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Rock Type: For this column, you want to include the basic sedimentary rock type (most of the samples will be sandstone shales, or limestones). Name of the sedimentary structure: For this column, you want to be as specific as possible (for example: if the structure present is ripple marks, specific with respect to the type of ripples- if possible). Be aware that some samples may contain more than on structure. You will need to include all of the structures present in the samples (None of the samples cont more than two samples). Inorganic or Biogenic: This column refers, in part, to how the structure forms. Did the structure form as a result of the activity of a living organism? If it did, then the structure is biogenic. Examples of biogenic structures include tracks, trail, burrows, etc. If a living organism was NOT involved in the formation of the structure, then the structure is inorganic. Interpret the environment of deposition:

Rock Type: For this column, you want to include the basic sedimentary rock type (most of the samples will be sandstone shales, or limestones). Name of the sedimentary structure: For this column, you want to be as specific as possible (for example: if the structure present is ripple marks, specific with respect to the type of ripples- if possible). Be aware that some samples may contain more than on structure. You will need to include all of the structures present in the samples (None of the samples cont more than two samples). Inorganic or Biogenic: This column refers, in part, to how the structure forms. Did the structure form as a result of the activity of a living organism? If it did, then the structure is biogenic. Examples of biogenic structures include tracks, trail, burrows, etc. If a living organism was NOT involved in the formation of the structure, then the structure is inorganic. Interpret the environment of deposition:

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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Rock Type: For this column, you want to include the basic sedimentary rock type (most of the samples will be sandstones, shales, or limestones). Name of the sedimentary structure: For this column, you want to be as specific as possible (for example: if the structure present is ripple marks, be specific with respect to the type of ripples- if possible). Be aware that some samples may contain more than on structure. You will need to include all of the structures present in the samples (None of the samples contain more than two samples). Inorganic or Biogenic: This column refers, in part, to how the structure forms. Did the structure form as a result of the activity of a living organism? If it did, then the structure is biogenic. Examples of biogenic structures include tracks, trail, burrows, etc. If a living organism was NOT involved in the formation of the structure, then the structure is inorganic. Interpret the environment of deposition: This last column asks you to interpret the environment of deposition (where the structure formed). What does the structure tell you about the environment of deposition? For example, asymmetrical ripples form as a result of unidirectional currents (usually water or wind that is moving in one direction). Unidirectional currents mostly occur in environments like streams and deserts (where there is a prevailing wind direction). Mudcracks tell you that you have an environment with alternating wet and dry conditions. Again, refer to the lab manual or PowerPoint to help you with the interpretation part (or you can always ask me).
Transcribed Image Text:Rock Type: For this column, you want to include the basic sedimentary rock type (most of the samples will be sandstones, shales, or limestones). Name of the sedimentary structure: For this column, you want to be as specific as possible (for example: if the structure present is ripple marks, be specific with respect to the type of ripples- if possible). Be aware that some samples may contain more than on structure. You will need to include all of the structures present in the samples (None of the samples contain more than two samples). Inorganic or Biogenic: This column refers, in part, to how the structure forms. Did the structure form as a result of the activity of a living organism? If it did, then the structure is biogenic. Examples of biogenic structures include tracks, trail, burrows, etc. If a living organism was NOT involved in the formation of the structure, then the structure is inorganic. Interpret the environment of deposition: This last column asks you to interpret the environment of deposition (where the structure formed). What does the structure tell you about the environment of deposition? For example, asymmetrical ripples form as a result of unidirectional currents (usually water or wind that is moving in one direction). Unidirectional currents mostly occur in environments like streams and deserts (where there is a prevailing wind direction). Mudcracks tell you that you have an environment with alternating wet and dry conditions. Again, refer to the lab manual or PowerPoint to help you with the interpretation part (or you can always ask me).
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