Palaeopedologic research of a new Upper Pleistocene loess-palaeosol record in Brno-Bohunice

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F21%3A00551859" target="_blank" >RIV/61389005:_____/21:00551859 - isvavai.cz</a>

Alternative codes found

RIV/62156489:43410/21:43920278 RIV/00216224:14310/21:00121685 RIV/00216208:11310/21:10457708

Result on the web

<a href="http://www.geology.cz/img/zpravyvyzkum/fulltext/Adamekova_web.pdf" target="_blank" >http://www.geology.cz/img/zpravyvyzkum/fulltext/Adamekova_web.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3140/zpravy.geol.2021.5" target="_blank" >10.3140/zpravy.geol.2021.5</a>

Result language

čeština

Original language name

Paleopedologický výzkum nového sprašového záznamu svrchního pleistocénu v Brně-Bohunicích

Original language description

A number of important loess sites have been discovered in the area of the Brno-Bohunice district. Most of them are related to archaeological research, and apart from Karel Valoch work, their palaeopedological record has not been studied in detail. A new loess section exposed by the recent construction works in Brno-Bohunice provides an opportunity for a comprehensive multiproxy evaluation of the Upper Pleistocene loess-palaeosol record. This work provides a complex information on palaeoenvironment and soil development using a combined approach, including micromorphological observations and physical, anthracological, malacological, and geochemical data along with radiocarbon dating. The excavated section Brno-Bohunice 2018 (49,1773775N, 16,5749161E), approximately 400 cm in thickness, was divided into ten lithostratigraphic units: Loess (units 6 and 1), soil horizons (units 5, 4, 2c, 2b and 2a) and a colluvium (units 3c, 3b and 3a). The basal loess was probably deposited before the Last Glacial Period (MIS 6 or older). The overlying Bt horizon of luvisol was probably developed in the Eem Interglacial and the chernozem in the Early Glacial period (both in MIS 5). The loess-palaeosol sequence is followed by colluvial deposits of unknown age, plausibly resulting from both traction and, frost-related processes. Bw horizon of cambisol affected by secondary gleying process developed from the upper part of the colluvium. Radiocarbon dating (45,004-43,344 and 43,350-42,346 cal BP) indicates that this palaeosol belongs to some of MIS 3 interstadials, as does the overlaying reductaquic horizon of tundra gley. Both palaeosols were affected by freezing processes. The MIS 3 soil complex terminates by the uppermost regosol, which is covered by loess deposited in MIS 2 (27,302-26,463 cal BP). Our research has shown that the palaeosol development in the Brno-Bohunice area is more complex than expected.

Czech name

Paleopedologický výzkum nového sprašového záznamu svrchního pleistocénu v Brně-Bohunicích

Czech description

A number of important loess sites have been discovered in the area of the Brno-Bohunice district. Most of them are related to archaeological research, and apart from Karel Valoch work, their palaeopedological record has not been studied in detail. A new loess section exposed by the recent construction works in Brno-Bohunice provides an opportunity for a comprehensive multiproxy evaluation of the Upper Pleistocene loess-palaeosol record. This work provides a complex information on palaeoenvironment and soil development using a combined approach, including micromorphological observations and physical, anthracological, malacological, and geochemical data along with radiocarbon dating. The excavated section Brno-Bohunice 2018 (49,1773775N, 16,5749161E), approximately 400 cm in thickness, was divided into ten lithostratigraphic units: Loess (units 6 and 1), soil horizons (units 5, 4, 2c, 2b and 2a) and a colluvium (units 3c, 3b and 3a). The basal loess was probably deposited before the Last Glacial Period (MIS 6 or older). The overlying Bt horizon of luvisol was probably developed in the Eem Interglacial and the chernozem in the Early Glacial period (both in MIS 5). The loess-palaeosol sequence is followed by colluvial deposits of unknown age, plausibly resulting from both traction and, frost-related processes. Bw horizon of cambisol affected by secondary gleying process developed from the upper part of the colluvium. Radiocarbon dating (45,004-43,344 and 43,350-42,346 cal BP) indicates that this palaeosol belongs to some of MIS 3 interstadials, as does the overlaying reductaquic horizon of tundra gley. Both palaeosols were affected by freezing processes. The MIS 3 soil complex terminates by the uppermost regosol, which is covered by loess deposited in MIS 2 (27,302-26,463 cal BP). Our research has shown that the palaeosol development in the Brno-Bohunice area is more complex than expected.

Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

—

OECD FORD branch

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project

<a href="/en/project/EF16_019%2F0000728" target="_blank" >EF16_019/0000728: Ultra-trace isotope research in social and environmental studies using accelerator mass spectrometry</a><br>

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

Zprávy o geologických výzkumech

ISSN

0514-8057

e-ISSN

—

Volume of the periodical

54

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

10

Pages from-to

41-50

UT code for WoS article

—

EID of the result in the Scopus database

2-s2.0-85116788712