Published online in Wiley InterScience (www.interscience.wiley.com). DOI:10.1002/jqs.905 Late Pleistocene Palaeoenvironments of the
ABSTRACT: Macroscopic plant remains, pollen, insect and mollusc fossils recovered from a cut bank on the Red River in North Dakota, USA, provide evidence that an extensive wetland occupied the southern basin of Lake Agassiz from 10230 to 9900 14C yr BP. Marsh-dwelling plants and inver-tebrates had c...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.561.8307 2023-05-15T15:07:37+02:00 Published online in Wiley InterScience (www.interscience.wiley.com). DOI:10.1002/jqs.905 Late Pleistocene Palaeoenvironments of the Catherine H. Yansa Allan C. Ashworth The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.561.8307 en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.561.8307 Metadata may be used without restrictions as long as the oai identifier remains attached to it. https://www.msu.edu/~yansa/Yansa_Ashworth 2005.pdf Lake Agassiz North Dakota pollen plant macrofossils fossil beetles and molluscs Younger Dryas–Holocene text ftciteseerx 2016-01-08T12:04:53Z ABSTRACT: Macroscopic plant remains, pollen, insect and mollusc fossils recovered from a cut bank on the Red River in North Dakota, USA, provide evidence that an extensive wetland occupied the southern basin of Lake Agassiz from 10230 to 9900 14C yr BP. Marsh-dwelling plants and inver-tebrates had colonised the surface of a prograding delta during the low-water Moorhead Phase of Lake Agassiz. A species of Salix (willow) was abundant along distributary channels, and stands of Populus tremuloides (aspen), Ulmus sp. (elm), Betula sp. (birch), and Picea sp. (spruce) grew on the better-drained sand bars and beach ridges. Most of the species of plants, insects, and molluscs represented as fossils are within their existing geographic ranges. Based on a few species with more northerly distributions, mean summer temperature may have been about 1–2 C lower than the pre-sent day. No change in species composition occurred in the transition from the Younger Dryas to Preboreal. At the time that the wetland existed, Lake Agassiz was draining either eastward to the North Atlantic Ocean or northwestward to the Arctic Ocean. The wetland was drowned during Text Arctic Arctic Ocean North Atlantic Unknown Arctic Arctic Ocean Cut Bank ENVELOPE(-115.902,-115.902,55.517,55.517) |
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Open Polar |
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Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Lake Agassiz North Dakota pollen plant macrofossils fossil beetles and molluscs Younger Dryas–Holocene |
spellingShingle |
Lake Agassiz North Dakota pollen plant macrofossils fossil beetles and molluscs Younger Dryas–Holocene Catherine H. Yansa Allan C. Ashworth Published online in Wiley InterScience (www.interscience.wiley.com). DOI:10.1002/jqs.905 Late Pleistocene Palaeoenvironments of the |
topic_facet |
Lake Agassiz North Dakota pollen plant macrofossils fossil beetles and molluscs Younger Dryas–Holocene |
description |
ABSTRACT: Macroscopic plant remains, pollen, insect and mollusc fossils recovered from a cut bank on the Red River in North Dakota, USA, provide evidence that an extensive wetland occupied the southern basin of Lake Agassiz from 10230 to 9900 14C yr BP. Marsh-dwelling plants and inver-tebrates had colonised the surface of a prograding delta during the low-water Moorhead Phase of Lake Agassiz. A species of Salix (willow) was abundant along distributary channels, and stands of Populus tremuloides (aspen), Ulmus sp. (elm), Betula sp. (birch), and Picea sp. (spruce) grew on the better-drained sand bars and beach ridges. Most of the species of plants, insects, and molluscs represented as fossils are within their existing geographic ranges. Based on a few species with more northerly distributions, mean summer temperature may have been about 1–2 C lower than the pre-sent day. No change in species composition occurred in the transition from the Younger Dryas to Preboreal. At the time that the wetland existed, Lake Agassiz was draining either eastward to the North Atlantic Ocean or northwestward to the Arctic Ocean. The wetland was drowned during |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Catherine H. Yansa Allan C. Ashworth |
author_facet |
Catherine H. Yansa Allan C. Ashworth |
author_sort |
Catherine H. Yansa |
title |
Published online in Wiley InterScience (www.interscience.wiley.com). DOI:10.1002/jqs.905 Late Pleistocene Palaeoenvironments of the |
title_short |
Published online in Wiley InterScience (www.interscience.wiley.com). DOI:10.1002/jqs.905 Late Pleistocene Palaeoenvironments of the |
title_full |
Published online in Wiley InterScience (www.interscience.wiley.com). DOI:10.1002/jqs.905 Late Pleistocene Palaeoenvironments of the |
title_fullStr |
Published online in Wiley InterScience (www.interscience.wiley.com). DOI:10.1002/jqs.905 Late Pleistocene Palaeoenvironments of the |
title_full_unstemmed |
Published online in Wiley InterScience (www.interscience.wiley.com). DOI:10.1002/jqs.905 Late Pleistocene Palaeoenvironments of the |
title_sort |
published online in wiley interscience (www.interscience.wiley.com). doi:10.1002/jqs.905 late pleistocene palaeoenvironments of the |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.561.8307 |
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ENVELOPE(-115.902,-115.902,55.517,55.517) |
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Arctic Arctic Ocean Cut Bank |
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Arctic Arctic Ocean Cut Bank |
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Arctic Arctic Ocean North Atlantic |
genre_facet |
Arctic Arctic Ocean North Atlantic |
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https://www.msu.edu/~yansa/Yansa_Ashworth 2005.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.561.8307 |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766339080082161664 |