Spodnomiocénní fluviální sedimenty v okolí Nových Bránic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F25%3A00142730" target="_blank" >RIV/00216224:14310/25:00142730 - isvavai.cz</a>

Výsledek na webu

<a href="https://journals.muni.cz/gvms/article/view/41098" target="_blank" >https://journals.muni.cz/gvms/article/view/41098</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5817/GVMS2025-41098" target="_blank" >10.5817/GVMS2025-41098</a>

Jazyk výsledku

čeština

Název v původním jazyce

Spodnomiocénní fluviální sedimenty v okolí Nových Bránic

Popis výsledku v původním jazyce

Sedimentological study of the deposits at the locality near Nové Bránice provides data about Eggenburgian–Ottnangian deposits of the Carpathian Foredeep basin in the area. Altogether 9 lithofacies have been identified and deposits of the two facies associations/ depositional environment have been recognised in the outcrop. The first one is represented by deposits of the fluvial channel formed by traction currents of poorly confined waterflows. In-channel bedforms (2D and 3D gravelly and sandy dunes) represent their prominent part. Braided fluvial style is supposed with important role of variation in fluvial discharge. Paleocurrent data signalises transport towards SE, S or SSW. The deposits of the second facies associations (covering the deposits of the first facies association) are interpreted as proximal overbank deposits related to flood events with important role of aggradation. Provenance analysis of the fluvial deposits is based on the evaluation of petrography of pebbles, transparent heavy mineral assemblages, composition of garnet and rutile, and zircon studies). The assessment of the gamma-ray spectra provides supplementary data. An important role of relatively local sources has been recognised represented dominantly by local granitoids and metamorphics of the Brno Massif (primary source). The role of the next crystalline complexes (Moldanubicum, Moravian Zone) in provenance was minor. Moreover, a role of intense reworking and redeposition of material from older deposits (as recycled secondary source) is supposed. Studied fluvial system continued towards the centre of the peripheral foreland basin.

Název v anglickém jazyce

Lower Miocene fluvial deposits in the surroundings of Nové Bránice

Popis výsledku anglicky

Sedimentological study of the deposits at the locality near Nové Bránice provides data about Eggenburgian–Ottnangian deposits of the Carpathian Foredeep basin in the area. Altogether 9 lithofacies have been identified and deposits of the two facies associations/depositional environment have been recognised in the outcrop. The first one is represented by deposits of the fluvial channel formed by traction currents of poorly confined waterflows. In-channel bedforms (2D and 3D gravelly and sandy dunes) represent their prominent part. Braided fluvial style is supposed with important role of variation in fluvial discharge. Paleocurrent data signalises transport towards SE, S or SSW. The deposits of the second facies associations (covering the deposits of the first facies association) are interpreted as proximal overbank deposits related to flood events with important role of aggradation. Provenance analysis of the fluvial deposits is based on the evaluation of petrography of pebbles, transparent heavy mineral assemblages, composition of garnet and rutile, and zircon studies). The assessment of the gamma-ray spectra provides supplementary data. An important role of relatively local sources has been recognised represented dominantly by local granitoids and metamorphics of the Brno Massif (primary source). The role of the next crystalline complexes (Moldanubicum, Moravian Zone) in provenance was minor. Moreover, a role of intense reworking and redeposition of material from older deposits (as recycled secondary source) is supposed. Studied fluvial system continued towards the centre of the peripheral foreland basin.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

GEOLOGICKÉ VÝZKUMY NA MORAVĚ A VE SLEZSKU

ISSN

1212-6209

e-ISSN

2336-4378

Svazek periodika

32

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

52-61

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-105025223417