How did the sedimentary environments of the Kaskaskia sequence differ from those of the Absaroka sequence in
North America? What will be an ideal response?
The Kaskaskia is characterized by a basal clean quartz sand which spread over the craton,
followed by extensive carbonate deposition, some evaporites, and black shales. Clastic
wedges poured west from rising highlands on the eastern cratonic margin. The Absaroka is
notable for cyclothems, and the extensive coal measures. Absaroka hallmarks include
intracratonic basin clastics (Ancestral Rockies). Retreat of the Absaroka Sea left extensive sheets of terrestrial red beds across the continent.
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Which of the following types of sewage treatment are properly matched?
a. primary--removal of pollutants particular to a given area b. secondary--removal of oxygen-demanding wastes c. advanced--removal of suspended solids d. primary - removal of oxygen-demanding wastes e. primary and secondary both - removal of pollutants particular to a given area
The principle of faunal succession is based on the fact that fossils ____
a. remain the same over time b. are confined to distinct geographic regions c. are widespread d. succeed one another through time in an order e. are found in all rock types
The amount of water vapor in the air (by volume) usually does not exceed
What will be an ideal response?
A map capable of showing true directions as straight lines running through a central point is called a(n) ____
a. Mercator map b. equal-area map c. planar map d. focal map e. azimuthal map