Late-glacial and postglacial pollen diagrams from Maine

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Abstract
Organic sediments from a depth of 11 ft. near Herbert, Saskatchewan, contain willow wood which has been radiocarbon dated at 10,050 + or - 300 years B.P. The sediments contain in addition to the wood a faunule of predominantly snails and ostracodes. Plant fragments are common and include a few spruce cones. Marl with abundant remains of algae (Chara) is locally present. Spores and pollen recovered from the sediment provide an insight into the type of vegetation at the Herbert site 10,000 years ago. Fauna and flora indicate sedimentation in quiet water of a pond or small lake in a spruce-pine parkland with a few northern, broadleaved trees such as birch, willows, and probably aspen. Such an environment exists today in the forest belt of Saskatchewan, 200 mi. to the N. of Herbert. The change from forest to grassland, which now prevails near Herbert, is indicated by pollen analyses of the sediments overlying the radiocarbon dated wood.