Download Sedimentary Rocks

Sedimentary Rocks
Osmtann Science
Origins of Sedimentary Rocks
Over time, rocks erode and smaller pieces form. The
pieces are carried by wind and settle somewhere else.
3 Main Types
CLASTIC
• Smaller sediments cemented together
CHEMICAL
• Chemical reactions form new product
ORGANIC
• Dead organic material bound together.
CLASTIC
COARSE GRAINED …FINE GRAINED
CLASTIC
CLASTIC
SANDSTONE: Used in buildings
CLASTIC
SANDSTONE DOORWAY
CLASTIC
SANDSTONE CASTLE
CHEMICAL
SALT: HALITE
from the evaporation of ocean or saline lake waters.
CHEMICAL
HEMATITE: IRON ORE.
Iron and Oxygen combine in solution and deposit as a sediment.
CHEMICAL
IRON
A piece of a banded iron formation, a type of rock that
consists of alternating layers with iron(III) oxide (red) and
iron(II) oxide (grey). BIFs were mostly formed during the
Precambrian, when the atmosphere wasn't yet rich in
oxygen. Moories Group, Barberton Greenstone Belt, South
Africa.
CHEMICAL: Iron Ore
This stockpile of iron ore pellets will be used in steel production.
CHEMICAL: Iron Ore
IRON ORE IS USED TO
MAKE STEEL
STEEL CABLES PICTURED
TO THE LEFT
ORGANIC
Ocean animals called coral create huge deposits of limestone As
they die, their skeletons collect on the ocean floor.
ORGANIC
ORGANIC
Coal is an organic sedimentary rock that forms mainly from plant
debris. The plant debris usually accumulates in a swamp
environment. Coal is combustible and is often mined for use as a
fuel.