Tectonic Enquiry 1 - Statistics

General Stats
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  • The average score is 2 of 154
Answer Stats
Hint Answer % Correct
Major Plates Eurasian
100%
Major Plates North American
100%
Basaltic lava 1000-1200
0%
Pyroclastic flow distance 100km
0%
Low viscosity lava speed 10kmh
0%
Annual growth 10mm
0%
NA annual movement 25mm
0%
Deep foci 300km
0%
Continental crust 30-70 km
0%
Oceanic crust 6-10km
0%
A+R lava 650-1000
0%
Pyroclastic flow temp 700-800
0%
Lahar speed | Pyroclastic flow speed 80kmh
0%
P annual movement 80mm
0%
Major Plates African
0%
Earthquake distribution All margins
0%
Destructive margin Andesitic and rhyolitic composite
0%
Tectonic activity Andesitic and Rhyolitic lava
0%
Hotspot mantle plume Anomalously hot vertical column of extremely hot magma rising from the athenosphere caused by radioactive decay
0%
Volcanoes An opening in the earths crust through which ash, lava, and gases erupt
0%
Impacts of microscopic ash Atmospheric haze
0%
Constructive margine Basaltic shield
0%
Tectonic activity Basaltic shield volcanoes
0%
Impacts of microscopic ash Breathing
0%
Soil liquefaction effects Building subsidence
0%
Impacts of large tephra Casue injuries
0%
For example Christchurch, 2011
0%
Convection currents Circular movement of semi molton rock creating drag on the base of tectonic plates
0%
Tectonic activity Composite volcanoes
0%
Mantle plume Concentrated areas of heat convection
0%
Volcano distribution Constructive and destructive margins
0%
Intraplate Continental rhyolitic composite
0%
Conservative boundary key words Cracks and fault lines
0%
Impacts of microscopic ash Crop yields
0%
Primary hazards Crustal fracturing
0%
Impacts of large tephra Damage buildings
0%
Crustal fracturing Deep jagged cracks
0%
Landforms Deep sea trench
0%
Susceptible areas Deforested
0%
Destructive boundary key words Denser oceanic plate
0%
Magnitude factors Depth of focus
0%
Global distribution Dictated by plate boundaries
0%
Rift valley example East African ridge
0%
Conservative boundary key words Enlarged by weathering and erosion
0%
Plates Eurasian and Indian
0%
Lahars Fast flowing mudflow
0%
Primary waves Fast moving horizontal vibrations in the mantle creating phases of expansion and compression
0%
Earthquake process First and strongest at the epicentre
0%
Surface fracturing Folding or buckling
0%
Landforms Fold mountains
0%
Basaltic erruptions Frequent, long, less violent
0%
Tectonic activity Frequent major earthquakes
0%
Tectonic activity Frequent minor earthquakes
0%
Tsunami process Friction with the seabed near the coast causes waves to lose energy
0%
Jokulhlaups Glacial outburst flood from subglacial lake
0%
Primary hazards Ground shaking
0%
Landslides Ground shaking dislodges rocks and soils in already susceptible areas
0%
Destructive boundary key words Heat and friction
0%
Oceanic crust High density basalt
0%
Susceptible areas High rainfall
0%
A+R lava High silica
0%
A+R lava High viscosity
0%
Fold mountain example Himalayas
0%
For example Himalayas, 2015
0%
Explosivity factors How easily gases escape
0%
Paleomagnetism indicates How quickly the plates moved
0%
Major Plates Indo-Australian
0%
Earthquake distribution Indonesia, Japan, Phillipines
0%
Tectonic activity Infrequent major earthquakes
0%
A+R erruptions Intermittent, short-lived, violent erruptions
0%
Core materials Iron and nickel
0%
Explain Iron rich magma rises to fill gaps where plastes iverge and becomes polorised at the surface
0%
Landforms Island arcs
0%
Secondary hazards Jokulhlaups
0%
Secondary hazards Lahars
0%
Secondary hazards Landslides
0%
Primary hazards Lava
0%
Destructive boundary key words Less dense continental crust
0%
Collision boundary key words Less than underlying athenosphere
0%
Destructive boundary key words Locked fault releasing pressure can trigger earthquakes
0%
