Synchronizing a Late Glacial Abrupt Cooling Event with Paleoenvironmental and Population Changes: Case Study of the Moervaart Paleolake Area (NW Belgium)

Radiocarbon ◽  
2014 ◽  
Vol 56 (2) ◽  
pp. 899-912 ◽  
Author(s):  
Philippe Crombé ◽  
Erick Robinson ◽  
Mark van Strydonck
Keyword(s):  
Bayesian Modeling ◽  
Younger Dryas ◽  
Open Water ◽  
Late Glacial ◽  
Water Systems ◽  
Lake Area ◽  
Population Changes ◽  
Hunter Gatherers ◽  
Radiocarbon Dates

Sum probability and Bayesian modeling of a substantial series of radiocarbon dates from a former extensive lake area in NW Belgium, known as the Moervaart area, allow important hydrological changes to be synchronized with Greenland Interstadial lb (or Intra-Allerød Cold Period). It is postulated that the disappearance of nearly all open water systems (Moervaart lake, anastomosing gullies, and dune-slacks) in response to this short but abrupt cooling event was responsible for a nearly total retreat of hunter-gatherers already some centuries before the start of Greenland Stadial 1 (Younger Dryas).

Synchronizing a Late Glacial Abrupt Cooling Event with Paleoenvironmental and Population Changes: Case Study of the Moervaart Paleolake Area (NW Belgium)

Radiocarbon ◽  
2014 ◽  
Vol 56 (02) ◽  
pp. 899-912 ◽  
Author(s):  
Philippe Crombé ◽  
Erick Robinson ◽  
Mark van Strydonck
Keyword(s):  
Bayesian Modeling ◽  
Younger Dryas ◽  
Open Water ◽  
Late Glacial ◽  
Water Systems ◽  
Lake Area ◽  
Population Changes ◽  
Hunter Gatherers ◽  
Radiocarbon Dates

Sum probability and Bayesian modeling of a substantial series of radiocarbon dates from a former extensive lake area in NW Belgium, known as the Moervaart area, allow important hydrological changes to be synchronized with Greenland Interstadial lb (or Intra-Allerød Cold Period). It is postulated that the disappearance of nearly all open water systems (Moervaart lake, anastomosing gullies, and dune-slacks) in response to this short but abrupt cooling event was responsible for a nearly total retreat of hunter-gatherers already some centuries before the start of Greenland Stadial 1 (Younger Dryas).

scholarly journals Tree-Ring Records of Near-Younger Dryas Time in Central North America—Preliminary Results from the Lincoln Quarry Site, Central Illinois, Usa

Radiocarbon ◽  
2004 ◽  
Vol 46 (2) ◽  
pp. 933-941 ◽  
Author(s):  
Irina P Panyushkina ◽  
Steven W Leavitt ◽  
Alex Wiedenhoeft ◽  
Sarah Noggle ◽  
Brandon Curry ◽  
...  
Keyword(s):  
North America ◽  
Tree Ring ◽  
Environmental Changes ◽  
Ring Width ◽  
Younger Dryas ◽  
Late Glacial ◽  
Radiocarbon Dates ◽  
Initial Sampling ◽  
Central Illinois ◽  
A Site

The abrupt millennial-scale changes associated with the Younger Dryas (YD) event (“chronozone”) near the dawn of the Holocene are at least hemispheric, if not global, in extent. Evidence for the YD cold excursion is abundant in Europe but fairly meager in central North America. We are engaged in an investigation of high-resolution environmental changes in mid-North America over several millennia (about 10,000 to 14,000 BP) during the Late Glacial–Early Holocene transition, including the YD interval. Several sites containing logs or stumps have been identified and we are in the process of initial sampling or re-sampling them for this project. Here, we report on a site in central Illinois containing a deposit of logs initially thought to be of YD age preserved in alluvial sands. The assemblage of wood represents hardwood (angiosperm) trees, and the ring-width characteristics are favorable to developing formal tree-ring chronologies. However, 4 new radiocarbon dates indicate deposition of wood may have taken place over at least 8000 14C yr (6000–14,000 BP). This complicates the effort to develop a single floating chronology of several hundred years at this site, but it may provide wood from a restricted region over a long period of time from which to develop a sequence of floating chronologies, the timing of deposition and preservation of which could be related to paleoclimatic events and conditions.

