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Sedimentary Rocks
FORMED AT OR NEAR SURFACE OF EARTH
Forms when MINERAL CRYSTALS & CLAST OF PLANTS, ANIMALS ARE COMPRESSED OR NATURALLY CEMENTED TG.
Also forms when MINERAL CRYSTAL PRECIPITATE FROM WATER TO FORM ROCKY MASS = ROCK SALT
PROCESS: weathering, erosion, deposition, compaction & cementation
Sediments
FRAGMENTS OF ROCKS
RESULT OF WEATHERING
Clastic Sedimentary
FORMED FROM ERODED PARTS OF OTHER ROCKS
GRAINS, MATRIX & CEMENT: components of clastic rocks

Non clastic sedimentary
EX: Evaporites, precipitates, bioclastic
Evaporites
NON CLASTIC SEDIMENTARY
ROCKS FORMED FROM EVAPORATION OF WATER, LEAVING DISSOLVED MINERALS TO CRYSTALIZE

Precipitates
NON CLASTIC SEDIMENTARY
ROCKS FORMED WHEN MINERALS FROM MINERAL SUPERSATURATED WATERS START TO CRYSTALLIZE AT THE BOTTOM

Bioclastic
NON CLASTIC SEDIMENTARY
ROCK FORMED FROM COMPACTED ORGANIC MATTER
Metamorphic Rocks
FORMED BELOW SURFACE OF EARTH THRU PROCESS OF METAMORPHISM WITH RECRYSTALLIZATION OF MINERALS IN ROCKS due to:
CHANGES IN PRESSURE
CHANGES IN TEMP CONDITIONS
CONTACT AND REGIONAL METAMORPHISM
Contact Metamorphism
HEAT AND REACTIVE FLUIDS AS MAIN FACTORS.
Occurs when a PRE EXISITING ROCK GETS IN CONTACT WITH MAGMA WHICH IS THE SOURCE OF HEAT & MAGMATIC FLUIDS
METAMORPHIC ALTERATIONS AND TRANSFORMATION OCCUR AROUND CONTACT & METAMORPHIC AUREOLE of the intruding magma & rock layers.
Occurs in SMALL SCALE
CREATES NON FOLIATED METAMORPHIC ROCKS

Regional metamorphism
PRESSURE AS MAIN FACTORS
Occurs in AREAS THAT HAVE UNDERGONE CONSIDERABLE AMOUNT OF MECHANICAL DEFORMATION & CHEMICAL RECRYSTALLIZATION during orogenic event which are commonly associated with mounts in belts
Occurs in REGIONAL/LARGE SCALE
CREATES FOLIATED METAMORPHIC ROCKS

Non foliated texture
CONTACT METAMORPHISM
(HEAT)

Non foliated texture
REGIONAL METAMORPHISM
(PRESSURE)

Fossil Fuels
FORMED FROM LIVING PLANTS & ANIMALS THAT EXISTED 500 MILLION YEARS AGO.
When living things died, fell on the ground then accumulated upon layers of earth.
Due to ENORMOUS PRESSURE, THE LAYERS ARE CRUSHED BY WEIGHT OF OVERLYING ROCKS.
Hydrocarbons
FOSSIL FUELS
INTENSE HEAT AND PRESSURE, CHEMICAL REACTIONS CAUSED BY WEIGHT OF PLANTS & ANIMALS
Coal
TYPES OF FOSSIL FUELS
A ROCK FORMED FROM THE DECOMPOSITION OF PLANT LIFE.
EX: Peat, lignite, bituminous, anthracite
Peat
TYPES OF COAL
THE INITIAL STAGE OF THE DEV. OF COAL.
MADE FROM DECAYED PLANT FIBERS
Lignite
TYPES OF COAL
THE “BROWN COAL” THAT IS SOFT AND HAS A WOODY TEXTURE.
Bituminous
TYPES OF COAL
A SEDIMENTARY ROCK THAT CONTAINS IMPURITIES LIKE SULFUR
DARK OR BROWN COLOR AND SOFT.
Anthracite
TYPES OF COAL
METAMORPHOSED INTO ALMOST PURE CARBON.
HARD AND BRITTLE
Oil (Petroleum)
TYPE OF FOSSIL FUELS
MADE FROM DECOMPOSED ORGANISMS THAT WERE OFTEN FOUND IN OCEANS & SEAS
DECOMPOSED ORGANISMS SEDIMENTS ACCUMULATE and are digested over time under PRESSURE AND HEAT, EVENTUALLY INTO LIQUID.
Natural Gas
TYPE OF FOSSIL FUELS
The FORMATION OF THIS FOSSIL FUEL IS SIMILAR TO PETROLEUM
METHANE RISES FROM OIL, the source of this gaseous fossil fuel are ABOVE THE OIL SOURCE