all the conformity
a separation between two strata caused by a period of erosion or no sediment deposition
unconformity
made from burning wood
charcoal
igneous rock--> sediment
weathering
igneous rock
-formed from freezing magma/or lava
an unconformity between parallel strata of rock
disconformity
releases the most heat per gram and mostly produces carbon dioxide
anthracite coal
sediment---> sedimentary rock
lithification
sedimentary rock
formed from small particles accumulating and then sticking togethe
the contact between igneous or metamorphic rock and sedimentary rock above it
nonconformity
most energy per gram burns lots of chemicals
bituminous coal
sedimentary rock----> metamorphic rock
heat and/or pressure
metamorphic rock-
rock formed from existing rock that was subjected to heat/or pressure
a bedding plane that is thought to be an unconformity but doesn't look like one
paraconformity
contains less carbon than bituminous and is cheap
sub-bituminous coal
metamorphic rock--->magma
melting
rock cycle
the process by which the three basic types of rock can be converted into one another
an unconformity between two sets of strata that are tilted relative to each other
angular unconformity
contains even less then both and is also very cheap
lignite coal
magma--->igneous rock
freezing
lithification
the process by which sediment becomes sedimentary rock