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A METHOD FOR DETERMINING ABSOLUTE POLLEN FREQUENCIES IN LAKE SEDIMENTS
Author(s) -
BONNY ANNE P.
Publication year - 1972
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1972.tb04086.x
Subject(s) - pollen , statistical error , sediment , environmental science , approximation error , statistics , geology , paleontology , biology , botany , mathematics
S ummary A detailed account is given of the procedure required to obtain an estimate of fossil pollen per unit volume of sediment, using a method, outlined by previous workers, which involves the addition of a known number of exotic or ‘marker’ pollen grains. Sources of error in the method are discussed and statistical tests for certain errors are included. Details are given of calculations whereby confidence limits are obtained for the counting error of fossil pollen concentration. Absolute pollen counts obtained by means of this method from a Late‐Weichselian profile of lake sediments provide additional information for the expenditure of little extra time.