DEGLACIAL STRATIGRAPHY AND PALEOMAGNETISM OF THE GASKIERS-DROOK TRANSITION, AVALON PENINSULA, NEWFOUNDLAND
We report four fine-scale lithostratigraphies supporting paleomagnetic sampling of Gaskiers-Drook transition in southern Avalon, and we suggest lateral continuity of cap carbonate deposition, ranging from centimeter to decimeter scale, in three more Gaskiers outcrop belts. Anomalously fine-grained postglacial siliciclastic deposition is reddest immediately beneath the cap carbonate interval, and bed color darkens upsection. An organic-rich unit, expressed rarely as framboid-bearing black shale, culminates this fine-grained interval before massive Drook turbidites return to the succession. The 20-30 m of siltstone and shale presumably recording the deglacial aftermath of Gaskiers glaciation appears as anomalous, in the Avalonian succession, as the diamictite sequence itself.