THE WORLD’S OLDEST POTS: ON THE DISPERSAL OF THE CERAMIC INNOVATION AMONG EURASIAN HUNTER-GATHERERS SINCE THE LATE GLACIAL PERIOD

2020 ◽  
Vol 2 (2) ◽  
pp. 66-78
Author(s):  
Henny Piezonka ◽  
Keyword(s):  
Southern China ◽  
New Technology ◽  
Animal Husbandry ◽  
Late Glacial ◽  
Northern Eurasia ◽  
Hunter Gatherers ◽  
Radiocarbon Dates ◽  
The Pacific ◽  
Ceramic Vessels ◽  
The Baltic

The earliest ceramic vessels of the world have been produced in southern China by Late Glacial hunter-gatherers in the remote times around 18,000 calBC. Over the following millennia the new technology became known among forager communities in the Russian Amur region, in Japan, Korea, Transbaikalia and ultimately appeared also in the Urals and in eastern and northern central Europe. Contrary to common views of pottery as part of the “Neolithic package”, the Eurasian hunter-gatherer ceramic tradition is an innovation that developed completely independent of other Neolithic traits such as agriculture, animal husbandry and sedentary lifestyle. The paper explores the chronological sequence of the appearance of hunter-gatherer ceramic vessel production on the basis of radiocarbon dates in northern Eurasia from the Pacific coast to the Baltic and outlines promising methodological approaches that currently play a role in researching this much-discussed topic.

A Younger Dryas Icecap in the Equatorial Andes

1997 ◽  
Vol 47 (1) ◽  
pp. 13-28 ◽  
Author(s):  
Chalmers M. Clapperton ◽  
Minard Hall ◽  
Patricia Mothes ◽  
Malcolm J. Hole ◽  
John W. Still ◽  
...  
Keyword(s):  
Younger Dryas ◽  
Late Glacial ◽  
Tropical Andes ◽  
Outlet Glacier ◽  
Radiocarbon Dates ◽  
Glacial Ice ◽  
Ice Cap ◽  
North Atlantic Climate ◽  
Organic Deposits ◽  
Younger Dryas Event

AbstractMorphologic and stratigraphic evidence shows that a late-glacial ice cap existed on part of the Eastern Cordillera of Ecuador (Lat. 0° 20′ S) on ground with a mean elevation of 4200 m where none exists now. An outlet glacier from an ca. 800 km2ice cap terminated at 3850 m altitude in the Papallacta valley on the eastern side of the plateau. Radiocarbon dates show that moraines formed by this advance were ice-free by 13,20014C yr B.P. Tephras and the age of organic deposits at the plateau edge indicate ice-free conditions before 11,80014C yr B.P. This interval was followed by the expansion of an ca. 140 km2ice cap that discharged glaciers into adjacent valleys where terminal moraines were built at 3950 m altitude. AMS and conventional radiocarbon dates from macrofossils, peat, and gyttja above and below till of the readvance indicate that the ice cap formed between ca. 11,000 and 10,00014C yr B.P. and was thus coeval with the European Younger Dryas event. The ice cap developed in response to a surface temperature cooling of at least 3°C in the tropical Andes, a finding that is consistent with a coupled equatorial/high latitude North Atlantic climate system operating at the late-glacial/Holocene transition. These results are further evidence that Younger Dryas cooling may have been a global event.

scholarly journals Radiocarbon Calibration by Means of Varves Versus 14C Ages of Terrestrial Macrofossils from Lake Gościąż and Lake Perespilno, Poland

Radiocarbon ◽  
2000 ◽  
Vol 42 (3) ◽  
pp. 335-348 ◽  
Author(s):  
Tomasz Goslar ◽  
Maurice Arnold ◽  
Nadine Tisnerat-Laborde ◽  
Christine Hatté ◽  
Martine Paterne ◽  
...  
Keyword(s):  
Calibration Curve ◽  
Younger Dryas ◽  
Late Glacial ◽  
Cariaco Basin ◽  
Rapid Decline ◽  
Radiocarbon Dates ◽  
Radiocarbon Calibration

This paper presents radiocarbon dates of terrestrial macrofossils from Lakes Gościąż and Perespilno, Poland. These data agree very well with most of the German pine calibration curve. In the Late Glacial, they generally agree with the data from Lake Suigetsu, Japan, and indicate constant or even increasing 14C age between 12.9 and 12.7 ka BP, rapid decline of 14C age around 12.6 ka BP, and a long plateau 10,400 14C BP around 12 ka BP. Correlation with corals and data from the Cariaco basin seems to support the concept of site-speficic, constant values of reservoir correction, in contradiction to those introduced in the INTCAL98 calibration. Around the Allerød/Younger Dryas boundary our data strongly disagree with those from the Cariaco basin, which reflects large discrepancy between calendar chronologies at that period. The older sequence from Lake Perespilno indicates two periods of rapid decline in 14C age, around 14.2 and 13.9 ka BP.

Rapid Ice Margin Fluctuations during the Younger Dryas in the Tropical Andes

2000 ◽  
Vol 54 (3) ◽  
pp. 328-338 ◽  
Author(s):  
Donald T. Rodbell ◽  
Geoffrey O. Seltzer
Keyword(s):  
Younger Dryas ◽  
Late Glacial ◽  
Tropical Andes ◽  
Radiocarbon Dates ◽  
Peruvian Andes ◽  
Southern Peru ◽  
Ice Cap ◽  
The North ◽  
Glacier Advance ◽  
Lake Deposits

