1. Explain that this is the first of two essays that will describe and interpret the data collected during the lab field trip.
2. Explain that this essay will introduce the location, stratigraphy, and describe the characteristics of two environments typical of this formation.
3. Explain that the second essay will present the data collected and interpret the data.
4. Give a hypothesis that the data presented in the second essay will match one of the two environments described.
5. Give the location of the outcrop in reference to roads, towns, milemarker, the Ohio River, and the Township and Range location.
6. Explain the stratigraphy by explaining the geological age and the name of the group to which the sediments belong. Give the names of the two thin limestone layers that are in the group.
7. Give a very brief description of the types of sediments that were encountered (like alternating layers of shale, limestone, sandstone, and coal).
8. Explain that the types of environments typical of the Conemaugh group include meandering river floodplains and delta sequences. Reference the source of this information (Collins and Smith, 1977) and put a citation in your sentence just like the one in this sentence. Put it at the end of the sentence where you made the statement.
9. Explain that two websites listed at the end of the essay are being used to provide details about the characteristics of a point bar sequence and a prograding delta sequence.
10. Describe a meandering stream environment by: a) defining what a meandering stream is; b) describe the processes on a meandering stream (e.g. cut bank erosion, point bar deposition); c) explain the pattern of a meandering river point bar sequence being a fining upward sequence; d) explain that this is caused by progradation of the point bar resulting in a scoured surface with progressively finer sand and mud deposited above, then eventually floodplain shales with mudcracks, roots, and coals.
11. Describe a delta environment by: a) defining what a delta is; b) describing the processes that result in delta deposition; c) explain the pattern of a prograding delta sequence being a coarsening upward sequence; d) explain that this is caused by progradation of the delta resulting in very fine prodelta sediments at the base and progressively coarser silt and sand deposited above, up to the distributary mouth bar. Above that, you can get distributary river sands similar to river channel sands.
12. Finish with a statement that the second essay will describe the data collected and compare them to these two models.
13. List the two websites provided.
14. Give the citation for Collins and Smith (1977) as follows:
Collins, H.R., and Smith, B.E., 1977, Geology and Mineral Resources of Washington County, Ohio: Ohio Department of Natural Resources Division of Geological Survey, Bulletin 66, 134 p.
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