Holocene paleohydrology of playa lakes in northern and central Spain: a reconstruction based on the mineral composition of lacustrine sediments
Identifieur interne : 002241 ( Main/Merge ); précédent : 002240; suivant : 002242Holocene paleohydrology of playa lakes in northern and central Spain: a reconstruction based on the mineral composition of lacustrine sediments
Auteurs : Brigitta Schütt [Allemagne]Source :
- Quaternary International [ 1040-6182 ] ; 2000.
Abstract
The focus of this study is the reconstruction of Holocene limnic conditions of playa lakes in central Spain using inorganic components of their sediments. It is demonstrated that the mineralogical sediment characters provide valuable paleoenvironmental information: If dolomites originate from authigenic precipitation or early diagenetic dolomitization, the Mg–Ca-ratio of dolomites, derived from the position of dolomite's major X-ray diffraction line, turns out to be an indicator for the reconstruction of paleosalinity. In contrast, the concentrations of carbonates and sulphatic evaporites and their changing proportion to siliciclastic sediments point to changing depositional environments. The comparison of investigations from different playa lakes and drainage basin systems shows that the interpretation of mineralogical sediment features always has to consider the petrographic, hydrologic, and geomorphic features of the catchment. As for the lacustrine sediments investigated there are no data available yet, a preliminary chronological framework is derived by comparison with results from neighbouring areas. Based on this the hypothesis is put forward that during the so-called Little Ice Age subhumid environmental conditions occurred over the central part of the Iberian Peninsula, while today climatic conditions are dry-subhumid to subarid. Also for times older than the Subatlantic distinct changes of environmental conditions are noticed, but various hiatuses in the sediments make correlation difficult.
Url:
DOI: 10.1016/S1040-6182(00)00062-8
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 001812
- to stream Istex, to step Curation: 001696
- to stream Istex, to step Checkpoint: 000C65
Links to Exploration step
ISTEX:F117775E796B3F44F186AFB8DE2E620B38CB39A8Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>Holocene paleohydrology of playa lakes in northern and central Spain: a reconstruction based on the mineral composition of lacustrine sediments</title><author><name sortKey="Schutt, Brigitta" sort="Schutt, Brigitta" uniqKey="Schutt B" first="Brigitta" last="Schütt">Brigitta Schütt</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:F117775E796B3F44F186AFB8DE2E620B38CB39A8</idno><date when="2000" year="2000">2000</date><idno type="doi">10.1016/S1040-6182(00)00062-8</idno><idno type="url">https://api.istex.fr/document/F117775E796B3F44F186AFB8DE2E620B38CB39A8/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001812</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001812</idno><idno type="wicri:Area/Istex/Curation">001696</idno><idno type="wicri:Area/Istex/Checkpoint">000C65</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000C65</idno><idno type="wicri:doubleKey">1040-6182:2000:Schutt B:holocene:paleohydrology:of</idno><idno type="wicri:Area/Main/Merge">002241</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">Holocene paleohydrology of playa lakes in northern and central Spain: a reconstruction based on the mineral composition of lacustrine sediments</title><author><name sortKey="Schutt, Brigitta" sort="Schutt, Brigitta" uniqKey="Schutt B" first="Brigitta" last="Schütt">Brigitta Schütt</name><affiliation wicri:level="4"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Department of Physical Geography, Faculty of Geosciences, University of Trier, 54286 Trier</wicri:regionArea><orgName type="university">Université de Trèves</orgName><placeName><settlement type="city">Trèves (Allemagne)</settlement><region type="land" nuts="1">Rhénanie-Palatinat</region></placeName></affiliation><affiliation wicri:level="1"><country wicri:rule="url">Allemagne</country></affiliation></author></analytic><monogr></monogr><series><title level="j">Quaternary International</title><title level="j" type="abbrev">JQI</title><idno type="ISSN">1040-6182</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="2000">2000</date><biblScope unit="volume">73–74</biblScope><biblScope unit="supplement">C</biblScope><biblScope unit="page" from="7">7</biblScope><biblScope unit="page" to="27">27</biblScope></imprint><idno type="ISSN">1040-6182</idno></series><idno type="istex">F117775E796B3F44F186AFB8DE2E620B38CB39A8</idno><idno type="DOI">10.1016/S1040-6182(00)00062-8</idno><idno type="PII">S1040-6182(00)00062-8</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1040-6182</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The focus of this study is the reconstruction of Holocene limnic conditions of playa lakes in central Spain using inorganic components of their sediments. It is demonstrated that the mineralogical sediment characters provide valuable paleoenvironmental information: If dolomites originate from authigenic precipitation or early diagenetic dolomitization, the Mg–Ca-ratio of dolomites, derived from the position of dolomite's major X-ray diffraction line, turns out to be an indicator for the reconstruction of paleosalinity. In contrast, the concentrations of carbonates and sulphatic evaporites and their changing proportion to siliciclastic sediments point to changing depositional environments. The comparison of investigations from different playa lakes and drainage basin systems shows that the interpretation of mineralogical sediment features always has to consider the petrographic, hydrologic, and geomorphic features of the catchment. As for the lacustrine sediments investigated there are no data available yet, a preliminary chronological framework is derived by comparison with results from neighbouring areas. Based on this the hypothesis is put forward that during the so-called Little Ice Age subhumid environmental conditions occurred over the central part of the Iberian Peninsula, while today climatic conditions are dry-subhumid to subarid. Also for times older than the Subatlantic distinct changes of environmental conditions are noticed, but various hiatuses in the sediments make correlation difficult.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Rhénanie/explor/UnivTrevesV1/Data/Main/Merge
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 002241 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Merge/biblio.hfd -nk 002241 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Rhénanie
|area= UnivTrevesV1
|flux= Main
|étape= Merge
|type= RBID
|clé= ISTEX:F117775E796B3F44F186AFB8DE2E620B38CB39A8
|texte= Holocene paleohydrology of playa lakes in northern and central Spain: a reconstruction based on the mineral composition of lacustrine sediments
}}
| This area was generated with Dilib version V0.6.31. |  |