chapter 26.3 Flashcards
Define clasts
A 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?
It’s being moved form one location to another location
What does it mean if clasts are being deposited?
Being dropped off
Define pore space
Empty spaces between clasts
Define compaction
Is where clasts stick together when weight is put on top of it
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?
We start with clasts, they get compacted, water flows threw 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 rock
What is the decreasing size of clasts?
gravel, sand, slit, slay, mud
Which clasts size would be deposited first?
(gravel) heavy substance
What are 4 common detrital sedimentary rocks?
Conglomerate, sandstone, siltstone, shale
How are chemical sedimentary rocks formed?
Water that contains dissolved solids, and mineral crystal precipitate out of a solution and evaporate
If sedimentary rocks contain remains of living organisms what are they called?
Biochemical Sedimentary Rocks
