sedimentary rocks Flashcards
1
Q
conglomerate
A
terrigenous-clastic detrial greater than 2mm sub rounded poorly sorted lithics beach, river high energy
2
Q
chert breccia
A
marine-clastic detrial greater than 2mm angular poorly sorted quartz sub marine fan - high energy
3
Q
limestone breccia
A
marine-clastic detrial greater than 2mm angular poorly sorted calcite sub marine fan - high energy
4
Q
quartz sandstone hematite cement
A
terrigenous-clastic detrial bet 1/16 and 2 mm rounded well sorted quartz hematite beach, river medium energy
5
Q
quartz sandstone quartz cement
A
terrigenous-clastic detrial bet 1/16 and 2 mm rounded well sorted quartz breach, river medium energy
6
Q
claystone
A
terrigenous-clastic detrial smaller than 1/256 sub rounded well sorted clay minerals off-shore marine, lake - low energy
7
Q
lithic sandstone
A
terrigenous-clastic detrial bet 1/16 and 2mm poorly sorted sub rounded lithics beach, river - medium energy
8
Q
feldspathic sandstone
A
terrigenous-clastic detrial bet 1/16 and 2mm poorly sorted sub rounded feldspars beach, river - medium energy
9
Q
oolitic limestone
A
chemical-biochemical
calcite
spheric
shore-line, warm water, constant wave motion
10
Q
crystalline limestone
A
chemical
calcite
crystals
shallow marine, warm water
11
Q
crinoidal limestone
A
biological calcite disk shallow marine, warm water normal salinity and temperature
12
Q
chalk
A
biochemical
calcite
shallow marine
13
Q
chert
A
biochemical
quartz
shallow marine
14
Q
coal
A
biochemical
frags of plant matter, carbon
bog, swamp, lake