Continental crust Low density granite
0%
Basaltic lava Low silica
0%
Basaltic lava Low viscosity
0%
Destructive boundary key words Magma rises due to low density
0%
Hotspot volcano Mantle plumes melt and weaken undernearth the crust so that magma can force through
0%
OO deep sea trench example Mariana
0%
Mid ocean ridge example Mid Atlantic ridge
0%
Landforms Mid ocean ridge
0%
Plates Nazca and South American
0%
Collision boundary key words Neither crust is subducted
0%
Constructive boundary key words New crust or volcano
0%
Plates North American and Pacific
0%
Tectonic activity No volcanoes
0%
Intraplate Oceanic basaltic shield
0%
Intraplate earthquakes Old fault lines moving into resting positions
0%
Conservative boundary key words Opposite directions
0%
Major Plates Pacific
0%
Plates Pacific and Phillipine
0%
Earthquake distribution Pacific plate
0%
OC deep sea trench example Peru-Chile
0%
Wadati-Benioff zone planar zone of seismicity corresponding with the direction of a down going slab in the subduction zone
0%
Earthquake process Plates jolt past each other
0%
Constructive boundary key words Pressure releases as plates diverge
0%
Primary hazards Pyroclastic flow
0%
Why? Radioactive decay causes super heated magma in the athenosphere to rise
0%
Global distribution Rare intraplate hazards
0%
Landforms Rift valley
0%
Lower mantle Rigid with a degree of plasticity
0%
Volcano distribution Ring of fire
0%
Collision boundary key words Same density
0%
Conservative boundary key words Same direction at different speeds
0%
Fault line example San Andreas
0%
Outer core Semi molton
0%
Upper mantle (3) Semi molton, cooler, weaker
0%
Earthquake process Sending seismic waves along a fault line
0%
Tsunamis Series of large waves casued by the displacement of large volumes of water
0%
Conservative boundary key words Shearing action increases friction
0%
Earthquake process Shockwaves spread out from the focus
0%
Mantle materials Silicate rocks with geothermal gradient
0%
Secondary waves Slower verticle vibrations in the centre of the crust
0%
Love waves Slow horizontal vibrations perpendicular to P waves following S waves on the surface of the crust
0%
Soil liquefaction Soil becomes weak and easily deformed
0%
Secondary hazards Soil liquefaction
0%
Inner core Solid ball
0%
Major Plates South American
0%
Impacts of large tephra Start fires
0%
Intraplate earthquakes Stretching plates
0%
Paleomagnetism Study of ancient magnetism preserved in rocks
0%
Destructive boundary key words Subducted crust melts
0%
Tsunami process Submarine earthquake causes water column displacement
0%
Pyroclastic flow Superheated ash, gas, volcanic rock
0%
Primary hazards Surface fracturing
0%
Soil liquefaction effects Swallowing
0%
Primary hazards Tephra
0%
Earthquake process The crust has a degree of elasticity allowing it to recoil back and forth
0%
Slab pull The pulling force exerted by a cold dense oceanic plate plunging into the mantle due to its own weight
0%
Why? The rising limb of a convection current heats part of an oceanic plate, making it less dense than the other side
0%
Impacts of microscopic ash Transport
0%
Secondary hazards Tsunamis
0%
Magnitude factors Type of plate margin
0%
Soil liquefaction damages Underground structures
0%
Soil liquefaction Vibrations put groundwater under pressure, forcing water through soil particules
0%
Earthquake Violent shaking of the earths crust due to the buildup and sudden release of tension or pressure
0%
Explosivity factors Viscosity
0%
Primary hazards Volcanic gases
0%
Lahars Volcanis material mixes with large amounts of water
0%
Tsunami process Waves radiate out in all directions, starting small and fast
0%
Tsunami process Waves slow down and grow in height as they are compacted
0%
Paleomagnetism indicates When it was formed
0%
Susceptible areas Young geology
0%
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