The former, late Paleozoic super continent is known as ________.
Which of the following paleoclimatic evidence supports the idea of the late Paleozoic super continent in the Southern Hemisphere?
rocks formed by glaciers in South Africa and South America
The ________ is an example of an active, continent-continent collision.
northward movement of India into Eurasia
Pull-apart, rift zones are generally associated with ________.
a divergent plate boundary
Deep-focus earthquakes, those between 300 and 700 kilometers below the surface, occur only in association with ________.
A very long-lived magma source located deep in the mantle is called a ________.
Linear, magnetic patterns associated with mid-ocean ridges are configured as ________.
normal and reversed magnetized strips roughly parallel to the ridge
Which of the following energy sources is thought to drive the lateral motions of Earth's lithospheric plates?
export of heat from deep in the mantle to the top of the asthenosphere
The continental drift hypothesis was rejected primarily because Alfred Wegener could not ________.
identify a mechanism capable of moving continents
All of the following are evidence supporting the theory of plate tectonics except for ________.
changes in the Moon's orbit due to shifting plates
Deep-focus earthquakes are associated with ________ plate boundaries.
Which one of the following most accurately describes the volcanoes of the Hawaiian Islands?
shield volcanoes fed by a long-lived hot spot below the Pacific lithospheric plate
New oceanic crust and lithosphere are formed at ________.
divergent boundaries by submarine eruptions and intrusions of basaltic magma
Cooler, older, oceanic lithosphere sink into the mantle at ________.
subduction zones along convergent plate boundaries
Deep ocean trenches are surficial evidence for ________.
sinking of oceanic lithosphere into the mantle at a subduction zone
A transform plate boundary is characterized by ________.
a deep, vertical fault along which two plates slide past one another in opposite directions
The modern-day Red Sea is explained by plate tectonics theory because it is ________.
a rift zone that may eventually open into a major ocean if Arabia and Africa continue to separate
The volcanoes and deep valleys of east Africa are related to a ________.
continental rift along which parts of the African continent are beginning to slowly separate
________ most effectively outline the edges of the lithospheric plates.
Lines of earthquake epicenters
Deep-oceanic trenches are most abundant around the rim of the ________ ocean basin.