Paleoenvironmental changes during the late Quaternary as inferred from foraminifera assemblages in the Laizhou Bay | |
Yao Jing1,2,3; Yu Hongjun2; Xu Xingyong2; Yi Liang4; Chen Guangquan2; Su Qiao2; Yu, HJ (reprint author), State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China. | |
2014-10-01 | |
发表期刊 | ACTA OCEANOLOGICA SINICA |
卷号 | 33期号:10页码:10-18 |
文章类型 | Article |
摘要 | Controlled by climate changes, there were three large-scale transgressions and regressions around the Bohai Sea during the late Quaternary, which were accepted by most geologists. However, a big controversy still exists about the time when the transgressions occurred separately. In order to find out the process of the paleoenvironmental changes around the Bohai Sea in the late Quaternary, the foraminifera assemblages from a new borehole Lz908 in the southern coast of the Laizhou Bay were studied, and then the transgressive strata were indentified. Combined with accelerator mass spectrometry radiocarbon C-14 (AMS(14)C) and optically stimulated luminescence (OSL) ages, the occurrence time of these transgressions were re-determined. The result showed that three major large-scale transgressions occurred separately at the beginning of marine isotopic stage 7 (MIS7), the last interglacial period (MIS5) and the Holocene. In addition, a small-scale transgression occurred in the mid-MIS6, and the corresponding transgressive stratum was deposited. The transgressive deposition of MIS3 was also discovered in this study. However, the characteristics of the foraminifera indicated the environment during this period was colder than that in the MIS5. By comparison with the global sea-level changes, the paleoenvironmental changes around the Bohai Sea in the late Quaternary can be consistent with the global climate changes. |
关键词 | Foraminifera Assemblage Late Quaternary Environmental Changes Laizhou Bay Bohai Sea |
学科领域 | Oceanography |
DOI | 10.1007/s13131-014-0536-0 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000343160500002 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/23793 |
专题 | 海洋地质与环境重点实验室 |
通讯作者 | Yu, HJ (reprint author), State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China. |
作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
第一作者单位 | 中国科学院海洋研究所 |
推荐引用方式 GB/T 7714 | Yao Jing,Yu Hongjun,Xu Xingyong,et al. Paleoenvironmental changes during the late Quaternary as inferred from foraminifera assemblages in the Laizhou Bay[J]. ACTA OCEANOLOGICA SINICA,2014,33(10):10-18. |
APA | Yao Jing.,Yu Hongjun.,Xu Xingyong.,Yi Liang.,Chen Guangquan.,...&Yu, HJ .(2014).Paleoenvironmental changes during the late Quaternary as inferred from foraminifera assemblages in the Laizhou Bay.ACTA OCEANOLOGICA SINICA,33(10),10-18. |
MLA | Yao Jing,et al."Paleoenvironmental changes during the late Quaternary as inferred from foraminifera assemblages in the Laizhou Bay".ACTA OCEANOLOGICA SINICA 33.10(2014):10-18. |
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