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Sedimentary deposits associated with Heinrich events are anomalously rich in detrital carbonate. Off Hudson Strait the dominant carbonate is calcite whereas at distal sites in the North Atlantic dolomite is dominant (more diagnostic?). A significant source for dolomite is its outcrop at the northern end of Baffin Bay where major ice streams from the Laurentide, Innuitian and Greenland ice sheets converged...
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