Geology Lesson 3
D) all of the above
A transform plate boundary may connect A) a spreading ridge and subduction zone. B) two spreading ridges. C) two subduction zones. D) all of the above
False
A transform plate boundary underlies the Alps in southern Europe.
D) all of the above
An acceptable hypothesis concerning the driving mechanism of plate tectonics must explain A) past plate configurations and movement B) present plate configurations and movement C) future plate configurations and movement D) all of the above
Tensional
At divergent plate boundaries, the forces operating are
False
Hot spots are locations on Earth where new divergent plate boundaries are beginning to form.
D) all of the above.
If the continents were once joined together, rocks and mountain ranges on the margins of each A) should have formed under the same conditions. B) should have formed in the same sequences. C) should have formed at the same time. D) all of the above.
True
If you were interested in prospecting for mineral resources, a plate tectonic map is a good place to begin your exploration.
Is destroyed as fast as it is created
In plate tectonic theory, the lithosphere
Continent-Continent Convergent Boundary
In the illustration, what type of plate boundary is shown?
Divergent Boundary
In the illustration, what type of plate boundary is shown?
Ocean-Continent Convergent Boundary
In the illustration, what type of plate boundary is shown?
Ocean-Ocean Convergent Boundary
In the illustration, what type of plate boundary is shown?
Transform Boundary
In the illustration, what type of plate boundary is shown?
False
Magnetic minerals in similar age rocks from Europe and North America point to different magnetic pole locations indicating that the pole is variable and migrates over time.
False
New evidence from seafloor exploration and paleomagnetism provide such overwhelming evidence for tectonic plate movement that plate tectonic theory is accepted without a driving mechanism.
Earth's geography has continually changed.
One of the most general conclusions to be drawn from plate tectonic theory is that
dating magnetic anomalies on the seafloor and calculating distance from the spreading center
Rates of plate motion are best determined by
All of the above
Select all the different types of data that suggested that the continents had moved. polar wandering fossil comparison paleomagnetism matching rock types across oceans
The ocean basins were young
Studies of paleomagnetism showed that
True
Supercontinents like Pangea will form in Earth's future.
radiometric dating of oceanic basalts and sequences from continents, and the unusually thin layer of oceanic sediments and the ages of contained fossils.
That the oceanic crust is geologically young and the parallel magnetic striping pattern of basalts is symmetrical about oceanic ridges was conclusively show
False
The California coast contains a convergent boundary.
False
The Red Sea and Gulf of Aden are examples of basins between converging plates (African and Arabian).
False
The eastern margin of the Ring of Fire is dangerous but is not a threat to human life.
Compressional
The forces operating at continent-continent convergent plate boundaries are
False
The idea that the position of continents has not been static over time is a relatively new concept, since the 1960's.
True
The plate tectonic theory is continually tested and refined even to present day.
True
The west coast of South America is a convergent boundary.
True
There is a divergent plate boundary within the region of east Africa.
True
Thermal convection cells in the mantle cause seafloor spreading.
True
Tropical climates existed in the past on continents which are now located in polar areas.
Continent-continent convergence
What is the boundary type?
Ocean-continent convergence
What is the boundary type?
Ocean-ocean convergence
What is the boundary type?
Transform
What is the boundary type? (San Andreas Fault)
Divergent
What is the boundary type? African Rift Valley
Paleomagnetism
What is the term used to study the Earth's ancient magnetic field?
False
When first introduced by Wegener, the idea of continental drift was widely accepted
Harry Hess
Who suggested that the sea floor was moving and not just the landmasses?
