南海沉积记录中Uk37指数与颗石藻生长季节对应性的探讨

张静静; 陈建芳; 李宏亮; 金海燕; 王斌; 刘飞

doi:10.3969/j.issn.1001-909X.2015.01.004

PDF(1731 KB)

海洋学研究 ›› 2015, Vol. 33 ›› Issue (1) : 25-32. DOI: 10.3969/j.issn.1001-909X.2015.01.004

研究论文

南海沉积记录中U^k₃₇指数与颗石藻生长季节对应性的探讨

张静静^1,2, 陈建芳^1,2, 李宏亮^*1,2, 金海燕^1,2, 王斌^1,2, 刘飞^1,2,3

作者信息 +

Correspondence between Sedimentary U^k₃₇index and seasonal Coccolith production

ZHANG Jing-jing^1,2, CHEN Jian-fang^1,2, LI Hong-liang^*1,2, JIN Hai-yan^1,2, WANG Bin^1,2 , LIU Fei^1,2,3

Author information +

文章历史 +

摘要

根据表层沉积物长链不饱和烯酮的不饱和度(U^k₃₇指数)以及现代海洋0~30 m层平均温度(Sea Surface Temperature, SST),探讨在低温和高温海区利用U^k₃₇指数重建上层古温度的合理性。同时,结合文献报道的南海上层水体中颗石藻(E. huxleyi,G. oceanica和G.ericsonii)细胞丰度的季节特征,探讨了沉积记录中U^k₃₇指数与季节的对应性。结果表明:(1)在极端低温和高温海区(-0.6 ℃和28 ℃)U^k₃₇指数仍是重建上层水体古温度的良好替代指标;(2)由于南海长链烯酮源生物——颗石藻的主要生长季节为冬季,因此,尽管南海表层沉积物中的U^k₃₇指数与4个季节的SST均显著相关,但沉积记录中的U^k₃₇指数反演的SST可能仅代表冬季上层水体的温度。

Abstract

In this study, the U^k₃₇indices for surface sediment samples derived from the South China Sea (SCS), Pacific Ocean, East China Sea (ECS) and Arctic Ocean are analysed, as well as the overlying averaged sea surface temperature (SST) at 0~30 m depth. The alkenone-derived U^k₃₇index is justified as a useful palaeoenvironment proxy at extreme cold and warm end (-0.6 ℃~28 ℃) because the resulting U^k₃₇indices show a significant correlated linear relationship with annual averaged SST. Simultaneously, U^k₃₇indices have been correlated with averaged SST of four seasons in the SCS as well. However, the seasonal pattern of Coccolith (E. huxleyi and G. oceanic), being source of alkenone, is showed prosperous in winter time. As a result, the sedimentary U^k₃₇index may only reflect the winter SST of the overlying waters.

导出引用

张静静, 陈建芳, 李宏亮, 金海燕, 王斌, 刘飞. 南海沉积记录中U^k₃₇指数与颗石藻生长季节对应性的探讨[J]. 海洋学研究. 2015, 33(1): 25-32 https://doi.org/10.3969/j.issn.1001-909X.2015.01.004

ZHANG Jing-jing, CHEN Jian-fang, LI Hong-liang, JIN Hai-yan, WANG Bin , LIU Fei. Correspondence between Sedimentary U^k₃₇index and seasonal Coccolith production[J]. Journal of Marine Sciences. 2015, 33(1): 25-32 https://doi.org/10.3969/j.issn.1001-909X.2015.01.004

