimentary rocks
What is the decreasing size of clasts?
gravel, sand, silt, clay/mud
What is another name for clasts?
Detritus
Which clast size would be deposited first?
gravel (heavier material)
What are 4 common detrital sedimentary rocks?
conglomerate, sandstone, siltstone,
How are chemical sedimentary rocks formed?
from water that contains dissolved solids, mineral crystallized through something called precipitate out of a solution through evaporation
If sedimentary rocks contain remains of living organisms what are they called?
biochemical sedimentary rock
What are 2 common biochemical sedimentary rocks?
limestone and coal
What are the 3 types of sedimentary
