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3. River deposits exposed in the eroded bank of the Merced River (Photo D). (a) List all of the grain sizes that you see or that are likely to be present in the Merced River bank shown in photo D. (b) How would you describe the sorting of sedimentary grains in the stream bank? (c) How would you describe the shape of sedimentary grains you can see in the stream bank?

3. River deposits exposed in the eroded bank of the Merced River (Photo D). (a) List all of the grain sizes that you see or that are likely to be present in the Merced River bank shown in photo D. (b) How would you describe the sorting of sedimentary grains in the stream bank? (c) How would you describe the shape of sedimentary grains you can see in the stream bank?

Applications and Investigations in Earth Science (9th Edition)
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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Grain-Size Class gravel sand silt clay Exponential Notation 22¹ mm 24 to 2¹ mm 2 to 2 mm s 2* mm Grain Diameter Integers and Ratios 22 mm 1/16 to 2 mm 1/256 to 1/16 mm s 1/256 mm Decimal Notation > 2 mm 0.0625 to 2 mm 0.0039 to 0.0625 mm $ 0.0039 mm GRAIN ROUNDNESS Millimeters Wentworth Grade >256 >64 Boulder Cobble Pebble Granule 3. River deposits exposed in the eroded bank of the Merced River (Photo D). (a) List all of the grain sizes that you see or that are likely to be present in the Merced River bank shown in photo D. (b) How would you describe the sorting of sedimentary grains in the stream bank? (c) How would you describe the shape of sedimentary grains you can see in the stream bank?
Transcribed Image Text:Grain-Size Class gravel sand silt clay Exponential Notation 22¹ mm 24 to 2¹ mm 2 to 2 mm s 2* mm Grain Diameter Integers and Ratios 22 mm 1/16 to 2 mm 1/256 to 1/16 mm s 1/256 mm Decimal Notation > 2 mm 0.0625 to 2 mm 0.0039 to 0.0625 mm $ 0.0039 mm GRAIN ROUNDNESS Millimeters Wentworth Grade >256 >64 Boulder Cobble Pebble Granule 3. River deposits exposed in the eroded bank of the Merced River (Photo D). (a) List all of the grain sizes that you see or that are likely to be present in the Merced River bank shown in photo D. (b) How would you describe the sorting of sedimentary grains in the stream bank? (c) How would you describe the shape of sedimentary grains you can see in the stream bank?
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4. Use your observations to make predictions. The Merced River flows from Yosemite Valley at an elevation of ~1,200 m above sea level in central Yosemite Valley to an elevation of ~250 m where the river enters Lake McClure, a reservoir in the San Joaquin Valley west of Yosemite Valley. The actual distance the river travels along its channel from Yosemite to the upper end of Lake McClure is more than 65 km. You can examine the Merced River course between latitude 37.72°N, longitude 119.63° W (central Yosemite Valley) and 37.602°N, 120.100°W (inlet to Lake McClure on the Merced River) using Google Earth. a. What sedimentary grain sizes are likely to be deposited in Lake McClure from the erosion of Yosemite Valley? b. What do you think will be the composition of most of the sedimentary grains deposited in Lake McClure from Yosemite Valley?
Transcribed Image Text:4. Use your observations to make predictions. The Merced River flows from Yosemite Valley at an elevation of ~1,200 m above sea level in central Yosemite Valley to an elevation of ~250 m where the river enters Lake McClure, a reservoir in the San Joaquin Valley west of Yosemite Valley. The actual distance the river travels along its channel from Yosemite to the upper end of Lake McClure is more than 65 km. You can examine the Merced River course between latitude 37.72°N, longitude 119.63° W (central Yosemite Valley) and 37.602°N, 120.100°W (inlet to Lake McClure on the Merced River) using Google Earth. a. What sedimentary grain sizes are likely to be deposited in Lake McClure from the erosion of Yosemite Valley? b. What do you think will be the composition of most of the sedimentary grains deposited in Lake McClure from Yosemite Valley?
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