Term
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Definition
| Recrystallization, Phase Change, NeoCrystallization,Pressure Solution,Deformation |
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Term
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Definition
| recrystallization, changing conditions (pressure & Temp) |
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Term
| temperature affects ____ most |
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Definition
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Term
| Pressure affects _____ most |
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Definition
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Term
| Fluids affect ______ most |
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Definition
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Term
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Definition
Break Bonds and help diffuse
mineral stability determined
from burial or magma |
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Term
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Definition
minerals grow away from stress
confining stress
defractional stress |
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Term
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Definition
felt in ALL directions
greater with depth (Burial) |
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Term
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Definition
Stress felt in ONE direction
grow AWAY from stress |
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Term
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Definition
Act as catalyst
accelerate reactions
carry dissolved ions and heat |
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Term
| Types of Regional Metamorphism |
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Definition
Crust Thickening
Burial
High Pressure
Ultra High Pressure |
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Term
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Definition
low grade temp and pressure
helps with diagenisis
deep in basins |
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Term
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Definition
| Stacking of continental crust |
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Term
| High and Ultra High Pressure |
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Definition
base of crust (high pressure & temp)
rarely on surface
occurs at subduction zones
high pressure=blueshist
ultra high=diamonds |
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Term
| Types of Contact Metamorphism |
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Definition
Hydrothermal
thermal
shock
dynamic |
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Term
|
Definition
another term for Contact
heat from igneous rock
high tempurature
variable pressure |
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Term
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Definition
impact of meteorites
plate spreading at mantle plume
quick impact |
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Term
|
Definition
Areas with high to moderate strain
faults
texture depends on depth |
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Term
| Hydrothermal Metamorphism |
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Definition
meets with high temperature fluid
triggers metamorphic reaction |
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Term
| Types of Regional Metamorphism |
|
Definition
Crust Thickening
Burial
High Pressure
Ultra High Pressure |
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Term
|
Definition
low grade temp and pressure
helps with diagenisis
deep in basins |
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Term
|
Definition
| Stacking of continental crust |
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|
Term
| High and Ultra High Pressure |
|
Definition
base of crust (high pressure & temp)
rarely on surface
occurs at subduction zones
high pressure=blueshist
ultra high=diamonds |
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Term
| Types of Contact Metamorphism |
|
Definition
Hydrothermal
thermal
shock
dynamic |
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Term
|
Definition
another term for Contact
heat from igneous rock
high tempurature
variable pressure |
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Term
|
Definition
impact of meteorites
plate spreading at mantle plume
quick impact |
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Term
|
Definition
Areas with high to moderate strain
faults
texture depends on depth |
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Term
| Hydrothermal Metamorphism |
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Definition
meets with high temperature fluid
triggers metamorphic reaction |
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Term
|
Definition
| sediments originally deposit horizontally |
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Term
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Definition
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Term
| What defines relative aging? |
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Definition
| fossils, cross-cutting, depth |
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Term
|
Definition
| igneous intrusion or fault is younger than the layer it cuts. |
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Term
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Definition
| older rocks dip at different angles (usually steeper) than overlying strata |
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Term
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Definition
| A boundary across which seismic wave velocity or direction of travel changes abruptly, such as the mantle-core boundary. |
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Term
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Definition
| the parallel surfaces or layers that can occur in a metamorphic rock, gives rock a striped appearance, can give them the ability to split into thin sheets. |
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Term
|
Definition
| An unconformity in which stratified sedimentary rocks overlie an erosion surface cut into igneous or metamorphic rocks. |
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Term
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Definition
| A break in the geologic record represented by an erosional surface seperating younger strata from older rocks. |
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Term
| What Epoch/Period do we live in? |
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Definition
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Term
| What do paired metamorphic belts equate to? |
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Definition
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Term
| What changes can occur in Deformation? |
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Definition
| Rotation, Translation, Change in Shape |
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Term
| What are the types of Stresses? |
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Definition
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Term
| What are the types of Faults? |
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Definition
Normal-Tensional stress
Reverse- Compressive Stress
Thrust- Compression w/ shallow dipping |
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Term
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Definition
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Term
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Definition
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Term
|
Definition
| relative movement of block up or down the dip of the fault |
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Term
|
Definition
| Movement of block has been horizontal, parallel to strike |
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Term
|
Definition
| process of stresses deform an area of crust so layers of rock push into curve |
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Term
|
Definition
layered rock bent up
oldest in middle |
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Term
|
Definition
layered rock bent down
youngest in middle |
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Term
|
Definition
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Term
|
Definition
| crack in rock formation yet no known movement |
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Term
|
Definition
ductile formation at deeper shear zones
produces metamorphic rocks |
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Term
|
Definition
| reverse/thrust faults, subduction zones |
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Term
|
Definition
| strike slip at transform faults |
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Term
| significance of Volcanoes |
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Definition
determine properties of earth's interior
basalt
fundamental for plates
affect human life |
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Term
|
Definition
| magmas pool in a chamber that periodically erupts through central and side vents |
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Term
|
Definition
what flows on the surface
Ryolite (felsic)
Andesite (intermediate)
Basalt (mafic) |
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Term
|
Definition
| temperature, composition, gas |
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Term
|
Definition
Comp: Mafic
Silica Content: Low
viscosity: Low
Erupting Temp: high
Gas Content: low
fast flowing
i.e. hawaii |
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Term
|
Definition
Comp: felsic
Silica Cont:high
viscosity:high
erupting temp:low
gas cont:high
Pink Color
i.e. yellow stone |
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Term
|
Definition
everything: intermediate
driven by continent/ocean boundary
i.e. andes |
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Term
| Textures of volcanic material |
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Definition
| glassy, vesicular, pyroclast |
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Term
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Definition
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Term
|
Definition
broad, gentle slope
basalt formed |
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Term
|
Definition
cone pyroclastic
more explosive/more gas |
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Term
|
Definition
common in subduction zone
alternating layers of lava & pyroclst |
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Term
|
Definition
implodes from violent eruptions
structure collapses
crater lake (deepest lake in america |
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Term
|
Definition
side vent eruption
basaltic lava through vertical fractures
i.e. mid ocean ridges |
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Term
|
Definition
mudflows of wet volcanic debris
heavy rain on new ash deposits |
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Term
|
Definition
| sides become too steep and fail |
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Term
|
Definition
| composed of ash, steam, gas & more |
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Term
|
Definition
CO2 H2O SO2
can affect dormant volcanoes as well |
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Term
|
Definition
can be deposited of 1,000 sq km
can block sun/ cause cooling |
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Term
|
Definition
| used to show rocks or strata on the surface using contour lines |
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Term
|
Definition
"cutting into the earth"
seen in deep canyons |
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Term
|
Definition
| features of both strike and dip slip |
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Term
|
Definition
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Term
|
Definition
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Term
|
Definition
| EXTREMELY tilted to one direction |
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Term
|
Definition
small step of a vertical fault
rocks fracture on both sides |
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Term
|
Definition
| layer of sedimentary rock |
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Term
|
Definition
| order in which the strata occur |
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Term
|
Definition
| order in which floral and faunal fossils are left in the strata |
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Term
|
Definition
.5 billion years-Phanerozoic
400 million years- cenozoic
100 million years- quaternary
10+ million years-holocene |
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Term
|
Definition
clastic rocks from subducting and overriding plates filling in trench
high pressure, low temp
deformed mix of rocks |
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