ROCKS WEEEEEEEEEEEEEEEEE Flashcards
(28 cards)
-phaneritic
-felsic
Granite
-phaneritic
-intermediate
diorite
-phaneritic
-mafic
gabbro
-phaneritic
-ultramafic
peridotite
-aphanitic
-felsic
rhyolite
-aphanitic
-intermediate
andesite
-aphanitic
-mafic
basalt
-porphyritic
-felsic
porphyritic rhyolite
-porphyritic
-intermediate
porphyritic andesite
-porphyritic
-mafic
porphyritic basalt
-vesicular
-felsic
pumice
-vesicular
-mafic
scoria
-glassy
-felsic
obsidian
-clastic
-coarse
-Rounded pebble-sized clasts with
various smaller clasts cemented
together
conglomerate
-clastic
-coarse
-Angular pebble-sized clasts with
various smaller clasts cemented
together
brecca
-clastic
-medium sand-sized grains
-Quartz dominated matrix; rounded,
well-sorted quartz grains cemented
together
quartz sandstone
-clastic
-medium sand-sized grains
-Quartz and feldspar mixture
arkose
-clastic
-fine grains
-Made up of clay minerals that are fine-
grained; layers may appear laminated
shale
fossiliferous limestone
oolitic limestone
crystalline limestone
coquina/skeletal packstone