Field Notebook: Arctic 1990a
Page 105
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Transcription
90 [+30cm PMAG ECS-91] Unit #122 #113 1:60m [Pollen Sample ECS-90-SO (+1.2m up base)] Black fissile clay, mudstone. Very roots very in last 20cm - canal root? (Note: unmixed with muddy ss Transition zone at base = 10cm (upper SS v. burrowed) Interpr. Pample mudflat, deep lagoon/swamp Unit #123 #114 1D. 10m +40cm Sample ECS-90-S1 Dark transitional sample f. 10 -> mangro Fissile, wet grey shale slightly fossil