Provenance and paleoenvironmental context of the Late Pleistocene thin aeolian silt mantles in southwestern Poland – A widespread parent material for soils

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F21%3A00000089" target="_blank" >RIV/00025798:_____/21:00000089 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0341816221002368" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0341816221002368</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.catena.2021.105377" target="_blank" >10.1016/j.catena.2021.105377</a>

Result language

angličtina

Original language name

Provenance and paleoenvironmental context of the Late Pleistocene thin aeolian silt mantles in southwestern Poland – A widespread parent material for soils

Original language description

Thin loess deposits are widespread soil parent materials and important archives for paleoenvironmentalreconstruction. The origin of loess in SW Poland is attributed to the Great Odra Valley (GOV), following thegeneral concept that large rivers play a major role in regional silt supply. Yet, the precise provenance (glaciersources and/or local rocks) of silts, possibly deflated from dry GOV braided riverbeds, is not clear. Our study ofthin and thick loess mantles in SW Poland for the first time indicates the provenance of thin loess based onmineralogical (MLA-SEM) and isotopic analyses (143Nd/144Nd, 87Sr/86Sr). Luminescence ages of five localitiespoint to thin loess mantle formation during and shortly (23.0 to 17.7 ka yr) after the Last Glacial Maximum(LGM). Our isotopic data indicate that thin loess deposits in SW Poland are the mixtures of two main components– local Sudetic and Scandinavian, the latter delivered by the Fennoscandian ice sheet (FIS). Also, detailed analysesof heavy minerals show that a single mineral (e.g., hornblende) may come from both Sudetic and Scandinaviansources. This research highlights the role of the (Pleistocene) GOV in collecting and homogenizingmaterials, while supplying the region with fine particles to be deflated by paleowinds from open surfaces.Anomalies in mineralogy and isotopic composition are connected with influence of Sudetic mountain rivers andlocally blowing silt material by katabatic winds. Regional grain size differentiation of thin loess mantles explainstransport distance and altitude.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10505 - Geology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Catena

ISSN

0341-8162

e-ISSN

—

Volume of the periodical

204

Issue of the periodical within the volume

September : 105377

Country of publishing house

DE - GERMANY

Number of pages

13

Pages from-to

nestránkováno

UT code for WoS article

000657369600003

EID of the result in the Scopus database

2-s2.0-85104823500