共 32 条
- [31] Organic geochemical evidence for environmental changes since 34,000 yrs BP from Lago di Mezzano, central ItalyJournal of Paleolimnology, 1999, 22 : 349 - 365Heinz WilkesAntje RamrathJörg F.W. Negendank
Paleoenvironmental changes in the northern Okinawa trough since 25 ka BP: REE and organic carbon evidence
被引：12
|作者：
Xu, Zhaokai
[1
]
Li, Tiegang
[1
]
Nan, Qingyun
[1
]
Yu, Xinke
[1
]
Li, Anchun
[1
]
Choi, Jinyong
[2
]
机构：
[1] Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
[2] Kunsan Natl Univ, Dept Oceanog, Kunsan 573701, South Korea
基金：
中国国家自然科学基金;
关键词：
paleoenvironmental change;
the northern Okinawa trough;
Tsushima Warm Current;
REE;
discriminant function;
EAST-CHINA SEA;
PLANKTONIC-FORAMINIFERA;
LATE PLEISTOCENE;
LATE QUATERNARY;
GEOCHEMICAL CONSTRAINTS;
CONTINENTAL-SHELF;
SURFACE-WATER;
PACIFIC-OCEAN;
ASIAN MONSOON;
YELLOW SEA;
D O I：
10.1007/s12583-012-0254-5
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Paleoenvironmental changes in the northern Okinawa trough covering the last 25 ka were synthetically reconstructed using REE and organic carbon indices of core CSH1. Variations of these parameters revealed three distinct intervals of major sediment provenance changes that can be related to sea-level fluctuation and Tsushima Warm Current evolution. Interval 1 (16-24.7 ka BP) is characterized by dominantly fluvial discharge from the Changjiang (Yangtze River) and Huanghe (Yellow River) as well as high primary productivity. In Interval 2 (7.3-16 ka BP), the Changjiang and Huanghe mouths regressed with sea-level rising. The newly formed Tsushima Warm Current could carry some sediment loads of Taiwan to the study core, especially during its late phase (7.3-8.2 ka BP). Modern oceanographic conditions were finally established since the beginning of Interval 3, leading to more terrigenous contribution from Taiwan, whereas low sea-surface productivity in the study area.
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页码：297 / 310
页数：14
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