Occurrence of microfossils in samples from the Sirius Group at Mount Fleming. Samples in bold typeface have been taken in the loose surface unit, whereas others have been taken at depth, and refer to lodgement till samples. We ran all samples twice through the microfossil extraction unit. Improvements in diatom-yield during the second run were negligible (bottom line), indicating that diagenetic processes played no significant role in observed diatom abundance distributions. Refer to figures 1 and 2 for excavation locations (ASE) and sample locations (ASF) within each pit. Given are B=barren, B-R=barren-rare (1 diatom fragment/slide), R=rare (2-9 diatom fragments/slide), A=abundant (10 diatom fragments/slide), P=present, and HW=Harwood (1986a) samples from Mount Fleming.
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