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A severe centennial-scale drought in midcontinental North America 4200 years ago and apparent global linkages
We present evidence from a variety of physical and biological proxies for a severe drought that affected the mid-continent of North America between 4.1 and 4.3 ka. Rapid climate changes associatedExpand
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Temporal and spatial patterns of Holocene dune activity on the Great Plains of North America: megadroughts and climate links
Abstract The Holocene record of eolian sand and loess deposition is reviewed for numerous presently stabilized dune fields on the Great Plains of North America. Dune field activity reflectsExpand
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Holocene Treeline History and Climate Change Across Northern Eurasia
Abstract Radiocarbon-dated macrofossils are used to document Holocene treeline history across northern Russia (including Siberia). Boreal forest development in this region commenced by 10,000 yr B.P.Expand
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Thermophilous molluscs on Svalbard during the Holocene and their paleoclimatic implications
Five species of guide fossils from the Holocene warm period in Svalbard are considered: Mytilus edulis, Modiolus modiolus, Arctica islandica, Littorina littorea and Zirphaea crispata. These are nowExpand
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East African megadroughts between 135 and 75 thousand years ago and bearing on early-modern human origins
The environmental backdrop to the evolution and spread of early Homo sapiens in East Africa is known mainly from isolated outcrops and distant marine sediment cores. Here we present results from newExpand
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Paleoclimatic significance of Late Quaternary eolian deposition on the Piedmont and High Plains, Central United States
Abstract Presently stabilized dune systems on the piedmont of eastern Colorado and adjacent High Plains have been repeatedly re-activated during the past 20,000 years. Radiocarbon andExpand
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A review of postglacial emergence on Svalbard, Franz Josef Land and Novaya Zemlya, northern Eurasia
The pattern of postglacial emergence in the Barents Sea is pivotal to constraining the timing of deglaciation and extent and thickness of the last ice sheet in northern Eurasia. This review unitesExpand
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Pre‐bomb radiocarbon and the reservoir correction for calcareous marine species in the Southern Ocean
Four Antarctic marine mollusc shells, which were collected alive between 1917 and 1940, were analyzed by accelerator mass spectrometry to provide the first pre-bomb radiocarbon measurements ofExpand
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Freshwater and Atlantic water inflows to the deep northern Barents and Kara seas since ca 13 14 C ka: . foraminifera and stable isotopes
Foraminiferal stable isotopes and assemblages from Franz Victoria and St. Anna troughs provide a valuable record of freshwater and Atlantic Water flows to the northern Barents and Kara seas fromExpand
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Post-glacial relative sea-level history of northwestern Spitsbergen, Svalbard
The late Weichselian and Holocene raised-beach sequences on northwestern Spitsbergen provide a detailed record of sea-level oscillations during the last deglacial hemicycle. Initial emergenceExpand
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