Dominance of coralline algae in the South China Sea: Insights into their responses to paleoceanographic events over the last 20 million years

doi:10.1016/j.palaeo.2025.112805

NIGPAS OpenIR

	Dominance of coralline algae in the South China Sea: Insights into their responses to paleoceanographic events over the last 20 million years
通讯作者	Yu, Kefu([email protected])
	Li, Yinqiang 1,2,3,4,5; Yu, Kefu 4,5; Bian, Lizeng 6; Hu, Baoqing 1,2; Liao, Zhiheng 1,2,4,5; Huang, Shengmin 1,2; Song, Zhiguang 1,2; Liao, Weihua 7
	2025-04-01
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	663 页码:12
摘要	The evolution of Earth's climate is primarily reconstructed from deep-sea cores, while data from shallow-water carbonate successions play only a supplementary role. Furthermore, most available information originates from Western Europe, with limited data from the Middle East and almost none from the Americas and the Far East. While there has been significant discussion on the response of coralline algae to sea-level changes, their reactions to other paleoceanographic events and the long-term trends in their composition, abundance, and richness remain poorly understood. This study examines coralline algae in the carbonate rocks of Well CK2 in the northern South China Sea. A total of twelve genera, eight families, and three orders of coralline algae were identified in 666 petrologic thin sections. Coralline algal abundance was relatively high, between 10 and 4.28 Ma. In the early Miocene, coralline algal richness exhibited three distinct increases at 17.55 Ma, 17.45 Ma, and 17.44 Ma, corresponding to the Miocene Climate Optimum, likely as a response to global warming during this period. The distribution of Mesophyllum declined in response to a series of cooling events over the past 20 million years. Between 14.13 and 8.77 Ma, the concentration of Aethesolithon corresponded to a long-term sea-level fall, while its extinction indicated a rapid sea-level rise. At 6.71 Ma, the increasing abundance of Lithothamnion aligned with a rapid sea-level rise. A relative sea-level fall at 10 Ma was recorded by an increase in shallow-water coralline algae, which may be linked to regional uplift caused by the Dongsha movement. The algal distribution in the Xisha Islands reflects major geological and climatic events over the past 20 million years, underscoring the value of coralline algae as indicators of past climatic and environmental changes. These findings provide a new perspective on the late Cenozoic carbonate systems of the Far East.
关键词	Coralline red algae Coral reefs Paleoceanography Xisha Islands
DOI	10.1016/j.palaeo.2025.112805
收录类别	SCI
语种	英语
关键词[WOS]	XISHA CARBONATE PLATFORMS ; LEVEL CHANGES ; RED ALGAE ; MIOCENE CARBONATES ; DEPTH INDICATORS ; REEF ; CLIMATE ; EVOLUTION ; ISLANDS ; RHODOPHYTA
资助项目	National Natural Science Foundation of China[42030502] ; National Natural Science Foundation of China[42090041] ; Middle-aged and Young Teachers' Basic Ability Promotion Project of Guangxi[2023KY0401] ; Opening Foundation of the Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University[NNNU-KLOP-X2204]
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:001426353100001
项目资助者	National Natural Science Foundation of China ; Middle-aged and Young Teachers' Basic Ability Promotion Project of Guangxi ; Opening Foundation of the Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University
出版者	ELSEVIER
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44929
专题	中国科学院南京地质古生物研究所
通讯作者	Yu, Kefu
作者单位	1.Nanning Normal Univ, Key Lab Environm Change & Resources Use Beibu Gulf, Minist Educ, Nanning 530001, Peoples R China 2.Nanning Normal Univ, Guangxi Key Lab Earth Surface Proc & Intelligent S, Nanning 530001, Peoples R China 3.Guangxi Beihai Wetland Ecosyst Natl Observat & Res, Beihai 536001, Peoples R China 4.Guangxi Univ, Guangxi Lab Study Coral Reefs South China Sea, Nanning 530004, Peoples R China 5.Guangxi Univ, Sch Marine Sci, Nanning 530004, Peoples R China 6.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210093, Peoples R China 7.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Li, Yinqiang,Yu, Kefu,Bian, Lizeng,et al. Dominance of coralline algae in the South China Sea: Insights into their responses to paleoceanographic events over the last 20 million years[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2025,663:12.
APA	Li, Yinqiang.,Yu, Kefu.,Bian, Lizeng.,Hu, Baoqing.,Liao, Zhiheng.,...&Liao, Weihua.(2025).Dominance of coralline algae in the South China Sea: Insights into their responses to paleoceanographic events over the last 20 million years.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,663,12.
MLA	Li, Yinqiang,et al."Dominance of coralline algae in the South China Sea: Insights into their responses to paleoceanographic events over the last 20 million years".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 663(2025):12.