Coralline algal and foraminiferal records of the Pliocene paleoclimatic conditions and water-depth changes in the northern South China Sea | |
Wu, Feng1; Xie, Xinong2; Coletti, Giovanni3; Zhu, Youhua4; Chen, Beichen5; Shang, Zhilei6 | |
刊名 | MARINE AND PETROLEUM GEOLOGY |
2023-07-01 | |
卷号 | 153页码:12 |
关键词 | South China Sea Xisha islands Carbonate platforms Coralline algae Foraminifer |
ISSN号 | 0264-8172 |
DOI | 10.1016/j.marpetgeo.2023.106276 |
通讯作者 | Wu, Feng(fengwu@hhu.edu.cn) ; Zhu, Youhua(yhzhu@nigpas.ac.cn) |
英文摘要 | Detailed paleontological and sedimentological data from the Pliocene interval of core XK-1 allow for a detailed documentation of the carbonate system in the northern South China Sea (SCS). Six facies are identified. Based on a comprehensive analysis of facies changes, the paleoclimatic conditions and paleowater depths during the Pliocene in the Xisha area in the northern SCS are reconstructed. The changes in the abundance of the algal genus Sporolithon and the planktonic foraminifera species Orbulina universa, Globigerinoides quadrilobatus, Globorotalia menardii, and Globigerinoides obliquus indicate that the climate in the SCS gradually became warmer from 5.3 to 4.3 Ma and then cooled from 4.3 to 2.6 Ma, which was attributed to the changes in atmospheric pCO2. The high abundance of encrusting acervulinids and coralline algae and the low coral abundance suggest periods of elevated nutrient level, possibly linked to increases in nutrient input from the higher latitudes. Distinct changes in coralline algal and foraminiferal facies help the reconstruction of paleowater depths during the Pliocene in the Xisha area. The water depth was generally rising from 5.3 to 4.3 Ma and declining afterward, which was similar to that in the Yinggehai-Qiongdongnan Basin (located on the northern part of the Xisha area). This similarity indicates that there was a common factor controlling the long-term variation in water depth in the northern SCS. The comparison between paleowater depth changes and global eustatic sea-level fluctuations indicates that the regional tectonic subsidence was important from 5.3 to 4.7 Ma. Such subsidence was probably related to thermal subsidence after the magmatism intrusion activity beneath the basement at the initial stage of the Pliocene. This study indicates that the comprehensive analysis of algal and foraminiferal facies has great potential to recon-struct the climatic conditions and water depths in the ancient times. |
资助项目 | Zhanjiang Branch of China National Offshore Oil Corporation ; National Natural Science Foundation of China[42106058] ; National Natural Science Foundation of China[42130408] ; National Natural Science Foundation of China[41976045] ; Fundamental Research Funds for the Central Universities[B220202046] |
WOS关键词 | GULF-OF-CALIFORNIA ; XISHA ISLANDS ; LATE MIOCENE ; BENTHIC FORAMINIFERA ; CARBONATE PRODUCTION ; RYUKYU ISLANDS ; LEVEL CHANGES ; RED ALGAE ; RHODOPHYTA ; HISTORY |
WOS研究方向 | Geology |
语种 | 英语 |
出版者 | ELSEVIER SCI LTD |
WOS记录号 | WOS:000991243900001 |
资助机构 | Zhanjiang Branch of China National Offshore Oil Corporation ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities |
内容类型 | 期刊论文 |
源URL | [http://ir.nigpas.ac.cn/handle/332004/42177] |
专题 | 中国科学院南京地质古生物研究所 |
通讯作者 | Wu, Feng; Zhu, Youhua |
作者单位 | 1.Hohai Univ, Coll Oceanog, Nanjing 210098, Peoples R China 2.China Univ Geosci, Coll Marine Sci & Technol, Wuhan 430074, Peoples R China 3.Milano Bicocca Univ, Dept Earth & Environm Sci, Piazza Sci 4, I-20126 Milan, Italy 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 5.China Natl Offshore Oil Corp Ltd, Shenzhen Branch, Shenzhen 518067, Peoples R China 6.China Natl Offshore Oil Corp Ltd, Beijing 100010, Peoples R China |
推荐引用方式 GB/T 7714 | Wu, Feng,Xie, Xinong,Coletti, Giovanni,et al. Coralline algal and foraminiferal records of the Pliocene paleoclimatic conditions and water-depth changes in the northern South China Sea[J]. MARINE AND PETROLEUM GEOLOGY,2023,153:12. |
APA | Wu, Feng,Xie, Xinong,Coletti, Giovanni,Zhu, Youhua,Chen, Beichen,&Shang, Zhilei.(2023).Coralline algal and foraminiferal records of the Pliocene paleoclimatic conditions and water-depth changes in the northern South China Sea.MARINE AND PETROLEUM GEOLOGY,153,12. |
MLA | Wu, Feng,et al."Coralline algal and foraminiferal records of the Pliocene paleoclimatic conditions and water-depth changes in the northern South China Sea".MARINE AND PETROLEUM GEOLOGY 153(2023):12. |
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