Late Wisconsin periglacial environments of the southern margin of the Laurentide Ice Sheet reconstructed from pollen analyses | Zendy

Heusser Linda | Zendy; MaenzaGmelch Terryanne | Zendy; Lowell Thomas | Zendy; Hinnefeld Rebecca | Zendy

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Late Wisconsin periglacial environments of the southern margin of the Laurentide Ice Sheet reconstructed from pollen analyses

Author(s) -

Heusser Linda,

MaenzaGmelch Terryanne,

Lowell Thomas,

Hinnefeld Rebecca

Publication year - 2002

Publication title -

journal of quaternary science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.142

H-Index - 94

eISSN - 1099-1417

pISSN - 0267-8179

DOI - 10.1002/jqs.688

Subject(s) - stadial , geology , pollen , glacial period , deciduous , ice sheet , tundra , taiga , physical geography , vegetation (pathology) , boreal , geomorphology , paleontology , oceanography , forestry , ecology , geography , arctic , medicine , pathology , biology

Full‐glacial pollen assemblages from four radiocarbon‐dated interstadial deposits in southwestern Ohio and southeastern Indiana imply the presence of herbaceous vegetation (tundra or muskeg with subarctic indicator Selaginella selaginoides ) on the southern margin of the Miami lobe of the Laurentide Ice Sheet ca. 20 000 14 C yr BP. Scattered Picea (spruce) and possibly Pinus (pine) may have developed regionally ca. 19 000 14 C yr BP, and ca. 18 000 14 C yr BP, respectively. Spruce stumps in growth position support a local source of pollen. Prior to the ca. 14 000 14 C yr BP glacial advance, small amounts of Quercus (oak) and other deciduous pollen suggest development of regional boreal (conifer–hardwood) forests. Copyright © 2002 John Wiley & Sons, Ltd.

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