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| DOI | 10.1029/2011GC003772 |
| Coupled 100-kyr cycles between 3 and 1 Ma in terrestrial and marine paleoclimatic records | |
| Nie, Junsheng | |
| 通讯作者 | Nie, JS (通讯作者) |
| 发表日期 | 2011 |
| EISSN | 1525-2027 |
| 卷号 | 12 |
| 英文摘要 | Earth's climate over the last one million years experienced several similar to 100-kyr glacial cycles, but no simple forcing mechanism has been identified. Numerous studies have tried to explain strong 100-kyr glacial cycles without recognizable forcing, which has come to be known as the 100-kyr problem. Few studies have examined 100-kyr band paleoclimatic signals before 1 Ma. A recent study has demonstrated that benthic oxygen and carbon isotope records are phase-locked and amplitude-coupled at the 100-kyr band, but that neither is phase-locked to and amplitude-coupled with the 100-kyr eccentricity signal between 3 and 1 Ma. This phasing and amplitude mismatch of the 100-kyr band between 3 and 1 Ma between marine records and the eccentricity forcing signal has been called the late Pliocene-early Pleistocene 100-kyr problem. However, it remains unknown whether terrestrial paleoclimate records are consistent with marine records at the 100-kyr band. Here I show that loess monsoon records from China are amplitude-coupled with benthic oxygen and carbon isotope records at the 100-kyr band, but not with the 100-kyr eccentricity forcing between 3 and 1 Ma. This observation provides further evidence in support of a free 100-kyr oscillation as the cause of the 100-kyr band amplitude variability in paleoclimatic records between 3 and 1 Ma. In contrast, benthic oxygen isotope records and loess monsoon records at the 100-kyr band are not amplitude-coupled with 100-kyr benthic carbon isotope records over the last 0.4 million years, indicating that the late Pleistocene 100-kyr climatic cycles may not result exclusively from a free oscillation. |
| 关键词 | CENOZOIC CLIMATIC-CHANGE1ST-ORDER GLOBAL-MODELCENTRAL LOESS PLATEAUICE-AGE CYCLEGLACIAL CYCLENORTHERN-HEMISPHERECHINESE LOESSTIME-SERIESISOTOPE RECORDPLEISTOCENE |
| 英文关键词 | East Asian monsoons; Pleistocene; Pliocene; benthic isotopes; eccentricity; loess |
| 语种 | 英语 |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| WOS记录号 | WOS:000296341200002 |
| 来源期刊 | GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
 |
| 来源机构 | 中国科学院青藏高原研究所 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/257864 |
| 推荐引用方式 GB/T 7714 | Nie, Junsheng. Coupled 100-kyr cycles between 3 and 1 Ma in terrestrial and marine paleoclimatic records[J]. 中国科学院青藏高原研究所,2011,12. |
| APA | Nie, Junsheng.(2011).Coupled 100-kyr cycles between 3 and 1 Ma in terrestrial and marine paleoclimatic records.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,12. |
| MLA | Nie, Junsheng."Coupled 100-kyr cycles between 3 and 1 Ma in terrestrial and marine paleoclimatic records".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 12(2011). |
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