scholarly journals Paudorf locus typicus (Lower Austria) revisited: The potential of the classic loess outcrop for Middle to Late Pleistocene landscape reconstructions

2013 ◽  
Vol 62 (1) ◽  
pp. 59-72 ◽  
Author(s):  
Tobias Sprafke ◽  
Birgit Terhorst ◽  
Robert Peticzka ◽  
Christine Thiel
Keyword(s):  
Late Pleistocene ◽  
Mis 5E ◽  
Locus Typicus

Abstract. Die über 12 m mächtige Löss-Paläoboden-Sequenz in Paudorf (Niederösterreich), ist seit Jahrzehnten bekannt als locus typicus für die „Paudorfer Bodenbildung“. Dieser 1 m mächtige Pedokomplex im obersten Profilabschnitt entwickelte sich eem- bis frühwürmzeitlich. Das differenzierte Lösssediment im Liegenden, mit einem über 2 m mächtigen Pedokomplex im basalen Bereich, stellt ein außergewöhnliches Archiv mittelpleistozäner Landschaftsentwicklung dar. Die paläopedologischen und sedimentologischen Untersuchungen sowie erste mikromorphologische Analysen widmen sich erstmals der Gesamtabfolge und den Prozessen, die zu ihrer Entstehung beitrugen. Farb- und Karbonatanalysen in hoher Auflösung sowie detaillierte Korngrößenanalysen dienen dabei als hilfreiche Datenbasis. Die Untersuchungen zeigen zum einen, dass die Lösssedimente einer komplexen Genese unter periglazialen Bedingungen unterlagen. Neben äolischer Akkumulation spielten (zumeist solifluidale) Umlagerungsprozesse unter Einmischung von lokalem Material ebenso wie in situ Prozesse eine Rolle. Morphodynamisch stabile Phasen sind insbesondere in den beiden Pedokomplexen nachweisbar. In Bereichen, in denen Datierungen vorliegen, können Entwicklungsphasen mit jenen anderer Sequenzen korreliert werden und als klimatische Signale interpretiert werden. Die „Paudorfer Bodenbildung“ ist vermutlich eine frühglaziale Humuszone (MIS 5c[–a?]), die sich in einer solifluidal umgelagerten (MIS 5d) eemzeitliche Braunerde (MIS 5e) gebildet hat. Im Lösssediment konnten Nassböden nachgewiesen werden, wie sie typisch für spätrisszeitliche (MIS 6) Sequenzen sind. Der untere Pedokomplex wurde offenbar über mehrere Warmphasen verschiedener Intensitäten hinweg gebildet und wiederholt von Umlagerungsprozessen und äolischer Sedimentation während Kaltphasen unterbrochen.

Stratigraphy and chronology of Late Pleistocene loess-paleosol sequence of the East European Plain and correlation with Late Pleistocene archives of Europe

2021 ◽  
Author(s):  
Svetlana Sycheva ◽  
Manfred Frechen ◽  
Birgit Terhorst ◽  
Sergey Sedov ◽  
Olga Khokhlova
Keyword(s):  
Late Pleistocene ◽  
Forest Fire ◽  
Western Europe ◽  
East European Plain ◽  
East European ◽  
Mis 3 ◽  
Soil Sediment ◽  
Rfbr Grant ◽  
Mis 5E ◽  
Eemian Interglacial

