Testing coral paleothermometers (B/Ca, Mg/Ca, Sr/Ca, U/Ca and δ<sup>18</sup>O) under impacts of large riverine runoff

CHEN Tianran; YU Kefu; ZHAO Jianxin; YAN Hongqiang; SONG Yinxian; FENG Yuexing; CHEN Tegu

doi:10.1007/s13131-015-0705-9

淡水径流影响下珊瑚温度计(B/Ca、Mg/Ca、Sr/Ca、U/Ca和δ¹⁸O)的稳定性测试

doi: 10.1007/s13131-015-0705-9

1.
中国科学院边缘海地质重点实验室, 中国科学院南海海洋研究所, 广州 510301, 中国
2.
Radiogenic Isotope Laboratory, School of Earth Sciences, The University of Queensland, Brisbane, QLD 4072, Australia

基金项目: The National Basic Research Program (973 program) of China under contract No. 2013CB956104; the National Natural Science Foundation of China under contract Nos 41106054, 41306109 and 41476038.

计量
- 文章访问数: 1645
- HTML全文浏览量: 50
- PDF下载量: 1366
- 被引次数: 0
出版历程
- 收稿日期: 2014-04-10
- 修回日期: 2014-10-08

Testing coral paleothermometers (B/Ca, Mg/Ca, Sr/Ca, U/Ca and δ¹⁸O) under impacts of large riverine runoff

1.
Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
2.
Radiogenic Isotope Laboratory, School of Earth Sciences, The University of Queensland, Brisbane, QLD 4072, Australia

摘要

摘要: 对南海北部珠江口采集的滨珊瑚骨骼地球化学温度计指标B/Ca、Mg/Ca、Sr/Ca、U/Ca和δ¹⁸O进行了分析,目的在于测试这些地化指标在径流冲淡水影响下的稳定性.测试方法是将各个地化指标与水温对比并进行相关性分析.结果表明,Sr/Ca比值与当地水温有最好的相关性(r²=0.59),说明Sr/Ca是最稳定的温度计指标.而δ¹⁸O(r²=0.46)、B/Ca(r²=0.43)和U/Ca(r²=0.41)与水温的相关系数相对较低,说明这些指标除受到水温控制以外还受到其他环境因素的影响.在这些指标中,相关性最低的是Mg/Ca(r²=0.27),说明Mg/Ca受到除水温以外的因素影响最为显著,这就限制了Mg/Ca作为有效的温度计指标应用于古气候重建的研究.
- 滨珊瑚 /
- 水温代用指标 /
- 珊瑚温度计 /
- 径流 /
- 珠江口 /
- 南海北部
Abstract: Sea surface temperature (SST) proxies including B/Ca, Mg/Ca, Sr/Ca, U/Ca and δ¹⁸O were analyzed in the skeleton of a Porites coral collected from the Zhujiang River (Pearl River) Estuary (ZRE). These geochemical proxies are influenced by river runoff and this area of the northern South China Sea is strongly affected by seasonal freshwater floods. We assessed the robustness of each SST proxy through comparison with the local instrumental SST. Coral Sr/Ca shows the highest correlation with SST variations (r²=0.59), suggesting Sr/Ca is the most robust SST proxy. In contrast, coral δ¹⁸O (r²=0.46), B/Ca (r²=0.43) and U/Ca (r²=0.41) ratios were only moderately correlated with SST variations, suggesting that they are disturbed by some other factors in addition to SST. The poor correlation (r²=0.27) between SST and Mg/Ca indicates that Mg/Ca in coral skeletons is not a simple function of SST variations. This may ultimately limit the use of Mg/Ca as a coral paleothermometer.
- Porites coral /
- SST proxies /
- coral paleothermometers /
- riverine runoff /
- Zhujiang River (Pearl River) Estuary /
- northern South China Sea

HTML全文

参考文献(44)

Allison N, Finch A A. 2007. High temporal resolution Mg/Ca and Ba/Ca records in modern Porites lobata corals. Geochem, Geo-phys, Geosyst, 8(5): Q05001, doi: 10.1029/2006GC001477

Beck J W, Edwards R L, Ito E, et al. 1992. Sea-surface temperature from coral skeletal strontium/calcium ratios. Science, 257(5070): 644-647

Cardinal D, Hamelin B, Bard E, et al. 2001. Sr/Ca, U/Ca and δ¹⁸O re-cords in recent massive corals from Bermuda: relationships with sea surface temperature. Chem Geol, 176(1-4): 213-233

Chen Tianran, Yu Kefu, Chen Tegu. 2013. Sr/Ca-Sea surface temper-ature calibration in the coral Porites lutea from subtropical northern South China Sea. Palaeogeography, Palaeoclimato-logy, Palaeoecology, 392: 98-104

Cohen A L, Owens K E, Layne G D, et al. 2002. The effect of algal sym-bionts on the accuracy of Sr/Ca paleotemperatures from coral. Science, 296(5566): 331-333

Corrège T. 2006. Sea surface temperature and salinity reconstruction from coral geochemical tracers. Palaeogeography, Palaeocli-matology, Palaeoecology, 232(2-4): 408-428

