AMS 14C and OSL/IRSL dating of the Dunaszekcső loess sequence (Hungary): chronology for 20 to 150 ka and implications for establishing reliable age–depth models for the last 40 ka

Újvári, Gábor; Molnár, Mihály; Novothny, Ágnes; Páll‐Gergely, Barna; Kovács, János; Várhegyi, A.

doi:10.1016/j.quascirev.2014.06.009

Cited by 75 publications

(65 citation statements)

References 121 publications

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“…The age-depth model is also a good instrument for loess sedimentation rate calculation. In this case this sedimentation rate is about 1 mm per year which is similar to other places in Europe where this kind of measurements were made for loess deposits (Frechen et al, 2003;Antoine et al, 2009;Stevens et al, 2011;Ujvari et al, 2014).…”

Section: Resultssupporting

confidence: 85%

Luminescence chronostratigraphy for the loess deposits in Złota, Poland

et al. 2018

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Loess formations in Poland display a close relationship with cooling and warming trends of the Northern Hemisphere during the Pleistocene. Loess sequences sensitively record regional palaeoclimatic and palaeoecological changes. The Złota loess profile (21°39'E, 50°39'N) provides a unique opportunity to reconstruct climate conditions in the past in this part of Poland. This continuous sequence of loess and palaeosol deposits allows to distinguish between warmer and more humid climate which is favourable for soil development and much colder and dry periods which are conducive to loess accumulation. The silty and sandy aeolian material originates mainly from weathered rock surfaces affected by frost shattering or from glaciofluvial/fluvial deposits of river flood plains. In Poland, loess and loess-like formations occur in the southern part of the country, mostly in the south polish uplands, i.e. in the Lublin, Sandomierz, and Cracow Uplands. We used different techniques to establish a chronological framework for this site. 21 samples for luminescence dating were collected from the investigated loess profile in Złota. Infrared post-IR IRSL dating method was applied to the polymineral fine grains (4-11µm). The dating results are accompanied by detailed analyses of the geochemical composition, organic carbon and carbonate. Also, analysis of magnetic susceptibility and grain-size distribution were investigated. Based on such a large stratigraphic dataset an age-depth model using OxCal has also been constructed for this site.

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Section: Resultssupporting

confidence: 85%

Luminescence chronostratigraphy for the loess deposits in Złota, Poland

et al. 2018

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“…; Újvári et al . ). Here, the palaeosol complex seems to have developed between about 55 and 35 ka during the Middle Pleniglacial chronoclimatic phase.…”

Section: Discussionmentioning

confidence: 97%

“…One is radiocarbon dating, which has been successfully applied for example to mollusc shells at Dunaszeckcső (Hungary) (Újvári et al . ) and to earthworm calcite granules at Nussloch (Germany) (Moine et al . ).…”

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confidence: 99%

A luminescence‐based chronology for the Harletz loess sequence, Bulgaria

Lomax

Fuchs

Antoine

et al. 2018

Boreas

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The Harletz loess‐palaeosol sequence is located in northwestern Bulgaria and represents an important link between well‐studied loess sequences in eastern Romania and further sites to the west of the Carpathians (e.g. Serbia and Hungary). The aim of this study was to establish a chronostratigraphy of the deposits, using various methods of luminescence dating, together with basic stratigraphical field observations as well as magnetic properties. Luminescence dating was carried out using the quartz fine grain fraction and a SAR protocol, and the feldspar coarse grain fraction, applying the MET‐pIRIR protocol. Due to underestimation of the quartz fine grain fraction in the lower parts of the sequence, the resulting chronology is mainly based on the feldspar ages, which are derived from the stimulation temperature at 150 °C. A comparison with nearby sequences from Serbia, Hungary and Romania, and interpretations obtained through the stratigraphical and sedimentological signature of the sequence, supports the established chronology. Our data suggest that the prominent palaeosol (soil complex) in the upper quarter of the sequence was formed during MIS 5. It would follow that large parts of the Last Glacial loess overlying this palaeosol were probably eroded, and that the thick loess accumulation underlying this soil complex can be allocated to the penultimate glacial (MIS 6). A prominent MIS 6 tephra, which has been reported from other sequences in the area, is also present at Harletz.

