Figure 13. Coarse-grained metamorphic sandstone beds separated by a metamorphic siltstone that is spanned by the mechanical pencil. The interior of the siltstone bed adjacent to the pencil appears to have faint undulatory bedding. Tracking the bed toward the upper right corner, the siltstone is eroded in its core and shows what may be the trace of undulatory bedding. The undulatory surface could represent ripple marks, or possibly deformation by syndepositional slump folds. If so it would suggest the top of the beds is to the upper left corner of the photo. Kingfield Elementary School, Kingfield, Maine.

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Last updated on November 13, 2006

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