Exam 2 Flashcards
1
Q
Arkose
A
grain size 2mm to 1/16mm, poorly sorted, contains quarts >25% feldspar, found in alluvial fans
2
Q
Conglomerate
A
Clastic sedimentary rock, rounded clasts >2mm in diameter, found in mountain streams (coarse), alluvial fan and river
3
Q
Coquina
A
Sedimentary rock made from shell fragments of marine organisms, characteristic of limestone
4
Q
Gypsum
A
Soft sulfate material, forms due to evaporation, an evaporite
5
Q
Halite
A
Rock salt
6
Q
Peat
A
Organic material, dark, spongy
7
Q
Travertine
A
Calcium carbonate precipitated from ground water (hot springs)
8
Q
Limestone
A
Composed of accumulation of precipitated calcium carbonate, fine grained, coquina, fossilferous, chalk, oolitic
