Diatom, pollen, and geochemical evidence for the palaeosalinity of Medicine Lake, S. Dakota, during the late-Wisconsin and early Holocene
Identifieur interne : 001854 ( Main/Exploration ); précédent : 001853; suivant : 001855Diatom, pollen, and geochemical evidence for the palaeosalinity of Medicine Lake, S. Dakota, during the late-Wisconsin and early Holocene
Auteurs : Nancy Radle [États-Unis] ; Claire M. Keister [États-Unis] ; Richard W. Battarbee [États-Unis, Royaume-Uni]Source :
- Journal of Paleolimnology [ 0921-2728 ] ; 1989-09-01.
Abstract
Abstract: Medicine Lake is a highly saline meromictic lake in eastern South Dakota. A lithostratigraphic and biostratigraphic study of the late-glacial and early post-glacial sediments shows that it was a relatively deep dilute freshwater lake during the period of the Picea pollen zone. When spruce forest changed to a Betula and then to a Quercus/Ulmus woodland in the early post-glacial period, the lake water became more concentrated but remained fresh. However, during the subsequent rapid transition to prairie in the early Holocene, when Gramineae, Ambrosia, and Artemisia dominated dry-land vegetation, the freshwater diatom flora was progressively replaced by a saline assemblage characterized by Cyclotella quillensis, Chaetoceros, and eventually Cyclotella caspia. The lake became permanently saline at about 9000 yr BP. A comparison of the fossil diatom assemblages with surface-sediment samples from a range of lakes in the Dakotas indicates that the change involved an increase in conductivity from about 500 μS cm−1 in the late-glacial period to > 10 000 μS cm−1 in the early Holocene. This rapid change is also marked by an abrupt increase in sulphate concentration in the sediment, the first appearance of bands of gypsum crystals, and the beginning of a well-laminated core sequence that continues through the remaining sediment record. Conditions of high salinity have prevailed to the present day.
Url:
DOI: 10.1007/BF00202044
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000233
- to stream Istex, to step Curation: 000233
- to stream Istex, to step Checkpoint: 001406
- to stream Main, to step Merge: 001885
- to stream Main, to step Curation: 001854
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Diatom, pollen, and geochemical evidence for the palaeosalinity of Medicine Lake, S. Dakota, during the late-Wisconsin and early Holocene</title><author><name sortKey="Radle, Nancy" sort="Radle, Nancy" uniqKey="Radle N" first="Nancy" last="Radle">Nancy Radle</name></author><author><name sortKey="Keister, Claire M" sort="Keister, Claire M" uniqKey="Keister C" first="Claire M." last="Keister">Claire M. Keister</name></author><author><name sortKey="Battarbee, Richard W" sort="Battarbee, Richard W" uniqKey="Battarbee R" first="Richard W." last="Battarbee">Richard W. Battarbee</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:2B45A972A3CCED84A68EE1BB3CE5AA00892D31C0</idno><date when="1989" year="1989">1989</date><idno type="doi">10.1007/BF00202044</idno><idno type="url">https://api.istex.fr/document/2B45A972A3CCED84A68EE1BB3CE5AA00892D31C0/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000233</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000233</idno><idno type="wicri:Area/Istex/Curation">000233</idno><idno type="wicri:Area/Istex/Checkpoint">001406</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">001406</idno><idno type="wicri:doubleKey">0921-2728:1989:Radle N:diatom:pollen:and</idno><idno type="wicri:Area/Main/Merge">001885</idno><idno type="wicri:Area/Main/Curation">001854</idno><idno type="wicri:Area/Main/Exploration">001854</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Diatom, pollen, and geochemical evidence for the palaeosalinity of Medicine Lake, S. Dakota, during the late-Wisconsin and early Holocene</title><author><name sortKey="Radle, Nancy" sort="Radle, Nancy" uniqKey="Radle N" first="Nancy" last="Radle">Nancy Radle</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Limnological Research Center, University of Minnesota, 55455, Minneapolis, MN</wicri:regionArea><placeName><region type="state">Minnesota</region></placeName></affiliation></author><author><name sortKey="Keister, Claire M" sort="Keister, Claire M" uniqKey="Keister C" first="Claire M." last="Keister">Claire M. Keister</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Limnological Research Center, University of Minnesota, 55455, Minneapolis, MN</wicri:regionArea><placeName><region