GEOLOGY Flashcards
Rock
a natural formed soil usually made of one or more minerals( exception- some are made from organic matter)
mineral
a solid naturally, inorganic substance(not formed from life) w a specific atomic structure
igneous
formed from cooled molten rock
Sedimentary
from sediments compacting together
Metamorphic
from other rocks that have been charged by heat and pressure
Sediment
pieces of broken down materials
Molten rock
Made liquid by heat; melted
Principle of Original Horizontality
This principle states that layers of sediment are originally deposited horizontally under the action of gravity.
Uplift
\
| |
o y
pressure from one side underneath of the rock pushing it up
Cross-Cutting
—–//////—–
o y m
lava/molten rock flows down cutting the rock, OR pressure from under the rock causes molten
unconformity
o////////m
pressure pushed from under the lower rock and then water came and eroded the top layer to be flat.
Igneous, sedimentary and metamorphic rocks are usually made of what
Minerals
Which process is necessary for the formation of an igneous rock?
solidification
Name the “father of geology”
James Hutton
faulting/fracturing
y———_____
_____———–o
plates move
folding
y
/\/\/\
/\/\/\
o
pressure from the sides pushing towards one another creates folding
glacial erratic
y
___0___o
dragged there by a glacier and as it receded back it left it there
Fine texture
smaller sized grains/sedimen
Cementation
sediments naturally gluing together because of light pressure
Coarse texture
larger sized grains
Weathering
the wearing down of a rock
Erosion
the movement of newly created sediments from their original location
Bioclastic texture
immense heat and pressure exposed to a particular spot or a large region, resulting in rocks changing
Clastic texture
pieces of rock compacted together