富钴结壳中有机碳同位素组成特征及其古海洋意义

史跃中; 胡超涌; 方念乔; 黄俊华

富钴结壳中有机碳同位素组成特征及其古海洋意义

1.
中国地质大学地球科学学院, 湖北武汉 430074
2.
中国地质大学海洋地学中心, 北京 100083

基金项目:

中国大洋协会“十五”课题 DY105-01-04-05

详细信息

作者简介:
史跃中(1977-), 男, 硕士研究生, 目前主要从事海洋地质方面的研究

中图分类号: P59
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- 被引次数: 0
出版历程
- 收稿日期: 2003-11-27
- 刊出日期: 2004-03-25

Carbon Isotopic Composition of Organic Matter in Co-Rich Ferromanganese Crust and Its Implication for Paleoceanography

1.
Faculty ofEarth Sciences, China University of Geosciences, Wuhan 430074, China
2.
Institute ofMarine Geology and Geophysics, China University of Geosciences, Beijing 100083, China

摘要

摘要: 富钴结壳组成与生长环境之间的关系研究对这种未来资源的准确评价和合理利用有重要意义.研究了中太平洋海山区富钴结壳中有机碳同位素组成, 探讨了它们的来源和古海洋的指示意义.研究结果表明, δ¹³C_org值位于-21.86×10^-3~-23.99×10^-3之间, 表明它们来源于海洋表层浮游生物.富钴结壳中有机物质的碳同位素组成的波动响应海洋环境和全球气候的变化, 可以指示古海洋.
- 富钴结壳 /
- 有机碳同位素 /
- 古海洋
Abstract: It is significant to study the relationship between Co-rich crust composition and its growing environmentfor accurate estimate and rational utilization of this future resource. The authors present carbon isotope data of organic matter in Co-rich ferromanganese crust from central Pacific seamount area. The value of δ¹³C_org ranges from -21.86×10^-3 to -23.99×10^-3, implying that the organic matter origins from marine organism. The carbon isotopic composition of organic matter fluctuates during the growth of Co-rich crust and responds to marine environment and global climate change. Hence, it can be a useful proxy for paleoceanography.
- Co-rich ferromanganese crust /
- carbon isotope of organic matter /
- paleoceanography

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图 1 富钴结壳MHD061有机碳同位素组成

Fig. 1. Carbon isotope compositions of organic matter in Co-rich ferromanganese crust MHD061

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表 1 富钴结壳中全碳(TC) 及其同位素组成

Table 1. Total carbon (TC) and its isotope compositions in Co-rich ferromanganese crust

参考文献(17)

Abouchami, W., Goldstein, S. L., Galer, S. J. G., et al., 1997. Secular changes of lead and neodymium in central Pacific seawater recorded by a Fe-Mn crust. Geochimica et Cosmochimica Acta, 61: 3957-3974. doi: 10.1016/S0016-7037(97)00218-4
Bidigare, R. R., Kennicutt, M. C., Keeney-Keenicutt, W. L., 1991. Isolation and purification of chorophylls a and b for the determination of stable carbon and nitrogen isotope compositions. Analytical Chemistry, 63: 130-133.
Christensen, J. N., Halliday, A. N., Godfrey, L. V., et al., 1997. Climate and ocean dynamics and the lead isotopic records in Pacific ferromanganese crusts. Science, 277: 913-918.
Duan, Y., Luo, B. J., 1998. Palaeoclimate evidence for carbon isotopic changes of organic matters in modern deep-sea sediments. Marine Geology & Quaternary Geology, 18 (4): 53-58 (in Chinese with English abstract).
Halbach, P., Puteanus, D., 1984. The influence of carbonate dissolution rate on the growth and composition of Co-rich ferromanganese crusts from central Pacific seamount area. Earth and Planetary Science Letters, 68: 73-87. doi: 10.1016/0012-821X(84)90141-9
Henderson, G. M., Burton, K. W., 1999. Using ²³⁴U/²³⁸U to assess diffusion rates of isotope tracers in ferromanganese crusts. Earth and Planetary Science Letters, 170: 169-179. doi: 10.1016/S0012-821X(99)00104-1
Lehmann, M. F., Bernasconi, S. M., Barbieri, L., et al., 2002. Preservation of organic matter and alteration of its carbon and nitrogen isotope composition during simulated and in situ early sedimentary diagenesis. Geochimica et Cosmochimica Acta, 66: 3573-3584. doi: 10.1016/S0016-7037(02)00968-7
Ling, H. F., Burton, K. W., O'Nions, R. K., et al., 1997. Evolution of Nd and Pb isotopic in central Pacific seawater from ferromanganese crusts. Earth and Planetary Science Letters, 146: 1-12. doi: 10.1016/S0012-821X(96)00224-5
Ma, W. L., Jin X. L., Chen J. L., et al., 2002. Geological characteristics of Co-rich crusts from the mid-Pacific seamounts area. Donghai Marine Science, 20 (3): 11-23 (in Chinese with English abstract).
Mandernack, K. W., Bazylinski, D. A., Shanks, W. C., et al., 1999. Oxygen and iron isotope studies of magnetite (Fe₃O₄) produced magnetotactic bacteria. Science, 285: 1892-1896. doi: 10.1126/science.285.5435.1892
Mandernack, K. W., Fogel, M. L., Tebo, B. M., et al., 1995. Oxygen isotope analyses of chemically and microbially produced manganese oxides and manganates. Geochimica et Cosmochimica Acta, 59: 4409-4425. doi: 10.1016/0016-7037(95)00299-F
Oldenburg, T. B. P., Rullkotter, J., Bottcher, M. E., et al., 2000. Molecular and isotopic characterization of organic matter in recent and sub-recent sediments from the Dead Sea. Organic Geochemistry, 31: 251-265. doi: 10.1016/S0146-6380(00)00015-2
Ostrom, N. E., Macko, S. A., Deibel, D., et al., 1997. Seasonal variation in the stable carbon and nitrogen isotope biogeochemistry of a coastal cold ocean environment. Geochimica et Cosmochimica Acta, 61: 2929-2942. doi: 10.1016/S0016-7037(97)00131-2
Sackett, W. M., Eckelmann, W. R., Bender, M. L., et al., 1965. Temperature dependence of carbon isotope composition in marine plankton and sediments. Science, 148: 235-237. doi: 10.1126/science.148.3667.235
Segl, M., Mangini, A., Bonani, G., et al., 1984. ¹⁰Be dating of a manganese crust from central north Pacific and implication for oceanic palaeocirculation. Nature, 309: 540-543. doi: 10.1038/309540a0
马维林, 金翔龙, 陈建林, 等, 2002. 中太平洋海山富钴结壳地质特征. 东海海洋, 20 (3): 11-23. https://www.cnki.com.cn/Article/CJFDTOTAL-DHHY200203001.htm
段毅, 罗斌杰, 1998. 深海现代沉积物有机碳同位素组成变化的古气候证据. 海洋地质和第四纪地质, 18 (4): 53-58.