Abrupt reorganization of North Pacific and western North American climate during the last deglaciation
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چکیده
منابع مشابه
Abrupt climate oscillations during the last deglaciation in central north america
Evidence from stable isotopes and a variety of proxies from two Ontario lakes demonstrate that many of the late glacial-to-early Holocene events that are well known from the North Atlantic seaboard, such as the Gerzensee-Killarney Oscillation (also known as the Intra-Allerod Cold Period), Younger Dryas, and Preboreal Oscillation, also occurred in central North America. These results thus imply ...
متن کاملSouthern Ocean source of 14C-depleted carbon in the North Pacific Ocean during the last deglaciation
During the last deglaciation, atmospheric carbon dioxide concentrations rose at the same time that the 114C of that CO2 fell. This has been attributed to the release of 14C-depleted carbon dioxide from the deep ocean1, possibly vented through the Southern Ocean2–5. Recently, a sediment record from the eastern North Pacific Ocean spanning the last deglaciation was interpreted to reflect transpor...
متن کاملAsynchronous instability of the North American-Arctic and Greenland ice sheets during the last deglaciation
The chronology of deglacial meltwater pulses from the Laurentide Ice Sheet is well documented. However, the deglacial history of the North American-Arctic (north-eastern Laurentide and Innuitian) and western Greenland ice sheets draining into the Labrador Sea via Baffin Bay is less well constrained. Here we present new high-resolution, radiocarbon-dated records from the central Baffin Bay spann...
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[1] Despite its tremendous size, the deep North Pacific has received relatively little attention by paleoceanographers. It was recently suggested that the deep North Pacific was directly ventilated by dense waters formed in the subarctic Pacific during Heinrich Stadial 1 (HS1) of the early deglaciation. Here we present new redox-sensitive trace metal data from a sediment core at 2393m in the su...
متن کاملAsynchronous Climate Changes between Japan and the North Atlantic during the Last Deglaciation: Full
ASYNCHRONOUS CLIMATE CHANGES BETWEEN JAPAN AND THE NORTH ATLANTIC DURING THE LAST DEGLACIATION: FULL DESCRIPTION NAKAGAWA, Takeshi1, KITAGAWA, Hiroyuki2, TARASOV, Pavel E.3, GOTANDA, Katsuya4, SAWAI, Yuki4, and YASUDA, Yoshinori4, (1) Institute for Geothermal Sciences, Kyoto Univ, Noguchibaru, Beppu, 874-0903, Japan, [email protected], (2) Graduate School of Environmental Studies, Nagoya ...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2016
ISSN: 0094-8276,1944-8007
DOI: 10.1002/2016gl071244