Exam 11: The Dynamic Planet

If one were to consider the average thickness of oceanic and continental crust under mountain,the thickness ranges from approximately

While Earth is estimated to be 4.6 billion years old,the oldest oceanic crust is approximately ____ years old.

A batholith forms from

Describe the endogenic and exogenic processes involved in the geologic cycle.

Which of the following is correct in regards to the geologic time scale?

The majority of the Earth's volume is within the

Which of the following is an example of the principle of uniformitarianism?

Molten rock beneath the Earth's surface is known as_____ ,whereas molten rock on the Earth's surface is called ___ .

Small plutons that form parallel to layers of rock that they intrude into are known as

Briefly review the history of the theory of plate tectonics.What was Alfred Wegener's role? What evidence did he present? Why was his theory not widely accepted initially? What new evidence led to its later acceptance?

The heat from ____is the energy that drives plate tectonics.

What type of rock is derived from the bits and pieces of former rocks?

Metamorphism that occurs over broad areas when the pressure and associated heat of overlaying rocks or other tectonic forces cause the rocks to undergo deformation is known as

The rigid crust and uppermost mantle are known collectively as the

The uneven transition zone from the outer core to the mantle is known as the_____ discontinuity.

Travertine,formed from the CaCO3 that has been precipitated from groundwater,is an example of ____sedimentary rock.

A(n)_____ is an assemblage of minerals bound together,a mass composed of a single mineral,a mass of undifferentiated materials,or a mass of solid organic material.

The transition zone from the upper mantle to the crust is known as the _____discontinuity.

Areas where plates slide past one another,usually at right angles to a seafloor spreading,are