<p>A detailed pedocryostratigraphic scheme of the Late Pleistocene periglacial region of the East European Plain has been developed on the basis of study of the paleorelief, sediments, paleosols, and cryogenic horizons. OSL and <sup>14</sup>C-dating of paleosols and sediments in Aleksandrov quarry and in other sections made it possible to substantiate this scheme and correlate it with analogous ones for different regions of Europe. The loess-paleosol sequence in Aleksandrov quarry (51º05'N, 36º08'E) does not have an analogous with respect to the completeness in the whole East European Plain. In the filling of paleobalka the Ryshkovo paleosol of the Mikulino interglacial (MIS 5e) is observed. Over this paleosol, the Valdai soil-sediment series (MIS 5d – MIS 2) is located. It includes four interstadial soils, two of them of the Early Valdai (Kukuevo and Streletsk ones), and two, sometimes three, of the Middle Valdai (Aleksandrov, Hydrouzel и Bryansk ones). The OSL date, 127 ± 8 ka BP, (beginning of MIS 5e) was obtained for a sample taken from the bottom of the Ryshkovo soil. The interglacial soil is overlain by the Seym layer formed mainly from destroyed and redeposited horizons of this soil. For the upper part of the Seym layer, OSL dates of 115 ± 7 ka BP and 112 ± 20 ka BP were obtained (MIS 5d). But the process of burial of Ryshkovo soil in the bottom of the paleobalka began at the end of the interglacial after a catastrophic forest fire. Large post-permafrost deformations - pseudomorphosis is confined to Selikhovodvor loess - MIS 4 (65 ± 8 ka BP). Two soils occurring between Seym and Selikhovodvor loesses: Kukuevo and Streletsk - Early Valdai (MIS 5c and MIS 5a). For Mlodat loess which separates those two soils (MIS 5b), OSL dates of 91 ± 1 and 89 ± 7 ka BP were obtained. For paleosols of Middle Valdai (MIS 3), <sup>14</sup>C-dates were obtained: Aleksandrov (53.742 - 2.124 ka cal BP) and Bryansk soils (37.618 ± 0.668 ka cal BP). For Tuskar loess, which separates Alexandrov and Bryansk soils, OSL dates of 50 ± 3 and 51 ± 3 ka BP were obtained. The new stratigraphic scheme of Late Pleistocene agrees with the ideas of researchers from Eastern, Central, and Western Europe , which allows the following correlations. The identified paleosols correspond to the following intervals: Ryshkovo – Eemian interglacial (127-117 ka BP); Kukuevo to Amersfoort + Brørup – Saint-Germain 1 (105-95 ka BP); Streletsk – Odderade to Saint-Germain 2 (about 85-75 ka BP); Aleksandrov to Oerel (56-53 ka BP); Hydrouzel to Moershoofd – Poperinge (44-45 ka BP) and Hengelo (40-38 ka BP); and Bryansk (33-27 ka BP) to Stillfried B, Denekamp or Grand Bois interstadials. The reconstructed Late Pleistocene loess-paleosol sequence has the most similar structure with loess-paleosol sequences of Ukraine, with sequence Dolní Věstonice in Moravia (Czech Republik), Stillfried in Austria and Mainz-Weisenau in the Rhenish area (Germany), and other archives. <strong>This work was supported by RFBR, grant N19-29-05024 mk. </strong></p>

Dactyloidites ottoi (Geinitz, 1849) in Bahamian Pleistocene Carbonates: A Shallowest-marine Indicator

2021 ◽  
pp. SP522-2021-69
Author(s):  
H. Allen Curran ◽  
Bosiljka Glumac
Keyword(s):  
Late Pleistocene ◽  
Carbonate Sediments ◽  
The Bahamas ◽  
Shallow Marine ◽  
Fine Detail ◽  
Plant Remains ◽  
Mis 5E ◽  
Deposit Feeding ◽  
First Time ◽  
Host Sediment

AbstractThe rosetted trace fossil Dactyloidites ottoi (Geinitz, 1849) is reported and described for the first time from late Pleistocene (MIS 5e) carbonates of the Bahama Archipelago in shallowing-upward, shelly calcarenites from Great Inagua and Great and Little Exuma islands. The distinctive, fan-shaped D. ottoi specimens from the Bahamas, while not preserved in fine detail and not revealing a shaft, compare favourably in shape and size with specimens from other localities around the world, including the oldest well-documented specimens from the Jurassic of Argentina. D. ottoi is interpreted as a fodinichnion formed by the activity of a deposit-feeding worm, probably a polychaete, consuming marine-plant remains within host sediment. The late Pleistocene palaeodepositional environment of these carbonate sediments is interpreted as within the lower foreshore-upper shoreface zone in full marine, tropical waters. This discovery of D. ottoi marks an addition to the Bahamian shallow-marine ichnocoenose within the Skolithos ichnofacies.

Megafaunal Butchering at Lubbock Lake, Texas: A Taphonomic Reanalysis

1988 ◽  
Vol 30 (2) ◽  
pp. 221-231 ◽  
Author(s):  
Lee Ann Kreutzer
Keyword(s):  
Human Behavior ◽  
Late Pleistocene ◽  
Meat Processing ◽  
Faunal Remains ◽  
Point Bar ◽  
Feature Structure ◽  
Bone Accumulation ◽  
Rule Out

Five seasons of excavation in Feature Area 2-1 of the Lubbock Lake Landmark, Texas, exposed a megafaunal bone accumulation in sands and gravels deposited by a late Pleistocene meandering stream. Many bone specimens exhibit evidence of alteration, supporting interpretation of the feature as an in situ, secondary meat-processing area; the gravels are interpreted as the point bar of a meandering stream. Faunal remains lying stratigraphically above the point bar have been considered to form a separate, noncultural feature produced by stream flooding. However, rose diagrams and analysis of adjusted residuals demonstrate that a statistically significant amount of bone in each feature is aligned along axes of preferred orientation. Further, the orientation patterns and statistical analyses of both features exhibit the same trends, suggesting that the same processes affected both. Although the evidence does not rule out a role of human behavior, it does demonstrate that stream currents significantly influenced feature structure.

