Field Notebook: Minnesota, Wisconsin, Iowa, Illinois, Pennsylvania
Page 56
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Transcription
and then the Jordan sandstone forming the Great Fluff in about ten feet. Preston Minin Monday Aug. 10-91, Packed two boxes and sent them on to Minin. Then drove through the valley towards Fountain near the village, the road rises rapidly and passes through the Twenty-one shales and Salma. Then drive over to Ellie Duncan's place and collected in the Trenton shales. Found the gastropods very abundant. Salma Limestone 10 feet Shale 24-30 inches. Fossiliferous. Limestone about 2 feet Green shales non-fossiliferous 10-15 feet