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Analytical Chem Soil HW Solutions 2

Analytical Chem Soil HW Solutions 2 - QUESTIONS AND...

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2 QUESTIONS AND SOLUTIONS: CHAPTER 1 Origins and mineralogy of soils Q1.1 Describe the main depositional environments and transport processes relevant to soils, and explain their influence on soil fabric and structure. Q1.1 Solution Use material in Section 1.3.1 to describe and explain transport processes: water, wind, ice, ice and water depositional environment: water might be fast or slow flowing, eg upstream (fast) or downstream (slow), or ebbing floodwater (probably slow). Windborne material might be washed out of the atmosphere by rain. Material can be transported either on the top of, within or below a glacier or icesheet, or by a combination of ice and meltwater (outwash streams – possibly fast flowing) and perhaps deposited into a glacial lake (slow flowing). effect of transport mechanism and depositional environment on particle size – soils transported by wind and water are likely to be sorted, with finer particles remaining in suspension and being transported longer distances than coarse particles. Fine
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