fossil fuel (coal,oil shale, petroleum) Flashcards
How many type of coal are there? name it.
5
1. peat
2.lignite
3.sub-bituminous
4.bituminous
5.anthracite
black/ brownish-black sedimentary rock that can be burned for fuels.
coal
-an accumulation of partly decomposed plant matter such as root/s stems/ and leaves
-20 % carbon (low energy)
peat
-brown coal
-lowest quality of coal
-25-30 % carbon (low carbon energy)
-high moisture content
lignite
-coal/black lignite
-buried for a long time
-35-45% carbon
-grey-black to dark brown
-generating electricity.
sub-bituminous
-second highest quality of coal
-higher carbon content
-lower moist content
-steel production
bituminous
-highest quality of coal
-lower moist content
-highest carbon content are more that 80%
anthracite
Fine-grained sedimentary rock that is rich in kerogen.
Oil-shale
Waxy insoluble organic matter found in sedimentary rocks that break down and releases hydrocarbons when heated.
Kerogen
petroleum is mixture of hydrocarbons found beneath the Earth’s surface that can be refined into a fuel.
Petroleum
_______ is a fossil fuel formed mainly from marine organism
petroleum
______ trap is a subsurface area where rocks spilt along a fault line.
anticline trap
____ trap. layers of rock spilt along a fault line.
-cause the permeable reservoir rock to be adjacent.
fault trap
__ __ __ rocks moves upward slowly.
salt dome trap
____ ____ trap deposition of different type of sediments.
stratigraphic trap.