Magma that has high amounts of silica (SiO2) has ________ viscosity
High
For this type of fault, the hanging wall moves down relative to the footwall
Normal fault
An erosional surface that lies between parallel layers of sedimentary rocks is called:
Disconformity
An isotope of an element will have a different number of __________
neutrons
Orogenesis
Basaltic magmas are distinguished by __________ temperatures
High
This kind of stress is crucial in the development of thrust faults
Compressive
Who helped to develop the principle of uniformitarianism?
James Hutton
Based on absolute dates of zircons in rocks, the Earth is _______ years old
~4.6 billion
The limbs of a fold will dip toward the hinge in this type of fold:
Syncline
Which process explains magma generation and volcanism along mid-ocean ridges?
Decompression melting
Following a major earthquake, tsunamis typically occur at this type of plate boundary:
Subduction Zone (convergent)
Archbishop Ussher studied _______ in order to determine the age of the Earth.
Biblical scriptures or genealogies
The nucleus of an atom is held together by this:
Strong nuclear force
This kind of deformation will take place in the shallow crust
Brittle
Which volcanoes are associated with subduction zone volcanism?
Stratovolcanoes
Deep-focus earthquake occur at which type of plate boundary?
Subduction zone (convergent)
An unconformity can occur in the rock record due to:
Non-deposition or Erosion
The absolute age of a rock considers the point in time when the system was __________.
Closed
The hinge
Which type of volcano and eruption are associated with basaltic magma?
Shield and Effusive
These seismic body waves arrive first to the seismic station:
P-waves
Based on the principle of cross-cutting relations, a fault that cuts across a sedimentary rock layer, would be considered _______ than the sedimentary rock layer.
Younger
If you start with a sample of 1000 parent isotopes, and 3 half-lives pass by, how many parent isotopes will be left?
125
This stage initiates the closing of the Wilson Cycle
Subduction