Radiocarbon dated lacustrine sequences in Perú show that the chronology of glaciation during the late glacial in the tropical Andes was significantly out-of-phase with the record of climate change in the North Atlantic region. Fluvial incision of glacial-lake deposits in the Cordillera Blanca, central Perú, has exposed a glacial outwash gravel; radiocarbon dates from peat stratigraphically bounding the gravel imply that a glacier advance culminated between ∼11,280 and 10,990 14C yr B.P.; rapid ice recession followed. Similarly, in southern Perú, ice readvanced between ∼11,500 and 10,900 14C yr B.P. as shown by a basal radiocarbon date of ∼10,870 14C yr B.P. from a lake within 1 km of the Quelccaya Ice Cap. By 10,900 14C yr B.P. the ice front had retreated to nearly within its modern limits. Thus, glaciers in central and southern Perú advanced and retreated in near lockstep with one another. The Younger Dryas in the Peruvian Andes was apparently marked by retreating ice fronts in spite of the cool conditions that are inferred from the ∂18O record of Sajama ice. This retreat was apparently driven by reduced precipitation, which is consistent with interpretations of other paleoclimatic indicators from the region and which may have been a nonlinear response to steadily decreasing summer insolation.

scholarly journals Late Glacial and Holocene aeolian deposition and soil formation in relation to the Late Palaeolithic Ahrensburg occupation, site Geldrop-A2, the Netherlands

2018 ◽  
Vol 97 (1-2) ◽  
pp. 3-29 ◽  
Author(s):  
C. Kasse ◽  
L.A. Tebbens ◽  
M. Tump ◽  
J. Deeben ◽  
C. Derese ◽  
...  
Keyword(s):  
Younger Dryas ◽  
Soil Formation ◽  
Late Glacial ◽  
Human Occupation ◽  
Radiocarbon Dates ◽  
Human Land Use ◽  
Initial Soil ◽  
Aeolian Dunes ◽  
Late Glacial And Holocene ◽  
Late Palaeolithic

AbstractThe lithostratigraphy, age and human occupation of the Late Glacial and Holocene aeolian succession of a Late Palaeolithic Ahrensburg site in the excavation Geldrop-A2 (municipality of Heeze-Leende) have been investigated. The exposure revealed a stacked sequence of aeolian sand units and intercalated soils (Older Coversand II, Younger Coversand I (YCI), Usselo Soil, Younger Coversand II (YCII), Holocene podzol, drift sand). Fourteen optically stimulated luminescence dates on quartz and three radiocarbon dates provide the age control of the aeolian deposition (coversands, drift sand), landscape stability (soils) and human occupation. The upper part of the YCI unit was dated to the early Late Glacial. The well-developed Usselo Soil was formed during a phase of landscape stability during the late Allerød interstadial and onset of the Younger Dryas stadial. During the Younger Dryas, low aeolian dunes were formed locally (YCII), as a response to landscape instability due to cooling and vegetation decline. In the fine-grained lower part of the YCII unit an initial soil testifies to a decadal to centennial period of landscape stability. An Ahrensburg site in the upper part of this initial soil was dated at 10,915±35 BP (c. 12,854–12,789 cal BP). The lithostratigraphic position, radiocarbon dates of the underlying Usselo Soil and a possibly old-wood effect of up to 200 years suggest that Ahrensburg occupation of the dune environment occurred during the early Younger Dryas, shortly afterc. 10,750 BP (12,750 cal BP). Landscape stability and podzol soil formation dominated the early and middle Holocene periods. Drift-sand deposition, probably related to human land use and vegetation decline, occurred in a 200-year period from the 16th to the 18th centuries.

scholarly journals A Lateglacial palaeosol cover in the Altdarss area, southern Baltic Sea coast (northeast Germany): investigations on pedology, geochronology and botany

2006 ◽  
Vol 85 (3) ◽  
pp. 197-220 ◽  
Author(s):  
K. Kaiser ◽  
A. Barthelmes ◽  
S. Czakó Pap ◽  
A. Hilgers ◽  
W. Janke ◽  
...  
Keyword(s):  
Soil Cover ◽  
Younger Dryas ◽  
Soil Surface ◽  
Vegetation Pattern ◽  
Buried Soils ◽  
Radiocarbon Dates ◽  
Buried Soil ◽  
Nw Europe ◽  
Aeolian Sands ◽  
Sea Coast

AbstractA new site with Lateglacial palaeosols covered by 0.8 - 2.4 m thick aeolian sands is presented. The buried soils were subjected to multidisciplinary analyses (pedology, micromorphology, geochronology, dendrology, palynology, macrofossils). The buried soil cover comprises a catena from relatively dry (’Nano’-Podzol, Arenosol) via moist (Histic Gleysol, Gleysol) to wet conditions (Histosol). Dry soils are similar to the so-called Usselo soil, as described from sites in NW Europe and central Poland. The buried soil surface covers ca. 3.4 km2. Pollen analyses date this surface into the late Allerød. Due to a possible contamination by younger carbon, radiocarbon dates are too young. OSL dates indicate that the covering by aeolian sands most probably occurred during the Younger Dryas. Botanical analyses enables the reconstruction of a vegetation pattern typical for the late Allerød. Large wooden remains of pine and birch were recorded.

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