Answered: Consider the drainage network formed by…

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

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Transcribed Image Text:Consider the drainage network formed by the Mancos River and its tributaries. How would you describe this network (i.e. dendritic, radial, trellis)? 1. 2. What does the drainage network tell you about the underlying geologic control on the development of this integrated stream system? Why would such a stream system be an important choice in selecting an area to study stream evolution over time? Hint: Think about 3. Study topographic profiles A-A' and B-B' that you constructed below. Do tributary valleys become deeper or more shallow than the valleys into which they flow? Circle One: Tributaries are Deeper Tributaries are More Shallow 4. Are the tributary valleys wider or more narrow than the valleys into which they flow? Circle One: Tributaries are Wider Tributaries are More Narrow 5. Examine the long profile you constructed. How does slope change as you trace the flow of the stream down hill from Station A through Station F? Circle One: Slope Becomes Steeper Slope Becomes More Gentle If the energy of the stream is related in part to the slope gradient, would you consider the energy of the stream to be evenly distributed over the length of the long profile you constructed? If it is uneven which parts of the profile has a greater concentration of energy? 6. Introductoru Geolomlaboratomi Stranm Eualution 6

Transcribed Image Text:5749 655 A' 6000 15 SW 16,500 ft NW 6,250 ft 6,000 ft 5,750 ft 5,500 ft Zoom in of a portion of the Soda Canyon Quad Map from the U.S.G.S. Line of profile from NW to SW shown. Each index contour has been marked off for you. Note the last contour value is also shown. Also note your plateau will extend above the 6,500 ft line on your vertical scale. 6550 t6500 6250 0009 5750 0009 6250 6500

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