中图分类号： P734.5

参考文献

[1] BRASSELL S C, EGLINTON G, MARLOWE I T, et al. Molecular stratigraphy: A new tool for climatic assessment[J]. Nature,1986,320:129-133,doi:10.1038/320129a0.
[2] PRAHL F G, WAKEHAM S G. Calibration of unsaturation patterns in long-chain ketone compositions for paleotemperature assessment[J]. Nature,1987,330:367-369.
[3] MÜLLER P J, KIRST G, RUHLAND G, et al. Calibration of the alkenone paleotemperature index U^k₃₇ based on core-tops from the eastern South Atlantic and the global ocean (60°S-60°N)[J]. Geochimica et Cosmochimica Acta,1998,62(10):1 757-1 772.
[4] SCHOUTEN S, HOPMANS E C, SCHEFU E, et al. Distributional variations in marine crenarchaeotal membrane lipids: A new tool for reconstructing ancient sea water temperatures[J]. Earth and Planetary Science Letters,2002,204(1):265-274.
[5] WUCHTER C, SCHOUTEN S, COOLEN M J L, et al. Temperature-dependent variation in the distribution of tetraether membrane lipids of marine Crenarchaeota: Implications for TEX86 paleothermometry[J]. Paleoceanography,2004,19(4):doi:10.1029/2004PA001041.
[6] ABELMANN A, BRATHAUER U, GERSONDE R, et al. Radiolarian-based transfer function for the estimation of sea surface temperatures in the Southern Ocean (Atlantic Sector)[J]. Paleoceanography,1999,14(3):410-421.
[7] MIX A C, MOREY A E, PISIAS N G, et al. Foraminiferal faunal estimates of paleotemperature: Circumventing the no-analog problem yields cool ice age tropics[J]. Paleoceanography,1999,14(3):350-359.
[8] NÜRNBERG D, MÜLLER A, SCHNEIDER R R. Paleo-sea surface temperature calculations in the equatorial east Atlantic from Mg/Ca ratios in planktic foraminifera: A comparison to sea surface temperature estimates from U^k₃₇', oxygen isotopes, and foraminiferal transfer function[J]. Paleoceanography,2000,15(1):124-134.
[9] PRAHL F G, De LANGE G J, LYLE M, et al. Post-depositional stability of long-chain alkenones under contrasting redox conditions[J]. Nature,1989,341:434-437.
[10] SIKES E L, FARRINGTON J W, KEIGWIN L D. Use of alkenone unsaturation ratios (U^k₃₇) to determine past sea surface temperature: Core top SST calibrations and methodology considerations[J]. Earth and Planetary Science Letters,1991,104(1):36-47.
[11] KENNEDY J A, BRASSELL S C. Molecular stratigraphy of the Santa Barbara Basin: Comparison with historical records of annual climate change[J]. Organic Geochemistry,1992,19(1):235-244.
[12] SIKES E L, KEIGWIN L D. Equaterial Atlantic sea surface temperature for the last 30 kyr: A comparison of U^k₃₇, δ¹⁸O and foramineriferal assemblage temperature estimates[J]. Paleoceanography,1994,9(1):31-45.
[13] PELEJERO C, CALVO E. The upper end of the U^k₃₇temperature calibration revisited[J]. Geochemistry, Geophysics, Geosystems,2003,4(2):doi:10.1029/2002GC000431.
[14] SCHNEIDER R. Alkenone temperature and carbon isotope records: Temporal resolution, offsets, and regionality[J]. Geochemistry, Geophysics, Geosystems,2001,2(1):doi:10.1029/2000GC000060.
[15] PELEJERO C, GRIMALT J O. The correlation between the U^k₃₇ index and sea surface temperature in the warm boundary: the South China Sea[J]. Geochimica et Cosmochimica Acta,1997,61(22):4 789-4 797.
[16] HU Jian-fang, Peng Ping-an. A quantitative method applicable to high resolution molecular stratigraphy[J]. Analysis Chemistry,2000,28(3):283-287.
胡建芳,彭平安.一种适用于高分辨分子地层学研究的有机质分离及定量方法[J].分析化学,2000,28(3):283-287.
[17] BRASSELL S C. Applications of biomarkers for delineating marine paleoclimatic fluctuations during the Pleistocene[M]//Organic Geochemistry. Springer US,1993:699-738.
[18] MIX A C, BARD E, EGLINTON G, et al. Alkenones and multiproxy strategies in paleoceanographic studies[J]. Geochemistry, Geophysics, Geosystems,2000,1(11):doi:10.1029/2000GC000056.
[19] PRAHL F G, MUEHLHAUSEN L A, ZAHNLE D L. Further evaluation of long-chain alkenones as indicators of paleoceanographic conditions[J]. Geochimica et Cosmochimica Acta,1988,52(9):2 303-2 310.
[20] BROERSE A T C, TYRRELL T, YOUNG J R, et al. The cause of bright waters in the Bering Sea in winter[J]. Continental Shelf Research,2003,23(16):1 579-1 596.
[21] LIU Chan-lian,SHAO Lei,CHEN Rong-hua, et al. Distribution of calcareous nannoplankton in surface sediments of the northeastern parts of the South China Sea[J]. Marine Geology & Quaternary Geology,2001,21(3):24-28.
刘传联,邵磊,陈荣华,等.南海东北部表层沉积中钙质超微化石的分布[J].海洋地质与第四纪地质,2001,21(3):24-28.
[22] CHEN Fang, HUANG Yong-xiang, DUAN Wei-wu, et al. Calcareous nannoplankton in surface sediments in the west of the South China Sea[J]. Marine Geology & Quaternary Geology,2002,22(3):35-39.
陈芳,黄永样,段威武,等.南海西部表层沉积中的钙质超微化石[J].海洋地质与第四纪地质,2002,22(3):35-39.
[23] PELEJERO C, GRIMALT J O, HEILIG S, et al. High resolution U^k₃₇'temperature reconstructions in the South China Sea over the last 220 kyrs[J]. Paleoceanography,1999,14(2):224-231.
[24] VOLKMAN J K, BARRETT S M, BLACKBURN S I, et al. Alkenones in Gephyrocapsa oceanica: Implications for studies of paleoclimate[J]. Geochimica et Cosmochimica Acta,1995,59(3):513-520.
[25] SAWADA K, HANDA N, SHIRAIWA Y, et al. Long-chain alkenones and alkyl alkenoates in the coastal and pelagic sediments of the northwest North Pacific, with special reference to the reconstruction of Emiliania huxleyi and Gephyrocapsa oceanic ratios[J]. Organic Geochemistry,1996,24(8):751-764.
[26] MARLOWE I T, BRASSELL S C, EGLINTON G, et al. Long-chain alkenones and alkyl alkenoates and the fossil coccolith record of marine sediments[J]. Chemical Geology,1990,88(3):349-375.
[27] CHEN L Y L, CHEN H Y, CHUNG C W. Seasonal variability of coccolithophore abundance and assemblage in the northern South China Sea[J]. Deep Sea Research Part II: Topical Studies in Oceanography,2007,54(14):1 617-1 633.
[28] CHEN L Y L. Spatial and seasonal variations of nitrate-based new production and primary production in the South China Sea[J]. Deep Sea Research Part I: Oceanographic Research Papers,2005,52(2):319-340.