In addition to causing deformation of layering during metamorphism, pressure may actually produce layering during the formation of sedimentary rocks. For example, the sediment, mud, under pressure becomes shale, a sedimentary rock with a fairly distinct layering. Generally speaking the sources of pressure producing layering during the formation of sedimentary rocks is not the same as that causing deformation and metamorphism Examine specimen (112). What force could act on mud to produce the pressure that results in this layering? Reexamine Figure 4. What evidence is there in the illustration to indicate that the rocks have been subjected to deformation? In this situation, what is it that has produced the pressure? Describe the visual differences between shale (112) and slate (159). Can you explain these differences in terms of a metamorphic process?
In addition to causing deformation of layering during metamorphism, pressure may actually produce layering during the formation of sedimentary rocks. For example, the sediment, mud, under pressure becomes shale, a sedimentary rock with a fairly distinct layering. Generally speaking the sources of pressure producing layering during the formation of sedimentary rocks is not the same as that causing deformation and metamorphism Examine specimen (112). What force could act on mud to produce the pressure that results in this layering? Reexamine Figure 4. What evidence is there in the illustration to indicate that the rocks have been subjected to deformation? In this situation, what is it that has produced the pressure? Describe the visual differences between shale (112) and slate (159). Can you explain these differences in terms of a metamorphic process?
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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