Abstract

A study was carried out In Nipigon Bay, Lake Superior, to evaluate the use of paleomagnetic curves in correlating late Quaternary stratigraphic sequences from a variety of sedimentary environments within a limited geographic area. Oscillations of the paleodeclination and paleoinclination curves result from secular variations of the earth's magnetic field with time, so any correlation horizons picked on the character of either of these curves could be used for chrono-stratigraphic correlation from one core to another within Nipigon Bay. High-resolution paleodeclination and paleoinclination curves were compiled for cores taken from six fluvial, estuarine and lacustrine sites. Both the paleodeclination and the paleoinclination curves show marginal correlation for cores taken from within a specific sedimentary environment and reasonable correlation for cores taken from different sedimentary environments. Paleomagnetic curves can be used for chrono-stratigraphic correlation and in addition show considerable promise as a method for absolute age dating of late Quaternary stratigraphic sequences.

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