Pollen and macrofossils profiles and age determination from the Pittsburg Basin in the lowlands of south-central Illinois
Pollen and macrofossil evidence for the nature of the vegetation during glacial and interglacial periods in the regions south of the Wisconsinan ice margin is still very scarce. Modern opinions concerning these problems are therefore predominantly derived from geological evidence only or are extrapo...
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1972
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.714979 2023-05-15T15:17:30+02:00 Pollen and macrofossils profiles and age determination from the Pittsburg Basin in the lowlands of south-central Illinois Grüger, Eberhard LATITUDE: 38.904160 * LONGITUDE: -89.187500 * DATE/TIME START: 1968-04-08T00:00:00 * DATE/TIME END: 1968-04-08T00:00:00 1972-05-11 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.714979 https://doi.org/10.1594/PANGAEA.714979 en eng PANGAEA Grüger, Eberhard (1972): Late quaternary vegetation development in south-central Illinois. Quaternary Research, 2(2), 217-231, https://doi.org/10.1016/0033-5894(72)90040-3 https://doi.pangaea.de/10.1594/PANGAEA.714979 https://doi.org/10.1594/PANGAEA.714979 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Illinois United States of America Livingstone piston sampler LPS PBBVANDA Pittsburg_Basin Dataset 1972 ftpangaea https://doi.org/10.1594/PANGAEA.714979 https://doi.org/10.1016/0033-5894(72)90040-3 2023-01-20T07:31:24Z Pollen and macrofossil evidence for the nature of the vegetation during glacial and interglacial periods in the regions south of the Wisconsinan ice margin is still very scarce. Modern opinions concerning these problems are therefore predominantly derived from geological evidence only or are extrapolated from pollen studies of late Wisconsinan deposits. Now for the first time pollen and macrofossil analyses are available from south-central Illinois covering the Holocene, the entire Wisconsinan, and most probably also Sangamonian and late Illinoian time. The cores studied came from three lakes, which originated as kettle holes in glacial drift of Illinoian age near Vandalia, Fayette County. The Wisconsinan ice sheet approached the sites from the the north to within about 60 km distance only. One of the profiles (Pittsburg Basin) probably reaches back to the late Illinoian (zone 1), which was characterized by forests with much Picea. Zone 2, most likely of Sangamonian age, represents a period of species-rich deciduous forests, which must have been similar to the ones that thrive today south and southeast of the prairie peninsula. During the entire Wisconsinan (14C dates ranging from 38,000 to 21,000 BP) thermophilous deciduous trees like Quercus, Carya, and Ulmus occurred in the region, although temporarily accompanied by tree genera with a more northerly modern distribution, such as Picea, which entered and then left south-central Illinois during the Woodfordian. Thus it is evident that arctic climatic conditions did not prevail in the lowlands of south-central Illinois (about 38°30' lat) during the Wisconsinan, even at the time of the maximum glaciation, the Woodfordian. The Wisconsinan was, however, not a period of continuous forest. The pollen assemblages of zone 3 (Altonian) indicate prairie with stands of trees, and in zone 4 the relatively abundant Artemisia pollen indicates the existence of open vegetation and stands of deciduous trees, Picea, and Pinus. True tundra may have existed north of the sites, but ... Dataset Arctic Ice Sheet Tundra PANGAEA - Data Publisher for Earth & Environmental Science Arctic Livingstone ENVELOPE(-134.337,-134.337,61.333,61.333) ENVELOPE(-89.187500,-89.187500,38.904160,38.904160) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Illinois United States of America Livingstone piston sampler LPS PBBVANDA Pittsburg_Basin |
spellingShingle |
Illinois United States of America Livingstone piston sampler LPS PBBVANDA Pittsburg_Basin Grüger, Eberhard Pollen and macrofossils profiles and age determination from the Pittsburg Basin in the lowlands of south-central Illinois |
