δ18O and δ13C of planktonic foraminifer Globigerinoides ruber: Effects of test size sampling and laboratory treatment

doi:10.1016/j.palwor.2023.01.012

	*δ¹⁸O and δ¹³C of planktonic foraminifer Globigerinoides* ruber: Effects of test size sampling and laboratory treatment**
	Xu, Ye 2,3; Li, Bao-Hua 1,2,3
刊名	PALAEOWORLD
	2024-03-01
卷号	33 期号:1 页码:257-266
关键词	Cleaning method test size stable isotope planktonic foraminifera Globigerinoides ruber
ISSN号	1871-174X
DOI	10.1016/j.palwor.2023.01.012
通讯作者	Li, Bao-Hua(bhli@nigpas.ac.cn)
英文摘要	The effects of test size sampling and ultrasonic cleaning on stable oxygen (delta O-18) and carbon (delta C-13) isotopes of planktonic foraminifera (Globigerinoides ruber) were evaluated in this study. The G. ruber tests observed under the scanning electron microscope show that shells can be completely cleaned only through cracking and ultrasonic cleaning. We found that there is no statistically significant effect of cleaning on obtaining more stable and reliable delta O-18 values of G. ruber, suggesting cracking and ultrasonic cleaning may be unnecessary before isotope analysis. Five size ranges were chosen to investigate the delta O-18 and delta C-13 differences in test size. The results show that there is a positive correlation between the delta C-13 value and test size. No obvious delta O-18 difference is observed for the size range from 150 mu m to 355 mu m, though a stronger delta O-18 depletion exists for the coarser fraction (> 355 mu m). To obtain more consistent and accurate stable isotopes, and considering the size-linked delta C-13, it is recommended to select the 200-355 mu m size fraction of G. ruber with the size range as narrow as possible. (c) 2023 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved.
资助项目	National Natural Science Foundation of China[41776073] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000]
WOS关键词	ISOTOPIC COMPOSITION ; STABLE-ISOTOPES ; DIFFERENTIAL DISSOLUTION ; CORE-TOPS ; SURFACE ; CARBON ; TEMPERATURE ; OXYGEN ; FRACTIONATION ; CYCLES
WOS研究方向	Paleontology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001171092200001
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/43544]
专题	中国科学院南京地质古生物研究所
通讯作者	Li, Bao-Hua
作者单位	1.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironment, 39 East Beijing Rd, Nanjing 210008, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, 39 East Beijing Rd, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Xu, Ye,Li, Bao-Hua. δ¹⁸O and δ¹³C of planktonic foraminifer Globigerinoides ruber: Effects of test size sampling and laboratory treatment[J]. PALAEOWORLD,2024,33(1):257-266.
APA	Xu, Ye,&Li, Bao-Hua.(2024).δ¹⁸O and δ¹³C of planktonic foraminifer Globigerinoides ruber: Effects of test size sampling and laboratory treatment.PALAEOWORLD,33(1),257-266.
MLA	Xu, Ye,et al."δ¹⁸O and δ¹³C of planktonic foraminifer Globigerinoides ruber: Effects of test size sampling and laboratory treatment".PALAEOWORLD 33.1(2024):257-266.