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Piston corers for peat and lake sediments
Two pistons corers are described which are successful in cuting the wood or undecomposed fibrous peat that characterizes many peat deposits. These modified corers are equipped with a serrated cuttingExpand
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Late Pleistocene and Holocene paleoenvironments of the North Pacific coast
Abstract Unlike the North Atlantic, the North Pacific Ocean probably remained free of sea ice during the last glacial maximum (LGM), 22,000 to 17,000 BP. Following a eustatic low in sea level of ca.Expand
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Responses of an arctic landscape to Lateglacial and early Holocene climatic changes: the importance of moisture
Many of the physical and biological processes that characterize arctic ecosystems are unique to high latitudes, and their sensitivities to climate change are poorly understood. Stratigraphic recordsExpand
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Fire is the keystone disturbance in the Alaskan boreal forest and is highly influenced by summer weather patterns. Records from the last 53 years reveal high vari- ability in the annual area burnedExpand
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Drought, vegetation change, and human history on Rapa Nui (Isla de Pascua, Easter Island)
Stratigraphic records from lake sediment cores and slope deposits on Rapa Nui document prehistoric human impacts and natural environmental changes. A hiatus in sedimentation in Rano Raraku suggestsExpand
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Extent and Timing of the Last Glacial Maximum in Southwestern Alaska
A glacier complex composed of confluent alpine glaciers, island ice caps, and piedmont lobes covered much of the Alaska Peninsula and Kodiak Island during the last glacial maximum (LGM). Because thisExpand
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Ice-age megafauna in Arctic Alaska: extinction, invasion, survival
Abstract Radical restructuring of the terrestrial, large mammal fauna living in arctic Alaska occurred between 14,000 and 10,000 years ago at the end of the last ice age. Steppe bison, horse, andExpand
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Soil development at Kongsfjorden, Spitsbergen
Soils at well-drained sites near Kongsfjorden, Spitsbergen, are described in terms of morphology as well as solid and solution phase chemistry. Decarbonation is the dominant soil process and resultsExpand
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Wisconsin and Holocene Glaciation of Southeast Alaska
Abstract Southeast Alaska bears impressive evidence of widespread glacial erosion, but its glacial history is poorly known. A middle Wisconsin interstadial, during which climate may have been onlyExpand
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Late Weichselian and Holocene relative sea-level history of Bröggerhalvöya, Spitsbergen
Abstract Radiocarbon-dated whalebones from raised beaches record a relative sea-level history for Broggerhalvoya, western Spitsbergen that suggest a two-step deglaciation on Svalbard at the end ofExpand
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