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Weathering and Soil
Visualizing Geology

Match each term or statement with a location on the image.

1 .
Describe how Bowen's reaction series relates to the weathering of minerals by selecting the correct response. (Silicate weathering diagram © Prentice Hall, Inc.)
For each item below, use the pull-down menu to select the letter which labels the correct part of the image.
The letters A through D appear on an image associated with this question.

1.1 high temperature of crystallization

1.2 low temperature of crystallization

1.3 very weather resistant on Earth's surface

1.4 easily weathered on Earth's surface

2 .
Label the component parts of this typical soil profile by selecting the correct response. (Soil profile diagram © Prentice Hall, Inc.)
For each item below, use the pull-down menu to select the letter which labels the correct part of the image.
The letters A through E appear on an image associated with this question.

2.1 loose and partly decayed organic matter

2.2 mineral matter mixed with humus

2.3 zone of eluviation and leaching

2.4 partially altered parent material

2.5 parent material (bedrock)

3 .
Examine this close up photograph of a granite. (Courtesy of the Geology Department, University of Cape Town) What will happen to each of the indicated minerals when this rock is completely weathered? [Hint]
For each item below, use the pull-down menu to select the letter which labels the correct part of the image.
The letters A through D appear on an image associated with this question.

3.1 sodium and calcium rich: forms kaolin, silica in solution

3.2 potassium rich: forms kaolin, silica in solution

3.3 forms kaolin, iron oxides, and silica in solution

3.4 remains the same, perhaps grains become smaller

4 .
What will likely be the end products of the complete weathering of each of the indicated minerals in this specimen of gabbro? (Close up photograph courtesy of the Geology Department, University of Cape Town)
For each item below, use the pull-down menu to select the letter which labels the correct part of the image.
The letters A through B appear on an image associated with this question.

4.1 forms iron oxides and clays

4.2 forms clays (kaolin) and silica in solution

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