Discuss the silled (barrier) basin model for evaporite deposition. What features of evaporites does this model explain? What will be an ideal response?
The silled basin model for evaporite deposition provides a mechanism by which thick
accumulations of evaporites can be formed. The model is illustrated in Fig. 10.12 of the
textbook. Inflow of seawater continually replenishes the seawater in the basin and evaporation causes supersaturated brine solutions to continually deposit evaporites, including
salt.
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The typical form for a composite volcano is a
A) steep-sided cone. B) shallowly sloping shield. C) broad, circular crater. D) steep-sided dome.
In 1798, Malthus claimed that the population was growing much more rapidly than Earth's food supply because population increased geometrically, whereas food supply increased arithmetically
Indicate whether the statement is true or false.
Captain James Cook returned to England after his final expedition in 1779 and recorded a 50-volume set of
reports of his scientific findings. a. True b. Fals
Barrow, Alaska has a
A) tundra climate. B) boreal climate. C) midlatitude steppe climate. D) tropical wet climate.