Chapter 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 of erosion
What does it mean if clasts are being transported
being moved from one location to another
What does it mean if clasts are being deposited
being put in
Define pore space
a space found between clasts
Define compaction
where clasts stick together due to wight on top of it
Define cementation
minerals precipitate slowly out of a water solution and crystallize
How are sedimentary rocks formed
start with clasts, then they get compacted, then water flows through, then they get cementated together
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, and clay/mud
Which clast size would be deposited first
gravel(the heavier material or mineral)
What are 4 common detrital sedimentary rocks
conglomerate, sandstone, siltstone, shale
How are chemical sedimentary rocks formed
formed from water that contains dissolved solids. Mineral crystals precipitate out of a solution through evaporation
If sedimentary rocks contain remains of living organisms what are they called
biochemical sedimentary rock