type="state">Minnesota</region></placeName></affiliation></author><author><name sortKey="Battarbee, Richard W" sort="Battarbee, Richard W" uniqKey="Battarbee R" first="Richard W." last="Battarbee">Richard W. Battarbee</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Limnological Research Center, University of Minnesota, 55455, Minneapolis, MN</wicri:regionArea><placeName><region type="state">Minnesota</region></placeName></affiliation><affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Palaeoecology Research Unit, University College London, 26 Bedford Way, WC1H OAP, London</wicri:regionArea><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName><orgName type="university">University College de Londres</orgName></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Paleolimnology</title><title level="j" type="abbrev">J Paleolimnol</title><idno type="ISSN">0921-2728</idno><idno type="eISSN">1573-0417</idno><imprint><publisher>Kluwer Academic Publishers</publisher><pubPlace>Dordrecht</pubPlace><date type="published" when="1989-09-01">1989-09-01</date><biblScope unit="volume">2</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="159">159</biblScope><biblScope unit="page" to="172">172</biblScope></imprint><idno type="ISSN">0921-2728</idno></series><idno type="istex">2B45A972A3CCED84A68EE1BB3CE5AA00892D31C0</idno><idno type="DOI">10.1007/BF00202044</idno><idno type="ArticleID">BF00202044</idno><idno type="ArticleID">Art1</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0921-2728</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Medicine Lake is a highly saline meromictic lake in eastern South Dakota. A lithostratigraphic and biostratigraphic study of the late-glacial and early post-glacial sediments shows that it was a relatively deep dilute freshwater lake during the period of the Picea pollen zone. When spruce forest changed to a Betula and then to a Quercus/Ulmus woodland in the early post-glacial period, the lake water became more concentrated but remained fresh. However, during the subsequent rapid transition to prairie in the early Holocene, when Gramineae, Ambrosia, and Artemisia dominated dry-land vegetation, the freshwater diatom flora was progressively replaced by a saline assemblage characterized by Cyclotella quillensis, Chaetoceros, and eventually Cyclotella caspia. The lake became permanently saline at about 9000 yr BP. A comparison of the fossil diatom assemblages with surface-sediment samples from a range of lakes in the Dakotas indicates that the change involved an increase in conductivity from about 500 μS cm−1 in the late-glacial period to > 10 000 μS cm−1 in the early Holocene. This rapid change is also marked by an abrupt increase in sulphate concentration in the sediment, the first appearance of bands of gypsum crystals, and the beginning of a well-laminated core sequence that continues through the remaining sediment record. Conditions of high salinity have prevailed to the present day.</div></front></TEI><affiliations><list><country><li>Royaume-Uni</li><li>États-Unis</li></country><region><li>Angleterre</li><li>Grand Londres</li><li>Minnesota</li></region><settlement><li>Londres</li></settlement><orgName><li>University College de Londres</li></orgName></list><tree><country name="États-Unis"><region name="Minnesota"><name sortKey="Radle, Nancy" sort="Radle, Nancy" uniqKey="Radle N" first="Nancy" last="Radle">Nancy Radle</name></region><name sortKey="Battarbee, Richard W" sort="Battarbee, Richard W" uniqKey="Battarbee R" first="Richard W." last="Battarbee">Richard W. Battarbee</name><name sortKey="Keister, Claire M" sort="Keister, Claire M" uniqKey="Keister C" first="Claire M." last="Keister">Claire M. Keister</name></country><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Battarbee, Richard W" sort="Battarbee, Richard W" uniqKey="Battarbee R" first="Richard W." last="Battarbee">Richard W. Battarbee</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Bois/explor/CheneBelgiqueV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001854 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 001854 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Bois
|area= CheneBelgiqueV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:2B45A972A3CCED84A68EE1BB3CE5AA00892D31C0
|texte= Diatom, pollen, and geochemical evidence for the palaeosalinity of Medicine Lake, S. Dakota, during the late-Wisconsin and early Holocene
}}
| This area was generated with Dilib version V0.6.27. |  |