2019
Neogenní a kvartérní sedimenty v oblasti Nového Hrádku (Západní část NP Podyjí)
NEHYBA, Slavomír, Karel KIRCHNER a František KUDAZákladní údaje
Originální název
Neogenní a kvartérní sedimenty v oblasti Nového Hrádku (Západní část NP Podyjí)
Název česky
Neogenní a kvartérní sedimenty v oblasti Nového Hrádku (Západní část NP Podyjí
Název anglicky
Neogene and Quaternary deposits in the closest surroundings of the Nový Hrádek (the Podyjí National Park)
Autoři
NEHYBA, Slavomír (203 Česká republika, garant, domácí), Karel KIRCHNER (203 Česká republika) a František KUDA (203 Česká republika)
Vydání
Geologické výzkumy na Moravě a ve Slezsku, Brno, Masarykova univerzita, 2019, 1212-6209
Další údaje
Jazyk
čeština
Typ výsledku
Článek v odborném periodiku
Obor
10505 Geology
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Kód RIV
RIV/00216224:14310/19:00111678
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova česky
spodní miocén-kvartér-provenienční analýza-depoziční prostředí
Klíčová slova anglicky
Lower Miocene-Quaternary-provenance analysis-depositional environment
Štítky
Příznaky
Recenzováno
Změněno: 11. 5. 2020 17:17, Mgr. Marie Šípková, DiS.
V originále
Neogene deposits of the Carpathian Foredeep were newly recognized in the sedimentary succession within the outcrop close to Nový Hradek site in the area of the Podyjí National Park covered by extensive Quaternary deposits. These deposits are preserved as erosional relics within a bowl shaped depression on the top of the crystalline basement. Facies analysis shows that the recognised Neogene beds represent fluvial deposits. Two facies associations were identified within the Quaternary deposits. Although both of them are interpreted as colluvial deposits, they were formed by a series of gravity flows with highly varied water content. The provenance analysis (pebble petrography, association of heavy minerals, zircon study) confirmed, that the source area of both Neogene and Quaternary deposits was located in the adjacent geological units with strong dominance of Moravian Unit. Relatively high mineral maturity of the studied deposits points to extended blanket of intensely weathered crystalline basement, which underwent erosion and redeposition. Higher content of quartz clasts within the Neogene deposits reveals different mode of transport and possible redeposition from older sediments. Studied Neogene deposits are preliminary related to quartzose gravel and sands known from the close surrounding of the nearby Lukov village. Comparison of Neogene and Quaternary deposits in the surroundings of Nový Hrádek and occurrences of similar sediments within the National Park in Austria (e.g. surroundings of Merkersdorf) might provide a further data about the poorly known history of the area during Neogene.
Anglicky
Neogene deposits of the Carpathian Foredeep were newly recognized in the sedimentary succession within the outcrop close to Nový Hradek site in the area of the Podyjí National Park covered by extensive Quaternary deposits. These deposits are preserved as erosional relics within a bowl shaped depression on the top of the crystalline basement. Facies analysis shows that the recognised Neogene beds represent fluvial deposits. Two facies associations were identified within the Quaternary deposits. Although both of them are interpreted as colluvial deposits, they were formed by a series of gravity flows with highly varied water content. The provenance analysis (pebble petrography, association of heavy minerals, zircon study) confirmed, that the source area of both Neogene and Quaternary deposits was located in the adjacent geological units with strong dominance of Moravian Unit. Relatively high mineral maturity of the studied deposits points to extended blanket of intensely weathered crystalline basement, which underwent erosion and redeposition. Higher content of quartz clasts within the Neogene deposits reveals different mode of transport and possible redeposition from older sediments. Studied Neogene deposits are preliminary related to quartzose gravel and sands known from the close surrounding of the nearby Lukov village. Comparison of Neogene and Quaternary deposits in the surroundings of Nový Hrádek and occurrences of similar sediments within the National Park in Austria (e.g. surroundings of Merkersdorf) might provide a further data about the poorly known history of the area during Neogene.