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[[stamped]]0594[[/stamped]]
26

[[margin]]There is a pencil drawing in the margin of seven rectangles representing the various layers found. Each rectangle has been labelled with what was found[[/margin]]

May 21 

Porterfield quarry 5 miles east of Saltville, Virginia.

Knox is exposed near the office on the quarry grounds but Lenoir appears not far above it. The lower part of the quarry is in Lenoir and is followed by Holston. This Holston is overlaid by Whitesburg followed again by Holston faulted over. The Whitesburg above the Holston occur 3 layers of marble, lenses in the Whitesburg. These are followed by Athens shale.

The second Holston mass seems to me to be a typical Paleozoic bioherm with fragmented bryozoa, cystids and crinoids all massed together. To me there seemed to be no fault but the second Holston marble was a reef in the Whitesburg. The beds overlying the reef lens out into the Whitesburg.

After collecting at the quarry we studied Ottosee limestone north of Marion and collected Orthorhynchula near the top of the mountain above the Ottosee.