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“…Mindemellett a külső réteg maratásának hiányában a számított béta és gamma dózisteljesítményt 0,050±0,025 Gy/ka alfa dózis telje sítménnyel növeltük. A finomszemcsés 2. minta kap csán a környezeti alfa sugárzás hatékonyságát a kvarcfrakció esetében a=0,06±0,02, a földpát frakció esetében 0,08±0,02 értékűnek vettük (MURRAY et al 2014, SCHMIDT et al 2010, ÚJVÁRI et al 2014. A kozmikus sugárzás értékét PRESCOTT & HUTTON (1994) alapján becsültük.…”

Section: Módszerekunclassified

Pleisztocén folyóvízi kavics a Villányi-hegységben

Szujó¹,

Sebe²,

Sípos

et al. 2017

Földt. Közl.

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In the Villány Hills, the southernmost exposed basement block of Hungary, Cenozoic rocks have been known to be represented mostly by Late Pliocene -Quaternary terrestrial sediments, red clays and loess. Cleaning of a classic exposure, the cable-car cut on Templom Hill in the village of Villány, at the eastern termination of the Villány Hills, revealed a hitherto unknown Quaternary deposit overlying the Mesozoic basement rocks, which may add important information to the Cenozoic evolution history of the area. This paper aims at describing this deposit, identifying its sedimentary environment and concluding on the palaeogeographic conditions.The strongly tilted Mesozoic succession is overlain by coarse gravel with a sand interbed, then after an erosional unconformity by slope loess with gravel seams. Clast lithologies indicate that the gravel has a local origin. Its source rocks are Middle Triassic Templomhegy Dolomite, Upper Triassic Mészhegy Sandstone, Lower Jurassic Somssichhegy Limestone and Pliocene-Quaternary cavity-filling red clay and calcite, all occurring within Templom Hill and along the northern side of the Villány Hills. The heavy mineral assemblage of the sand interbed in the gravel is similar to that of the directly underlying Mészhegy and Somssichhegy Formations. The wide range of the rounding of clasts (poor to good) also points to short transport. The age of the gravel is not older than Pleistocene based on the Early Pleistocene age of the cavity-filling red clays in the area; the sand interbed is older than 400 ka according to OSL dating results. Based on the above points, the gravel can be interpreted as a fluvial terrace, a deposit of a watercourse flowing in the area during the Early and/or Middle Pleistocene. This watercourse was probably the ancestor of the modern Villány-Pogány Stream, flowing along and eroding the northern margin of the Villány Hills. Due to the slow uplift of the basement, the stream incised, the gravel got exposed and eroded. A gentle-sloped small valley incised into it and became filled up during the Riss glaciation (MIS 6) with loess and sandy-gravelly sheet wash deposits. The uplift rate of the area in the younger Quaternary did not exceed ~0,05 mm/year. Keywords: Pleistocene, fluvial terrace, uplift rate, OSL, post-IR IRSL, heavy mineral Összefoglalás A Villányi-hegységben eddigi ismereteink szerint a kainozoos képződményeket elsősorban késő-pliocén-kvarter szárazföldi üledékek, vörösagyagok és lösz képviselik. A villányi Templom-hegy siklóbevágásának közelmúltbeli letisztítása eddig ismeretlen kvarter képződményt tett hozzáférhetővé, amely fontos adalékot jelenthet a Villányi-hegység kainozoos fejlődéstörténetéhez. A cikk célja a mezozoos rétegekre települt fedőképződmények leírása, képződési körül -ményeinek, valamint korának meghatározása és ősföldrajzi viszonyainak felvázolása.A kibillent alaphegységi rétegsorra homokbetelepüléses durva kavics, majd eróziós határral kavicszsinóros aleurit települ. A durva kavics a kőzetanyagok vizsgálata alapján a közvet...

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AMS 14C and OSL/IRSL dating of the Dunaszekcső loess sequence (Hungary): chronology for 20 to 150 ka and implications for establishing reliable age–depth models for the last 40 ka

Cited by 75 publications

References 121 publications

Luminescence chronostratigraphy for the loess deposits in Złota, Poland

Luminescence chronostratigraphy for the loess deposits in Złota, Poland

A luminescence‐based chronology for the Harletz loess sequence, Bulgaria

Pleisztocén folyóvízi kavics a Villányi-hegységben

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