1) Movement of tectonic plates is due to: Convection currents in the
asthenosphere
2) A divergent plate boundary is most likely associated with a – mid- ocean
ridge
3) Oceanic fracture zone: Are dead transform boundaries
8) Which theory came first: The theory of continental drift
9) What causes magnetic stripes on the seafloor, such as those shown above:
Ocean crust has magnetic minerals that show the direction Earth’s magnetic field
pointed in the past
12) Why do scientists look at magnetic patterns in the sea floor? To match the
patterns of reversals to the magnetic timescale to date rocks and to calculate the
rate of sea floor spreading
15) What landforms are typically seen at ocean hot spots- linear chains of
volcanic islands, Trenches, and composite volcanoes?
21) Shield volcanoes are often associated with what tectonic features- Plate
divergence and hot spots
22) Where would property damage cause by earthquakes be worst- near the
epicenter of the earthquake and where property is underlain by unconsolidated
sediment and liquefaction can occur
24) What features are typically associated with island arcs- oceanic trenches,
subduction and ocean- ocean divergence?
25) Where is oceanic crust destroyed? - Subduction zones
29) Flood basalts can influence life on Earth: By eruptions releasing large
volumes of gas that coll the atmosphere, such as sulfur dioxide
32) Volcanic domes are typically associated with high- viscosity lava and
pyroclastic flows, felsic composition lava and fast moving lava derived from the
mantle
33) If you had this type of deformation of a region, it would cause- Thickening of
the curst and orogeny
34) How does isostasy affect elevation- thicker crust sinks deeper into the
asthenosphere?
35) Which region has a high elevation because of the subduction of an ocean
plate-The Andes Mountains?
36) Where would the deepest earthquakes occur- at the subducion zone?
39) Which magma composition would contain long-chain silicates and lots of
trapped gas- Felsic?
45) Fissures and flood basalts are often associated with which plate boundariesdivergent boundaries
46) Which type of magma would have the fastest flow after eruption- mafic?
47) Composite volcanoes are typically associated with- Felsic to intermediate
lava flows, pyroclastic flows and lahars, and Eruption columns
48) False- New continental crust is created at C-C divergent boundaries
49) Sudden movement on a fault can cause a tsunami when the fault suddenly
uplifts or down drips the sea floor
52) Cinder cone volcanoes are often associated with- other volcanoes, high gas,
low viscosity magmas and short eruption times and lifespans
53) According to the Wilson cycle, Plate boundaries are always changing, the
location of mantle plumes changes over time and Super continents form, break
apart and form again regularly
55) The main cause of caldera collapse is- Collapse of the roof of the magma
chamber as magma erupts
57) True- Tsnesional stress causes strain that thins the crust and or creates
normal faults
59) Which tectonic setting is interpreted to be the cause of volcanism at
Yellowstone- Movement of North America over a mantle plume.
63) Transform boundaries: Are often associated with divergent boundaries, Do
not create or destroy crust and create linear feature
64) In general, brittle deformation of rock occurs: where the crust is cooler,
when stress exceeds the rock strength and where the heat and pressure are
intense deeper in the lithosphere
65) Which of Earth’s layers is the densest- Inner core
67) How do we determine what the interior of the Earth looks like- Density
differences cause refraction of seismic waves and S-waves can not travel through
liquids and leave a large shadow zone
68) False- C-C convergence often causes intense volcanism and earthquakes
72) What features is associated with o-o divergence?- Mid- ocean ridge
73) An inference is different form an observation because inferences include
information form previous knowledge
75) The mechanism by which rocks store and eventually release energy in the
form of an earthquake is termed- Elastic rebound
76) These features are typically seen at C-C convergence zones- Thrust fault
77) These features are typical of O-O divergence- mid-ocean ridge
78) These are the deepest areas of the sea floor- oceanic trench
79) This is a flow of mud and ash-Lahar
80) These are associated with intense eruptions of felsic or intermediate
magma- Caldera