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Pollen Analysis of Deeply Buried Quaternary Sediments from Southern Michigan

Norton G. Miller
The American Midland Naturalist
Vol. 89, No. 1 (Jan., 1973), pp. 217-223
DOI: 10.2307/2424151
Stable URL: http://www.jstor.org/stable/2424151
Page Count: 7
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Pollen Analysis of Deeply Buried Quaternary Sediments from Southern Michigan
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Abstract

Samples of peat and clay recovered from deep beneath glacial drift in the Saginaw lobe region of S-central Michigan have pollen assemblages dominated by Pinus, Picea, Betula, Cyperaceae and Gramineae. These agree with pollen accumulations at the surface in the boreal forest region of Canada SE of James Bay between 51 and 48⚬ N Lat and with pollen spectra from "pre-classical" Wisconsin peats and inorganic sediments recently found near Grand Rapids in western Michigan. A combined sample of the peat and clay has been radiocarbon-dated at >32,000 years B.P. Correlation with the mid-Wisconsin Port Talbot interstade is considered plausible but not certain in the absence of a finite age determination.

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