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| DOI | 10.1126/science.aaz2924 |
| Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition | |
| Bajo P.; Drysdale R.N.; Woodhead J.D.; Hellstrom J.C.; Hodell D.; Ferretti P.; Voelker A.H.L.; Zanchetta G.; Rodrigues T.; Wolff E.; Tyler J.; Frisia S.; Spötl C.; Fallick A.E. | |
| 发表日期 | 2020 |
| ISSN | 0036-8075 |
| 起始页码 | 1235 |
| 结束页码 | 1239 |
| 卷号 | 367期号:6483 |
| 英文摘要 | Radiometric dating of glacial terminations over the past 640,000 years suggests pacing by Earth's climatic precession, with each glacial-interglacial period spanning four or five cycles of ∼20,000 years. However, the lack of firm age estimates for older Pleistocene terminations confounds attempts to test the persistence of precession forcing. We combine an Italian speleothem record anchored by a uranium-lead chronology with North Atlantic ocean data to show that the first two deglaciations of the so-called 100,000-year world are separated by two obliquity cycles, with each termination starting at the same high phase of obliquity, but at opposing phases of precession. An assessment of 11 radiometrically dated terminations spanning the past million years suggests that obliquity exerted a persistent influence on not only their initiation but also their duration. © 2020 American Association for the Advancement of Science. All rights reserved. |
| 关键词 | geochronologyleadpersistencePleistoceneradiocarbon datingspeleothemuraniumarticleAtlantic Oceanchronologydeglaciationice ageMiddle PleistoceneAtlantic OceanAtlantic Ocean (North) |
| 语种 | 英语 |
| 来源机构 | Science |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/133642 |
| 推荐引用方式 GB/T 7714 | Bajo P.,Drysdale R.N.,Woodhead J.D.,et al. Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition[J]. Science,2020,367(6483). |
| APA | Bajo P..,Drysdale R.N..,Woodhead J.D..,Hellstrom J.C..,Hodell D..,...&Fallick A.E..(2020).Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition.,367(6483). |
| MLA | Bajo P.,et al."Persistent influence of obliquity on ice age terminations since the Middle Pleistocene transition".367.6483(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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