VOLCANIC TRIGGERING OF LATE PLIOCENE GLACIATION: EVIDENCE FROM THE FLUX OF VOLCANIC GLASS AND ICE-RAFTED DEBRIS TO THE NORTH PACIFIC OCEAN
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dc.contributor.author | Prueher L.M. | |
dc.contributor.author | Rea D.K. | |
dc.date.accessioned | 2021-03-14T02:56:18Z | |
dc.date.available | 2021-03-14T02:56:18Z | |
dc.date.issued | 2001 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=793205 | |
dc.identifier.citation | Palaeogeography, Palaeoclimatology, Palaeoecology, 2001, 173, 3-4, 215-230 | |
dc.identifier.issn | 0031-0182 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/26681 | |
dc.description.abstract | Mass accumulation rates (MAR) of different components of North Pacific deep-sea sediment provide detailed information about the timing of the onset of major Northern Hemisphere glaciation that occurred at 2.65Ma. An increase in explosive volcanism in the Kamchatka-Kurile and Aleutian arcs occurred at this same time, suggesting a link between volcanism and glaciation. Sediments recovered by piston-coring techniques during ODP Leg 145 provide a unique opportunity to undertake a detailed test of this possibility. Here we use volcanic glass as a proxy for explosive volcanism and ice-rafted debris (IRD) as a proxy for glaciation. The MAR of both glass and IRD increase markedly at 2.65Ma. Further, the flux of the volcanic glass increased just prior to the flux of ice-rafted material, suggesting that the cooling resulting from explosive volcanic eruptions may have been the ultimate trigger for the mid-Pliocene glacial intensification. | |
dc.subject | PALEOCLIMATE | |
dc.subject | PLIOCENE | |
dc.subject | CLIMATE CHANGE | |
dc.subject | VOLCANISM | |
dc.subject | NORTH PACIFIC | |
dc.title | VOLCANIC TRIGGERING OF LATE PLIOCENE GLACIATION: EVIDENCE FROM THE FLUX OF VOLCANIC GLASS AND ICE-RAFTED DEBRIS TO THE NORTH PACIFIC OCEAN | |
dc.type | Статья | |
dc.subject.age | Cenozoic::Neogene::Pliocene | en |
dc.subject.age | Кайнозой::Неоген::Плиоцен | ru |
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