Corrège T, Delcroix T, Récy J, et al. 2000. Evidence for stronger El Ni.o-Southern Oscillation (ENSO) events in a mid-Holocene massive coral. Paleoceanography, 15(4): 465-470

Corrège T, Quinn T, Delcroix T, et al. 2001. Little Ice Age sea surface temperature variability in the southwest tropical Pacific. Geo-phys Res Lett, 28(18): 3477-3480

Crowley T J, Quinn T M, Hyde W T. 1999. Validation of coral temper-ature calibrations. Paleoceanography, 14(5): 605-615 de Villiers S, Shen G T, Nelson B K. 1994. The Sr/Ca-temperature re-lationship in coralline aragonite: Influence of variability in (Sr/Ca)_seawater and skeletal growth parameters. Geochimica et Cosmochimica Acta, 58(1): 197-208

de Villiers S, Nelson B K, Chivas A R. 1995. Biological controls on cor-al Sr/Ca and δ¹⁸O reconstructions of sea surface temperatures. Science, 269(5228): 1247-1249

Dong Lixian, Su Jilan, Wong L A, et al. 2004. Seasonal variation and dynamics of the Pearl River plume. Continent Shelf Res, 24(16): 1761-1777

Fallon S J, McCulloch M T, Alibert C. 2003. Examining water temper-ature proxies in Porites corals from the Great Barrier Reef: a cross-shelf comparison. Coral Reefs, 22(4): 389-404

Fallon S J, McCulloch M T, van Woesik R, et al. 1999. Corals at their latitudinal limits: laser ablation trace element systematics in Porites from Shirigai Bay, Japan. Earth and Planetary Science Letters, 172(3-4): 221-238

Finch A A, Allison N. 2008. Mg structural state in coral aragonite and implications for the paleoenvironmental proxy. Grephys Res Lett, 35(8): L08704, doi: 10.1029/2008GL033543

Gagan M K, Ayliffe L K, Hopley D, et al. 1998. Temperature and sur-face-ocean water balance of the Mid-Holocene tropical west-ern Pacific. Science, 279(5353): 1014-1018

Gischler E, Lomando A J, Alhazeem S H, et al. 2005. Coral climate proxy data from a marginal reef area, Kuwait, northern Arabi-an-Persian Gulf. Palaeogeography, Palaeoclimatology, Palaeoe-cology, 228(1-2): 86-95

Grove C A, Kasper S, Zinke J, et al. 2013. Confounding effects of coral growth and high SST variability on skeletal Sr/Ca: Implications for coral paleothermometry. Geochem Geophys Geosyst, 14(4): 1277-1293

Hart S R, Cohen A L. 1996. An ion probe study of annual cycles of Sr/Ca and other trace elements in corals. Geochimica et Cosmochimica Acta, 60(16): 3075-3084

Hendy E J, Gagan M K, Alibert C A, et al. 2002. Abrupt decrease in tropical pacific sea surface salinity at end of Little Ice Age. Sci-ence, 295(5559): 1511-1514

Howell P. 2001. ARAND time series and spectral analysis package for the Macintosh, Brown University. In: IGBP PAGES/World Data Center for Paleoclimatology, Data Contribution Series #2001-031. Boulder, Colorado, USA: NOAA/NGDC Paleoclimatology Program

Inoue M, Suwa R, Suzuki A, et al. 2011. Effects of seawater pH on growth and skeletal U/Ca ratios of Acropora digitifera coral polyps. Geophys Res Lett, 38(12): L12809, doi: 10.1029/ 2011GL047786

Inoue M, Suzuki A, Nohara M, et al. 2007. Empirical assessment of coral Sr/Ca and Mg/Ca ratios as climate proxies using colonies grown at different temperatures. Geophys ResLett, 34(12): L12611, doi: 10.1029/2007GL029628

Liu Zhifei, Colin C, Huang Wei, et al. 2007. Clay minerals in surface sediments of the Pearl River drainage basin and their contribu-tion to the South China Sea. Chinese Sci Bull, 52(8): 1101-1111

Marshall J F, McCulloch M T. 2002. An assessment of the Sr/Ca ratio in shallow water hermatypic corals as a proxy for sea surface temperature. Geochimica et Cosmochimica Acta, 66(18): 3262-3280

McCulloch M T, Gagan M K, Mortimer G E, et al. 1994. A high-resolu-tion Sr/Ca and δ¹⁸O coral record from the Great Barrier Reef,Australia, and the 1982-1983 El Niño. Geochimica et Cosmochimica Acta, 58(12): 2747-2754

Meibom A, Cuif J-P, Hillion F, et al. 2004. Distribution of magnesium in coral skeleton. Geophys Res Lett, 31(23): L23306, doi: 10.1029/2004GL021313

Meibom A, Stage M, Wooden J, et al. 2003. Monthly Strontium/Calci-um oscillations in symbiotic coral aragonite: Biological effects limiting the precision of the paleotemperature proxy. Geophys Res Lett, 30(7): 1418, doi: 10.1029/2002GL016864

