Field Notebook: Nova Scotia, Quebec, Vermont 1924, 1928, 1932, 1933
Page 44
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Transcription
Wea. TUES. FEB. 9, 1909 Ther. is a dried bed - now red clay with Stipmaria which are transformed into limonite. Beneath the Stipmaria the red clay is free of green fillips of the Stipmaria roots. On the line that has preserved the Stipmaria. Elsewhere one sees the outlets of Stipmaria without the Stip maria themselves. The li, must be late deposits, dust clear into them, and the li. pre-cipitated many things algal or other plant growth. Have a piece, and it ought to be studied physically and chemically, because of its desert character. The thickness of the beds was regular across the beach - several hundred feet across and flat bottomed. Evidently the lakes had considerable extent, but shallower and at first a swamp of lagoons. On the beach slopes, at lower tide, on sand bottom one sees a sort of current ripples, the crests of which are are truncated. These flat tops may be 9/4 inch up to 1 1/2 inches across. The ripple bottoms are acute and often deeper than usual. This type of rippling is also seen in these Pennsylvania deposits. They an indicator of very shallow water on which the wind is flaring, and flaring.