How is the oxygen isotope record of marine limestones used to test Milankovitch's theory of the ice ages?
What will be an ideal response?
The oxygen isotope record can be used to indicate the temperature of the oceans and the amount of water stored in glacial ice. Time series analysis reveals that the oxygen isotopic record contains the periodicities predicted from Milankovitch theory. Comparing trends in the oxygen isotope record to the predicted climate fluctuations from Milankovitch forcings allow us to test the impact of these forcings.
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Nuclear ________ involves the joining of lighter elements to produce heavier ones
Fill in the blank(s) with correct word
In the Public Land Survey System, _______________ defines a point east or west of a principal meridian and _______________ defines a point north or south of a base line
Fill in the blank(s) with correct word
In general, warm, wet climates allow for fast formation of soils primarily because
A) chemical weathering proceeds at rapid rates. B) parent material found in warm, wet climates tends to break down faster than the types of parent material found in colder climates. C) physical weathering proceeds at rapid rates. D) there is less biological activity in warm, wet climates than elsewhere.
In the Public Land Survey System (PLSS), a township labeled T3N, R1W would indicate that it is
A) a one-mile by one-mile tract of land that is three townships north of the nearest base line and one range west of the nearest principal meridian. B) a one-mile by one-mile tract of land that is three townships north of the nearest principal meridian and one range west of the nearest base line. C) a six-mile by six-mile tract of land that is three townships north of the nearest base line and one range west of the nearest principal meridian. D) a six-mile by six-mile tract of land that is three townships north of the nearest principal meridian and one range west of the nearest base line.