topic_facet |
Illinois United States of America Livingstone piston sampler LPS PBBVANDA Pittsburg_Basin |
description |
Pollen and macrofossil evidence for the nature of the vegetation during glacial and interglacial periods in the regions south of the Wisconsinan ice margin is still very scarce. Modern opinions concerning these problems are therefore predominantly derived from geological evidence only or are extrapolated from pollen studies of late Wisconsinan deposits. Now for the first time pollen and macrofossil analyses are available from south-central Illinois covering the Holocene, the entire Wisconsinan, and most probably also Sangamonian and late Illinoian time. The cores studied came from three lakes, which originated as kettle holes in glacial drift of Illinoian age near Vandalia, Fayette County. The Wisconsinan ice sheet approached the sites from the the north to within about 60 km distance only. One of the profiles (Pittsburg Basin) probably reaches back to the late Illinoian (zone 1), which was characterized by forests with much Picea. Zone 2, most likely of Sangamonian age, represents a period of species-rich deciduous forests, which must have been similar to the ones that thrive today south and southeast of the prairie peninsula. During the entire Wisconsinan (14C dates ranging from 38,000 to 21,000 BP) thermophilous deciduous trees like Quercus, Carya, and Ulmus occurred in the region, although temporarily accompanied by tree genera with a more northerly modern distribution, such as Picea, which entered and then left south-central Illinois during the Woodfordian. Thus it is evident that arctic climatic conditions did not prevail in the lowlands of south-central Illinois (about 38°30' lat) during the Wisconsinan, even at the time of the maximum glaciation, the Woodfordian. The Wisconsinan was, however, not a period of continuous forest. The pollen assemblages of zone 3 (Altonian) indicate prairie with stands of trees, and in zone 4 the relatively abundant Artemisia pollen indicates the existence of open vegetation and stands of deciduous trees, Picea, and Pinus. True tundra may have existed north of the sites, but ... |
format |
Dataset |
author |
Grüger, Eberhard |
author_facet |
Grüger, Eberhard |
author_sort |
Grüger, Eberhard |
title |
Pollen and macrofossils profiles and age determination from the Pittsburg Basin in the lowlands of south-central Illinois |
title_short |
Pollen and macrofossils profiles and age determination from the Pittsburg Basin in the lowlands of south-central Illinois |
title_full |
Pollen and macrofossils profiles and age determination from the Pittsburg Basin in the lowlands of south-central Illinois |
title_fullStr |
Pollen and macrofossils profiles and age determination from the Pittsburg Basin in the lowlands of south-central Illinois |
title_full_unstemmed |
Pollen and macrofossils profiles and age determination from the Pittsburg Basin in the lowlands of south-central Illinois |
title_sort |
pollen and macrofossils profiles and age determination from the pittsburg basin in the lowlands of south-central illinois |
publisher |
PANGAEA |
publishDate |
1972 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.714979 https://doi.org/10.1594/PANGAEA.714979 |
op_coverage |
LATITUDE: 38.904160 * LONGITUDE: -89.187500 * DATE/TIME START: 1968-04-08T00:00:00 * DATE/TIME END: 1968-04-08T00:00:00 |
long_lat |
ENVELOPE(-134.337,-134.337,61.333,61.333) ENVELOPE(-89.187500,-89.187500,38.904160,38.904160) |
geographic |
Arctic Livingstone |
geographic_facet |
Arctic Livingstone |
genre |
Arctic Ice Sheet Tundra |
genre_facet |
Arctic Ice Sheet Tundra |
op_relation |
Grüger, Eberhard (1972): Late quaternary vegetation development in south-central Illinois. Quaternary Research, 2(2), 217-231, https://doi.org/10.1016/0033-5894(72)90040-3 https://doi.pangaea.de/10.1594/PANGAEA.714979 https://doi.org/10.1594/PANGAEA.714979 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.714979 https://doi.org/10.1016/0033-5894(72)90040-3 |
_version_ |
1766347744099696640 |