Sedimentary Rocks Flashcards
1
Q
Breccia (sedimentary)
A
extrusive, formed with ash
2
Q
Chert
A
Conchoidal Fracture, banded agate
3
Q
Conglomerate
A
coarse, rounded particles <2mm, formed by flowing water
4
Q
Dolostone
A
Slower reaction with HCl than calcite, precipitation from seawater
5
Q
Fossiliferous
A
Fossils
6
Q
Limestone
A
inorganic and organic, mostly calcite and aragonite
7
Q
Mudstone
A
Clay particles (<0.05mm) deposited in low energy environments.
8
Q
Potash
A
rock salts that contain potassium
9
Q
Halite
A
Rock salt, 3rd stage of evaporation
10
Q
Sandstone
A
2nd most abundant sedimentary rock, poorly sorted to very well sorted, sharp edges. Quartz, Feldspar, Lithic fragments
11
Q
Shale
A
Fine grains, clay, brittle, deposited in quiet currents
12
Q
Kaolinite
A
Clay mineral, sheet silicate
13
Q
Quartzite
A
Metamorphism of quartz, non-foliated
