10 1st MQA Flashcards
Tectonic plates collide or move together
–> <–
Convergent plate
They seperate and move away of another <– –>
Divergent plate
Where two slide past horizontally
> /
/ <
Transform plate
Mostly found along the plate margins
Volcano Distribution
A geolist an navy submarine commander and part of his mission is to study the deepest part of the ocean floor
Harry Hess
Mountains that formed due to the movement place either apart or move each other
Mountain Ranges
Father of plate tectonics theory / Modern version of the continental drift theory
Alfred Wegener
Is the driving mechanism of plate movement
Convection Current
Solid Layer of earth
Lithosphere
Collision between oceanic and continental crust / In Three Types of Convergent Plate Boundaries
Oceanic Continental Converge
A ductile layer under the solid lithosphere
Asthenosphere
Both oceanic crust have the same density
Oceanic - Oceanic Convergence
Two continental crust move toward one another / Formation of mountains
Continental - Continental Convergence
The plates slide past horizontally to each other without destroying the lithospheric plate
Transform Plate Boundary
The origin where the earthquake occurs
Hypocenter / Focus
The point directly above the focus on earth
EpiCenter
Sweep the surface in a side to side
Love waves (L Waves)
Occurs on the lithosphere / Either love wave or rayliegh wave
Surface Waves
Shakes the ground in a up and down motion
Rayliegh waves (R waves)
An instrument that detects measure seismic waves
Seismograph
Quantative measure of an earthquake
Magnitude
Most Common Scale on an earthquake
Richter Scale
Massive rigid of rocks that form earth’s continents / Composed of granite
Continental Plates
Composed of basalt
Dense: 3:0g/cm
Oceanic Plates
The process wherein magma escapes from earth interior to form cool and hard rock volcano
Volcanoism
The channel magma that travels through that reach earth’s surface
Main vent
Opening that allows molten magma to flow outside the surface
Crater
Formed through the cooling and solidification of molten rocks
Igneous rocks
Ability to flow. If the greater the answer is.The greater the resistance to flow
Viscosity
A landform with an opening at the top
Volcano
Volcanoes that arise from the excretion of magma to the mantle known as
Hotspots
Rough and jagged and dangerous due to it’s sharp edges
AA
Small fragments of rocks and minerals and glasses
Volcano Ashes
Process of mountain building
Orogeny
Refers to a large surface feature that rises above it’s relative
Mountain
Occurs when two oceanic plates converge and as the leading type
Island arc
Is caused by the compression on the crust above
Continental Volcanic Arc
Occurs along continental plate boundaries
Andean Type
Lowest point of the fold
Syncline
The peak of any folded rock layer
AntiCline
Sharp peaked anticline fold
Tightfold
Bending or warping of folding rock layers
Overfold
As a result of too much bending that no vertical regions can be seen
Recombent fold
A fold that has overtuned causing rock layers to be fractured
Nappe
Is a fracture between two blocks of rock
Fault
A slope or inclination of any geolical surface the greater the slope the greater dip angle strike / Any horizontal line that is drawn
DIP
Any rocks that falls above the fault line footwall / Any rocks that falls under the fault line
Hanging Wall
These faults can be found along transformed plate boundaries
Strike - Slip Fault
A storage location of molten rock below the ground
Magma Chamber
A Greek word which means ‘‘All Earth’’
Pangea
The Three Evidence Of Alfred Wegener
Geolical Fit
Glacier
Coal Deposit
Thinnest and outermost layer of the earth
Crust
The primary and secondary waves travel within the interior of earth, and are responsible for the detection on the epicenter of an earthquake
Seismic Waves
Also known as plate boundaries
Plate Margins
Internal part of seismograph and works as a pendelum that swings back and forth which is attached to a barrel that rotates and makes print of the ground shaking
Seismometer
When lava flows on the surface of earth, It is called
Extrusive volcanism
Entrapped lava flow that does not reach the surface is called
Intrusive volcanism
Lava flow exhibits smooth-surfaced characteristics
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