Late Pliocene to late Pleistocene environments preserved at the Palisades Site, central Yukon River, Alaska

2003 ◽  
Vol 60 (1) ◽  
pp. 33-43 ◽  
Author(s):  
Paul Matheus ◽  
James Begét ◽  
Owen Mason ◽  
Carol Gelvin-Reymiller
Keyword(s):  
Late Pleistocene ◽  
Volcanic Ash ◽  
Silt Loam ◽  
Common Elements ◽  
Yukon River ◽  
Taiga Forest ◽  
Continuous Record ◽  
Ice Wedge ◽  
Nearly Continuous

AbstractThe Palisades Site is an extensive silt-loam bluff complex on the central Yukon River preserving a nearly continuous record of the last 2 myr. Volcanic ash deposits present include the Old Crow (OCt; 140,000 yr), Sheep Creek (SCt; 190,000 yr), PA (2.02 myr), EC (ca. 2 myr), and Mining Camp (ca. 2 myr) tephras. Two new tephras, PAL and PAU, are geochemically similar to the PA and EC tephras and appear to be comagmatic. The PA tephra occurs in ice-wedge casts and solifluction deposits, marking the oldest occurrence of permafrost in central Alaska. Three buried forest horizons are present in association with dated tephras. The uppermost forest bed occurs immediately above the OCt; the middle forest horizon occurs below the SCt. The lowest forest bed occurs between the EC and the PA tephras, and correlates with the Dawson Cut Forest Bed. Plant taxa in all three peats are common elements of moist taiga forest found in lowlands of central Alaska today. Large mammal fossils are all from common late Pleistocene taxa. Those recovered in situ came from a single horizon radiocarbon dated to ca. 27,000 14C yr B.P. The incongruous small mammal assemblage in that horizon reflects a diverse landscape with both wet and mesic environments.

scholarly journals Dental Characteristics of Late Pleistocene Equus Lambei from the Bluefish Caves, Yukon Territory, and their Comparison with Eurasian Horses

2007 ◽  
Vol 50 (1) ◽  
pp. 81-93 ◽  
Author(s):  
Ariane Burke ◽  
Jacques Cinq-Mars
Keyword(s):  
Late Pleistocene ◽  
Yukon Territory ◽  
Size Reduction ◽  
Human Occupation ◽  
Large Sample

ABSTRACT Bluefish Caves I, II and III of northern Yukon, have yielded the earliest in situ evidence of human occupation of Eastern Beringia, associated with one of the largest and most diverse Late Pleistocene faunas recovered in the region. This paper presents data derived from the study of a large sample of horse teeth recovered from the three caves. This research contributes to our knowledge of the Late Pleistocene Beringian equid, Equus lambei. A comparison of the dentition of E. lambei with that of some contemporary European horses, indicates they have similar size cheekteeth. The hypothesis of a Late Pleistocene trend of size reduction in equids is considered in the light of this comparison.

CHRONOLOGY OF THE MIS 3 MEGAFAUNA IN SOUTHEASTERN WEST SIBERIA AND THE POSSIBILITY OF LATE SURVIVAL OF THE KHOZARIAN STEPPE MAMMOTH (MAMMUTHUS TROGONTHERII CHOSARICUS)

Radiocarbon ◽  
2021 ◽  
pp. 1-10
Author(s):  
Andrei V Shpansky ◽  
Yaroslav V Kuzmin
Keyword(s):  
Late Pleistocene ◽  
West Siberia ◽  
Mis 3 ◽  
Woolly Rhinoceros ◽  
Mis 5E ◽  
Late Survival ◽  
Woolly Mammoth

ABSTRACT We report a new series of radiocarbon (14C) dates on the MIS 3 megafauna for a previously poorly studied region of southeastern West Siberia. Some species, like woolly mammoth and woolly rhinoceros, and Pleistocene bison and horse, existed throughout the MIS 3 (ca. 29–59 ka cal BP); cave hyaena is dated to ca. 46,400 cal BP. The very late 14C dates on Khozarian steppe elephant (Mammuthus trogontherii chosaricus), ca. 45,100–45,400 cal BP, may indicate the survival of this species in Siberia up to MIS 3. More work is needed to confirm or reject this suggestion. Previously, Khozarian steppe elephant was known in Siberia only at the beginning of the Late Pleistocene (MIS 5e).

Middle to late Pleistocene uplift rate of the Hungarian Mountain Range at the Danube Bend, (Pannonian Basin) using in situ produced 3He

2005 ◽  
Vol 410 (1-4) ◽  
pp. 173-187 ◽  
Author(s):  
Zs. Ruszkiczay-Rüdiger ◽  
T.J. Dunai ◽  
G. Bada ◽  
L. Fodor ◽  
E. Horváth
Keyword(s):  
Late Pleistocene ◽  
Pannonian Basin ◽  
Mountain Range ◽  
Uplift Rate
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