First Quiz for Geology 1001.6 spring 2005- LSU Thursday, 27 January 2005
1) The theory of ___________ ________________ proposed by _______________ in 1915 preceded the
theory of Plate Tectonics
a)
Continental Drifting/ Hess b)Continental Drifting/ Wegner c) Sea Floor Spreading/Wegner d)
Sea Floor Spreading/ Hess
2) The age of universe is thought to be:
a) 15.0 billion years ago b) 10 billion years ago c) 5 billion years ago d) 3 billion years ago e) 25 billion
years ago
3) Tectonic plates move at rates that are approximately:
a) 1-5 cm every 1,000 years
b) 1-25 cm/year
c) 1-25 m/year
d) 1-100 miles/year
e) none of the above
6) In the whole Earth the four most common elements are oxygen, silicon, magnesium, and:
a) copper b) lead d) iron c) zinc d) potassium e) nitrogen
7) The most abundant element in the earth is
a) oxygen b) silicon c) magnesium d) iron
8) The most abundant element in the earth's crust is
a)oxygen b) silicon c) magnesium d) iron
9) The nebular hypothesis …
a) is a vague hypothesis about the origin of the universe
b) is ahypothesis about the origin of our solar system
c) explains the denser composition of planets nearer the sun
d) is no longer an acceptable hypothesis to explain the origin of the universe
e) b and c
10) The Big Bang Theory states that:
a) all stars will end their lives explosively as supernovas
b) the Earth formed through a series of violent collisions
c) meteors were responsible for the extinction of the dinosaurs
d) all matter in the Universe was once confined to a single point
Quiz 2
1) What drives plate tectonics?
a) magnetic reversals b) mantle convection c) gravity d) volcanism e) b and c
2) The density of the continental crust is larger than the density of the oceanic crust.
a) true b)false
3) Unlike the lithosphere the asthenosphere ________________.
a) is able to flow over long periods of time
b) has a density similar to the core.
c) is very rigid and has many earthquakes
d) is relatively cool
4) At a divergent plate boundary, two opposing plates:
a) move toward one another
b) move away from one another
c) slide past one another
5) Heat transfer that occurs by the movement of a fluid, driven by temperature differences among
various points within the fluid, is termed:
a) radiation b) conduction c) convection d) adhesion e)precipitation
6) The magnetic field of Earth in the geologic past:
a) is unknown, but it assumed to have been identical to today’s
b) is known to have been constant through geologic time, as recorded by the remnant magnetization
of iron-rich minerals in rocks
c) is known to have experiences numerous polarity reversals, as recorded by the remnant
magnetization of iron-rich minerals in rocks
d) is known to have been constant through time, on the basis of theoretical calculations
7) The age of the oceanic crust ___________ with increasing distance from a mid-ocean ridge.
a) increases b) decreases
8) The theory of plate tectonics:
a) incorporates continental drift but not sea floor spreading
b) incorporates sea-floor spreading but not continental drift
c) incorporates and explains both sea-floor spreading and continental drift
d) does not incorporate sea-floor spreading or continental drift
9) The San Andreas fault in California is an example of:
a) convergent plate boundary
b) divergent plate boundary
boundary
10) Hawaii is an example of:
a) hot-spot volcano
d) transform margin
b) mid ocean ridge volcano
e) convergent margin
c) transform plate
c) volcanic island arc
QUIZ 3
1) Halite has Na+ and Cl- ions bonded together through this type of bond:
a) Van der Waals
b) Covalent
c) Ionic
d) Electron sharing
e) C and d
2) The definition of a mineral includes all these statements EXCEPT that a mineral must be or have:
a) Naturally occurring
b) Solid
c) Crystalline
d) Organic
e) Definite chemical composition
3) Which of the following subatomic particles has a positive charge?
a) electron
b) neutron
c)muon d)cation e)anion
4) Which of the following substances is not considered a mineral?
a) coal b) diamond
c) salt d) gypsum
e) graphite
5) What is the name for atoms of the same element that have different numbers of neutrons?
a) electrons
b) ions c) isotopes
d) polymorphs
6) Calcite belongs to which mineral group?
a) silicates
b) carbonates
c) oxides
d) sulfates
e) sulfides
7) The hardest mineral known is _____________ because it has four _________________ bonds.
a) diamond, ionic
b) diamond, covalent
c) corundum, ionic
d) corundum, covalent
8) Most common rock-forming minerals are ______ .
a) carbonates
b) oxides
c) silicates
d)sulfates
9) The mineral property “cleavage” refers to __________.
a) the development of crystal faces during mineral growth
b) the splitting of a mineral along planar surfaces
c) the development of irregular fractures in a mineral
d) the density of a mineral
10) What is the dominant type of bonding in minerals?
a) covalent bonding
b) ionic bonding
d) nuclear bonding
c) metallic bonding