Min G R, Edwards R L, Taylor F W, et al. 1995. Annual cycles of U/Ca in coral skeletions and U/Ca thermometry. Geochimica et Cosmochimica Acta, 59(10): 2025-2042

Mitsuguchi T, Dang P X, Kitagawa H, et al. 2008. Coral Sr/Ca and Mg/Ca records in Con Dao Island off the Mekong Delta: Assess-ment of their potential for monitoring ENSO and East Asian monsoon. Global and Planetary Change, 63(4): 341-352

Mitsuguchi T, Matsumoto E, Abe O, et al. 1996. Mg/Ca thermometry in coral skeletons. Science, 274(5289): 961-963 Mitsuguchi T, Uchida T, Matsumoto E, et al. 2001. Variations in Mg/Ca, Na/Ca, and Sr/Ca ratios of coral skeletons with chemic-al treatments: Implications for carbonate geochemistry. Geochimica et Cosmochimica Acta, 65(17): 2865-2874

Nguyen A D, Zhao J X, Feng Y X, et al. 2013. Impact of recent coastal development and human activities on Nha Trang Bay, Vietnam: evidence from a Porites lutea geochemical record. Coral Reefs, 32(1): 181-193

Omata T, Suzuki A, Kawahata H, et al. 2006. Oxygen and carbon stable isotope systematics in Porites coral near its latitudinal limit: The coral response to low-thermal temperature stress. Global and Planetary Change, 53(1-2): 137-146

Ourbak T, Corrège T, Malaizé B, et al. 2006. A high-resolution invest-igation of temperature, salinity, and upwelling activity proxies in corals. Geochem, Geophys, Geosyst, 7(3): Q03013, doi: 10.1029/2005GC001064

Ouyang Tingping, Zhu Zhaoyu, Kuang Yaoqiu. 2006. Assessing im-pact of urbanization on river water quality in the Pearl River Delta economic zone, China. Environ Monitor Assessm, 120(1-3): 313-325

Quinn T M, Sampson D E. 2002. A multiproxy approach to recon-structing sea surface conditions using coral skeleton geochem-istry. Paleoceanography, 17(4): 1062, doi: 10.1029/2000PA000528

Reynaud S, Ferrier-Pagès C, Meibom A, et al. 2007. Light and temper-ature effects on Sr/Ca and Mg/Ca ratios in the scleractinian coral Acropora sp. Geochimica et Cosmochimica Acta, 71(2): 354-362

Schrag D P, Linsley B K. 2002. Corals, chemistry, and climate. Sci-ence, 296(5566): 277-278

Sinclair D J, Kinsley L P J, McCulloch M T. 1998. High resolution ana-lysis of trace elements in corals by laser ablation ICP-MS. Geochimica et Cosmochimica Acta, 62(11): 1889-1901

Song Yinxian, Yu Kefu, Zhao Jianxin, et al. 2014. Past 140-year envir-onmental record in the northern South China Sea: Evidence from coral skeletal trace metal variations. Environ Pollut, 185: 97-106

Watanabe T, Minagawa M, Oba T, et al. 2001a. Pretreatment of coral aragonite for Mg and Sr analysis: Implications for coral thermo-meters. Geochem J, 35(4): 265-269

Watanabe T, Winter A, Oba T. 2001b. Seasonal changes in sea surface temperature and salinity during the Little Ice Age in the Carib-bean Sea deduced from Mg/Ca and ¹⁸O/16O ratios in corals. Marine Geology, 173(1-4): 21-35

Weber J N, Woodhead P M J. 1972. Temperature dependence of oxy-gen-18 concentration in reef coral carbonates. J Geophys Res, 77: 463-473

Wei Gangjian, Sun Min, Li Xianhua, et al. 2000. Mg/Ca, Sr/Ca and U/Ca ratios of a porites coral from Sanya Bay, Hainan Island, South China Sea and their relationships to sea surface temper-ature. Palaeogeography, Palaeoclimatology, Palaeoecology, 162(1-2): 59-74

Yu Kefu, Zhao Jianxin, Wei Gangjian, et al. 2005. δ¹⁸O, Sr/Ca and Mg/Ca records of Porites lutea corals from Leizhou Peninsula, northern South China Sea, and their applicability as paleocli-matic indicators. Palaeogeography, Palaeoclimatology, Pa-laeoecology, 218(1-2): 57-73

施引文献

资源附件(0)

访问统计

点击查看大图

计量

文章访问数: 1645
HTML全文浏览量: 50
PDF下载量: 1366
被引次数: 0

淡水径流影响下珊瑚温度计(B/Ca、Mg/Ca、Sr/Ca、U/Ca和δ18O)的稳定性测试

doi: 10.1007/s13131-015-0705-9

计量

出版历程

Testing coral paleothermometers (B/Ca, Mg/Ca, Sr/Ca, U/Ca and δ18O) under impacts of large riverine runoff

计量

出版历程

目录

淡水径流影响下珊瑚温度计(B/Ca、Mg/Ca、Sr/Ca、U/Ca和δ¹⁸O)的稳定性测试

Testing coral paleothermometers (B/Ca, Mg/Ca, Sr/Ca, U/Ca and δ¹⁸O) under impacts of large riverine runoff