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Scholars Day 2006, Wednesday, April 12

Do Fencerows Tell a Tale?

There are times when a worker needs to obtain information about the bedrock in an area of study, and there are no outcrops in the immediate vicinity. Fencerows of Western New York State were chosen for study in that they were built in the early 1800s without the use of modern machinery to move them very far from their original position in the field. Where rocks were not removed for building materials, 86-92% of rocks in the fencerow reflect local bedrock. A lateral facies change was recorded over the length of the fencerow (1875) indicating a change in lithology of the bedrock beneath. This lateral facies change was correlated to a vertical change in the bedrock surface elevation where the bedrock was originally thought to be planed smooth glacially and the topographic elevational change was a drumlin feature. This study was done in the total absence of outcrops in the area for reference and correlation. Even though some aspects of the study are speculative, this method can be used as a quick field check of published material and geologic maps, and lend support for or argue against previous research.

Presenter: Steven Dilger (Undergraduate Student)
Topic: Geology
Location: 106A Edwards
Time: 9:15 am (Session I)

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