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C. Figure A10.2.2 is an oblique view of a small outcrop of fine-grained layered rock that contains fossils. The layers probably represent bedding planes. The layers are inclined and the sense of inclination can be determined by noticing the water in the lower-left corner of the photograph. 1. Using the water line as a guide, carefully draw a strike line near the top of one of the flat layers using the black-and-white image for your drawing. (Make sure your teacher can see the strike line you draw.) Remember that a strike line is a horizontal line on the inclined surface and that the water is a horizontal surface. 2. Examine the photograph carefully and imagine a ball rolling down the inclined surface. Now draw what you infer to be a dip vector extending from the strike line using the black-and-white image for your drawing. 3. Identify which end of the strike line points toward the Right-Hand-Rule reference strike. Label that end of the strike line with "RHR." Refer to Fig. 10.2 for help visualizing the RHR reference strike.

C. Figure A10.2.2 is an oblique view of a small outcrop of fine-grained layered rock that contains fossils. The layers probably represent bedding planes. The layers are inclined and the sense of inclination can be determined by noticing the water in the lower-left corner of the photograph. 1. Using the water line as a guide, carefully draw a strike line near the top of one of the flat layers using the black-and-white image for your drawing. (Make sure your teacher can see the strike line you draw.) Remember that a strike line is a horizontal line on the inclined surface and that the water is a horizontal surface. 2. Examine the photograph carefully and imagine a ball rolling down the inclined surface. Now draw what you infer to be a dip vector extending from the strike line using the black-and-white image for your drawing. 3. Identify which end of the strike line points toward the Right-Hand-Rule reference strike. Label that end of the strike line with "RHR." Refer to Fig. 10.2 for help visualizing the RHR reference strike.

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
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C. Figure A10.2.2 is an oblique view of a small outcrop of fine-grained layered rock that contains fossils. The layers probably represent bedding planes. The layers are inclined and the sense of inclination can be determined by noticing the water in the lower-left corner of the photograph. 1. Using the water line as a guide, carefully draw a strike line near the top of one of the flat layers using the black-and-white image for your drawing. (Make sure your teacher can see the strike line you draw.) Remember that a strike line is a horizontal line on the inclined surface and that the water is a horizontal surface. 2. Examine the photograph carefully and imagine a ball rolling down the inclined surface. Now draw what you infer to be a dip vector extending from the strike line using the black-and-white image for your drawing. 3. Identify which end of the strike line points toward the Right-Hand-Rule reference strike. Label that end of the strike line with "RHR." Refer to Fig. 10.2 for help visualizing the RHR reference strike. 4. Let's assume that the geoscientist was pointing the camera due north when this photograph was taken. In what general direction do these beds dip? 5. You cannot directly measure the dip angle in this view, but you can estimate the dip angle within perhaps 10° or so. About what is the dip angle of these beds?
Transcribed Image Text:C. Figure A10.2.2 is an oblique view of a small outcrop of fine-grained layered rock that contains fossils. The layers probably represent bedding planes. The layers are inclined and the sense of inclination can be determined by noticing the water in the lower-left corner of the photograph. 1. Using the water line as a guide, carefully draw a strike line near the top of one of the flat layers using the black-and-white image for your drawing. (Make sure your teacher can see the strike line you draw.) Remember that a strike line is a horizontal line on the inclined surface and that the water is a horizontal surface. 2. Examine the photograph carefully and imagine a ball rolling down the inclined surface. Now draw what you infer to be a dip vector extending from the strike line using the black-and-white image for your drawing. 3. Identify which end of the strike line points toward the Right-Hand-Rule reference strike. Label that end of the strike line with "RHR." Refer to Fig. 10.2 for help visualizing the RHR reference strike. 4. Let's assume that the geoscientist was pointing the camera due north when this photograph was taken. In what general direction do these beds dip? 5. You cannot directly measure the dip angle in this view, but you can estimate the dip angle within perhaps 10° or so. About what is the dip angle of these beds?
Figure A10.2.2 White glint off a film of ice on water
Transcribed Image Text:Figure A10.2.2 White glint off a film of ice on water
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