Seismic and core investigation on the modern Yellow River Delta reveals the development of the uppermost fluvial deposits and the subsequent transgression system since the postglacial period | |
Liu, Shihao1,2; Li, Peiying2; Feng, Aiping2; Du, Jun2; Gao, Wei2; Xu, Yuanqin2; Yu, Xiaoxiao2; Li, Ping2; Nan, Xueliang2 | |
刊名 | JOURNAL OF ASIAN EARTH SCIENCES |
2016-10 | |
卷号 | 128页码:158-180 |
关键词 | High-resolution seismic profiles Borehole cores Stratigraphic sequence Late Quaternary Environmental evolution Modern Yellow River Delta |
ISSN号 | 1367-9120 |
DOI | 10.1016/j.jseaes.2016.07.009 |
英文摘要 | Postglacial stratigraphy and environmental evolution onshore and offshore the modern Yellow River Delta were investigated and analyzed through similar to 1200-km high-resolution seismic profiles and four bore holes together with previous publications. Four seismic units (SU 1-4, top-to-bottom) that are bounded by seismic surfaces (T-1-T-4) were identified in seismic profiles, while four depositional units (DU 1-4, top to-bottom) were recognized in representative boreholes. These seismic units and depositional units exhibit good correlation. We interpreted SU 1/DU 1 as the modern Yellow River Deltaic deposits, SU 2/DU 2 as the Holocene neritic sediments, SU 3/DU 3 as a Pleistocene-Holocene transitional layer, and SU 4/DU 4 as the lowstand fluvial sediments. Apart from T-1 (seafloor), T-2 (deltaic base), T-3 (shoreface ravinement) and T-4 (transgressive surface) all dip seaward, but their dipping gradients reduced from T-4 to T-2. Therefore, the thicknesses of SU 2-3 were observed seaward-thicker trends presumably in relationship with different spatial sedimentation rates. Additionally, down-core distributions of environmental proxies (e.g. grain size, microfossils and geochemical characteristics) reveal the transgression system (DU 2 and 3) can be further subdivided into 5 intervals associated with sharp environmental changes. |
资助项目 | Basic Research Program from First Institute of Oceanography, SOA[2015G14] |
WOS研究方向 | Geology |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000382338300012 |
内容类型 | 期刊论文 |
源URL | [http://ir.fio.com.cn/handle/2SI8HI0U/3341] |
专题 | 业务部门_海洋地质与地球物理研究室 |
作者单位 | 1.Ocean Univ China, Coll Environm Sci & Engn, Qingdao 266100, Peoples R China; 2.State Ocean Adm, Inst Oceanog 1, 6 Xianxialing Rd, Qingdao 266061, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Shihao,Li, Peiying,Feng, Aiping,et al. Seismic and core investigation on the modern Yellow River Delta reveals the development of the uppermost fluvial deposits and the subsequent transgression system since the postglacial period[J]. JOURNAL OF ASIAN EARTH SCIENCES,2016,128:158-180. |
APA | Liu, Shihao.,Li, Peiying.,Feng, Aiping.,Du, Jun.,Gao, Wei.,...&Nan, Xueliang.(2016).Seismic and core investigation on the modern Yellow River Delta reveals the development of the uppermost fluvial deposits and the subsequent transgression system since the postglacial period.JOURNAL OF ASIAN EARTH SCIENCES,128,158-180. |
MLA | Liu, Shihao,et al."Seismic and core investigation on the modern Yellow River Delta reveals the development of the uppermost fluvial deposits and the subsequent transgression system since the postglacial period".JOURNAL OF ASIAN EARTH SCIENCES 128(2016):158-180. |
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