Shared Flashcard Set

Details

Rocks
Rock terms
58
Science
11th Grade
10/08/2008

Additional Science Flashcards

 


 

Cards

Term
magma
Definition
liquid rock beneath the Earth's surface
Term
igneous rock
Definition
solidified magma or lava
Term
weathering
Definition
the breaking down of rock by chemical or mechanical means
Term
sediment
Definition
broken pieces of rock and other materials
Term
sedimentary rocks
Definition
rocks made of sediments
Term
metamorphic rocks
Definition
rocks created by heat and pressure
Term
rock cycle
Definition
different paths that a rock can go through to change into another type of rock
Term
extrusive igneous rock
Definition
rocks formed from lava and outside of the Earth's crust
Term
volcanic rock
Definition
rock formed from magma that erupted, cooled, and solidified within a km opf the Earth's crust
Term
bedding
Definition
layers
Term
intrusive igneous rock
Definition
igneous rock that forms inside the Earth
Term
plutonic rock
Definition
another name for intrusive rocks
Term
pluton
Definition
another name for plutonic rocks
Term
texture
Definition
Term
lava
Definition
molten rock outside the Earth's crust
Term
porphyry
Definition
rock with two sizes of crystals
Term
phenocryst
Definition

name for large crystals in a porphyry rock

Term
felsic
Definition
light colored igneous rock
Term
mafic
Definition
dark colored igneous rock
Term
ultramafic
Definition
rocks composed of mostly magnesium and iron
Term
intermediate rock
Definition
medium colored igneous rock
Term
basement rock
Definition
rock that makes up the foundation of a continent
Term
lithification
Definition
cementation in sedimentary rocks
Term
clastic sedimentary rock
Definition
composed of fragment of weathered rocks cemented together
Term
organic sedimentary rocks
Definition

rock mad of litified remains of plants and animals

Term

chemical sedimentary rocks

Definition
rocks formed from the precipitation of minerals from solution
Term
bioclatic sedimentary rocks
Definition
rocks made of broken shell fragments and similar remains of living organisms
Term
pore space
Definition
empty space among things like sand grains
Term
compaction
Definition
process where water is forced out of the pore space by the weight of ovwerhead layers
Term
fissility
Definition

spliting of very fine layering of shale

Term
peat
Definition
partially decayed plant remains
Term
carbonate rock
Definition
rock made up of calcite and dolomite
Term
sedimentary structure
Definition
features that develop during or shortly after deposition of sediment
Term
fractional crystallization
Definition
process where different minerals form at different temperatures
Term

Bowen's Reaction

Definition

relationship between magma and mineral formation

Term
cross-bedding
Definition
small beds lying at an angle to the main layers
Term
ripple marks
Definition
small parallel ridges formed in sand or mud caused by wind or water
Term
mud cracks
Definition
cracks that form when mud shrinks and dries
Term
fossils
Definition
once living remins in rock
Term
metamorphism
Definition
process of pressure and heat that changes rocks and minerals
Term
metamorphic grade
Definition
the intensity of the morphism that formed the rock
Term
deformation
Definition
folding, faulting, and other changes due to chemical or mechnaical means
Term
foliation
Definition
metamorphic layering
Term
slaty cleavage
Definition
parallel fracture pattern
Term
contact metamorphism
Definition
hot magma intrudes on cooler rock
Term
burial metamorphism
Definition
sedimentary rocks being buried and pressurized
Term
regional dynamothermal metamorphism
Definition
major  crustal movements  that build moutnains and deform rocks
Term
hydrothermal metamorphism
Definition
occurs when hot water and ions dissolve and react with the rock to change its chemical composition
Term
partial melting
Definition
some minerals melt at low temperatures while others staay solid
Term
kimberlites
Definition
rare ultramafic rocks
Term
pegamatites
Definition
large grained minerals
Term
deposition
Definition
when sediments are laid down
Term
graded bedding
Definition
bedding where particle size gets heavier towards the bottom layers
Term
evaporite
Definition
layer of sedimentary rock that forms from precipitates
Term
porosity
Definition
percentage of open spaces between grains in rocks
Term
nonfoilated
Definition
not layered
Term
porphyroblast
Definition
large crystals in metamorphic rocks
Term
rock cycle
Definition
continuous changing and remaking of rocks
Supporting users have an ad free experience!