Rock Groups
Formed from molten rock cooling and crystallizing
What is Igneous Rock?
forms under the surface
What is intrusive?
Banding of grains and crystals occurs
What is foliated?
Squeezes sediment together
What is compaction?
The type of weathering that breaks rocks into smaller pieces by physical means
What is mechanical?
Formed from applying heat and pressure
What is metamorphic rock?
forms above the surface
What is extrusive?
Grains and crystals appear messy and overlapping
What is non- foliated?
Glues sediments/pieces together
What is cementation?
pumice, scoria, gabbro, basalt, granite, and rhyolite are examples
What is igneous rock?
Formed from compaction and cementation
What is sedimentary rock?
dark-colored due to lots of iron and low silica
What is basaltic?
Composed of bits and pieces of dead ancient organisms
What is organic?
Moves sediment/particles from one place to another
What is erosion?
Gneiss, schist, slate, phyllite, marble, and quartzite are examples.
What is metamorphic rock?
Formed from weathering and erosion
What is sedimentary rock?
light-colored due to lots of silica and low iron
What is granitic?
Composed of bits and pieces of other rocks
What is clastic?
Breaks down rocks into smaller pieces
What is weathering?
Bituminous coal, rock salt, sandstone, siltstone, shale, conglomerate and limestone, and chalk are examples
What is a sedimentary rock?
can form a metamorphic rock
What is igneous, metamorphic and sedimentary?
Formed from cooling lava
What is extrusive?
Composed of bits and pieces of sediment that came out of a mineral solution
What is chemical?
Sediments pile up in a certain area
What is deposition?
Rusting and acid rain are considered this type of weathering
What is chemical weathering?