Rock Cycle
Rocks formed from lava are...
extrusive, or volcanic rocks
what are the two characteristics of sedimentary rocks
clastic and non-clastic
name 3 types of igneous textures
Aphanitic,Phaneritic, Glassy texture, Porphyritic texture, Vesicular texture, Amygdaloidal texture, Pyroclastic texture
what are the two metaphoric textures?
Foliated and non-Foliated
materials can enter the rock cycle when...?
magma rises from the mantle
Non-Clastic rocks will either:
react with HCL (Limestone or Dolostone),
taste salty (Potash) or
be very lightweight (Coal)
what type of minerals are igneous rocks primarily composed of?
silicate minerals
Platy minerals become aligned due to pressure and temperature
Foliated
cementation causes what kind of rocks?
sedimentray
name 3 examples of sedimentary rocks
shale, sandstone, siltstone, breccia, conglomerate, coal
the rate of cooling affects the___in igneous rocks
crystal size
name 3 types of metamorphic rocks
slate, gneiss, Quartzite, marble
heat and pressure creates what type of rocks?
metamorphic
Non- clastic rocks are grouped based on origin of the components:
Biochemical rocks
Organic rocks
Chemical rocks
Rocks form from magma at depth are..
intrusive, or plutonic rocks
Rocks lack platy minerals or are made of a single type of mineral and the main stress is HEAT.
Non-Foliated
when magma is cooled ____ is created
Igneous rocks
what are clastic sedimentary rocks made out of?
mechanically broken rock fragments of other rocks, known as clasts that are set in a finer matrix
name 3 types of igneous rocks
granite, diorite, gabbro, basalt, pumice
how are metamorphic rocks formed?
pre-existing igneous, sedimentary or metamorphic rocks that are transformed under heat and pressure conditions