1 Usually methane is expelled in                                                                          

a) Metagenesis             b) Catagenesis                     c) Diagenesis

 Mid-oceanic ridges are formed on ____________. (Convergent Plate Boundaries, Divergent Plate Boundaries)

  ___________ is landwards migration of the coastline. (Regression, Transgresion)

  Which of the following is not true of the astehenosphere?

a.    It is part of the crust.

b.    It is a “soft” layer below the lithosphere.

c.    It is located in the upper mantle.

d.    It is apparently partly molten.

e.    Volcanic processes and crustal deformation seem to be associated with its movement.

 The geologic time scale is divided into four main units called eras. The most recent era is the

a.    Precambrian.

b.    Mesozoic

c.    Cenozoic.

d.    Paleozoic

e.       Quaternary

 The color of a finely powered mineral is called its

a.    fracture.

b.    streak.

c.    cleavage.

d.    crystal form.

e.    luster

 Which of the following is the most abundant non clastic rock?

a.    gypsum

b.    dripstone

c.    dolostone

d.    limestone

e.    rock salt

Transportation and deposition of sediment by turbidity currents is commonly   indicated by

f.     cross bedding.

g.    ripple marks.

h.    mud cracks.

i.      graded bedding.

The best geologic evidence indicates that Earth was formed about

a.    4 million years ago.

b.    3.5 billion years ago.

c.    4.5 billion years ago.

d.    10 billion years ago.

e.    10 million years ago.

The lithosphere is

                                          i.    the outermost shell of Earth.

b.    a rigid, solid layer about 65-100 km thick.

c.    is broken into a series of plates.

d.    all of the above.

e.    only (a)and (b) are correct.

 In the formation of kerogen which step involves no significant change in H:C ratio.      

a) Metagenesis             b) Catagenesis                         c) Diagenesis

 Catagenesis occures at                                                                                       

a)    0-30°C                      b)  60°-150°C                        c)  above 150°C

 

The average thickness of the continental crust is about

                                          i.    A). 35-40 km                          B). 100-200 km        

                                        ii.    C). 1000-2000 km                D). 5-10 km