Environmental Engineering Reference
In-Depth Information
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Qmb
Qlalm
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Kettles
Kettles
Kames
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Kettles
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Milford
Kettles
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Birmingham
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Livonia
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Lake
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Livonia
Qlahm
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Qmd
265
Qlswa
265
Qlc
200
Ms
Mbd
Detroit
Qmg
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Detroit
Da
200
140
Mbd
Ms
Da
Dt
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Da
Dd
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140
Dt
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Qlc
Qlc
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Dd
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190
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Qfa
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190
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Ddr
(e)
(f )
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(g)
(h)
FIGURE 5.15 (continued)
(e) Approximately 12,900 years before the present. (f) Approximately 12,500 years before the present. (g)
Approximately 11,000 years before the present. (h) Rouge River watershed geologic map, present day.
they list each deposit, stratigraphic columns are a necessary part of constructing a
geologic map.
Many of the hydrogeologic principles demonstrated through the mapping of the Rouge
watershed in southeastern Michigan are applicable to many other areas in the United
States and the world. Some of these principles include
1. Sediments are composed of geologic materials originating from several different
sedimentary processes including fluvial, lacustrine, and glacial; this is very typi-
cal of most watersheds in the United States.
2. The drainage pattern within the watershed is reflective of the geology depicted in
Figure 5.16. Specifically, the drainage pattern changes density once the sand unit
is encountered.
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