热带东太平洋晚第四纪的古海洋及古气候记录

肖文申; 王汝建; 叶瑛

热带东太平洋晚第四纪的古海洋及古气候记录

1.
同济大学海洋地质国家重点实验室, 上海 200092
2.
浙江大学地球科学系, 浙江杭州 310012

基金项目:

国家“十五”大洋资源与环境勘查与研究重大专项 DY1051043

国家重点基础研究专项项目 G200078500

国家自然科学基金项目 40321603

国家自然科学基金项目 40276020

国家自然科学基金项目 9946011

高等学校全国优秀博士学位论文作者专项 200126

详细信息

作者简介:
肖文申(1982一)，男，在读硕士生，目前在同济大学海洋与地球科学学院学习.E-mail：weshao@sohu.com

中图分类号: P736.22
计量
- 文章访问数: 3580
- HTML全文浏览量: 102
- PDF下载量: 2
- 被引次数: 0
出版历程
- 收稿日期: 2005-03-11
- 刊出日期: 2006-03-25

Late Quaternary Paleoceanographic and Paleoclimatic Records in the Tropical East Pacific Ocean

1.
State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
2.
Department of Earth Science, Zhejiang University, Hangzhou 310012, China

摘要

摘要: 热带东太平洋8001柱状样晚第四纪以来放射虫标志种Buccinospharea invaginata和Collosphaera tuberosa的研究发现, 它们的初现面(FAD) 出现于柱深22cm和45cm处, 年龄分别为0.21Ma和0.42Ma.它们的初现面年龄与SPECMAP氧同位素记录结合为该柱建立了地层框架.该柱放射虫丰度、生源蛋白石和有机碳含量、粒度的分析显示, 大约在氧同位素11、9~8.4、5~3和1期, 高的放射虫总丰度、第四纪常见种丰度和始新世-渐新世种丰度大致对应于高的中值粒径和平均粒径, 以及大约氧同位素5期以来增加的有机碳含量, 表明此期间贸易风增强, 搬运的陆源颗粒增大, 北赤道洋流加强, 导致上升流增强, 表层水生产力提高, 同时, 南极底层流的活动也加强.大约在氧同位素10、8.3~6和2期, 低的放射虫总丰度、第四纪常见种丰度和始新世-渐新世种丰度大致对应于减小的中值粒径和平均粒径, 反映此期间贸易风减弱, 搬运的陆源颗粒减小, 北赤道洋流减弱, 导致上升流消失, 表层水生产力降低, 同时, 南极底层流的活动也减弱.
- 放射虫丰度 /
- 表层生产力 /
- 贸易风 /
- 南极底层流 /
- 热带东太平洋 /
- 晚第四纪
Abstract: Radiolarians studied in Core 8001 of the northeast equatorial Pacific show that the first appearance datum(FAD) of Buccinospharea invaginata and Collosphaera tuberosa occur at depths of 22 and 45 cm respectively, and their FAD ages are 0.21 and 0.42 Ma. The stratigraphic framework of this core is established by the combination of the two FAD ages with the SPECMAP isotopic records in deep-sea sediments. Variations of radiolarian abundance, biogenic opal, organic carbon and grain size in this core indicate that the high radiolarian abundance during the MIS 11, 9 -8.4, 5 -3 and 1, with the high abundance of Quaternary and Eocene-Oligocene species, corresponds to the high median and mean grain sizes. Organic carbon increased during the MIS 5, reflecting the enhancing trade wind, which brought on increasing grain size in conveyed terrestrial detritus. The intensive north equatorial current led to the upwelling becoming stronger and high surface productivity, together with enhanced activity in the Antarctic bottom water. The low radiolarian abundance during the MIS 10, 8.3 -6 and 2, coinciding with the low abundances of the Quaternary and Eocene-Oligocene species, corresponds to low median and mean grain sizes. This implies the weak trade wind caused the decreasing grain size of the transported terrestrial detritus and the slack north equatorial current resulted in the weak upwelling and low surface productivity, coming along the weak activity of the Antarctic bottom water.
- radiolarian abundance /
- surface productivity /
- trade wind /
- Antarctic bottom water /
- tropical Eastern Pacific /
- Late Quaternary

HTML全文

图 1 热带东太平洋中国多金属结核开辟区区域略图和8001柱状样位置(倪建宇等, 2001)

Fig. 1. Sketch map of the China pioneer area for multimetallic nodules in the tropical Eastern Pacific Ocean and location of Core 8001

下载: 全尺寸图片幻灯片

图 2 热带东太平洋8001柱状样中放射虫丰度的变化与SPECMAP氧同位素记录的对比

Fig. 2. Correlation of the radiolarian abundances in Core 8001 of the tropical Eastern Pacific Ocean with the SPECMAP oxygen isotopic records in deep-sea sediments

下载: 全尺寸图片幻灯片

图 3 赤道太平洋贸易风强度图和8001柱状样的位置(据Molina-Cruz, (1977)重绘)

Fig. 3. Annual mean trade-wind field in the equatorial Pacific Ocean and location of Core 8001

下载: 全尺寸图片幻灯片

图 4 热带东太平洋8001柱状样中的有机碳和蛋白石含量的变化与SPECMAP氧同位素记录的对比

Fig. 4. Correlation of the organic carbon and opal contents in Core 8001 of the tropical Eastern Pacific Ocean with SPECMAP oxygen isotopic records in deep-sea sediments

下载: 全尺寸图片幻灯片

图 5 热带东太平洋8001柱状样中的粒度资料与SPECMAP氧同位素记录的对比

Fig. 5. Correlation of the grain size datum in Core 8001 of the tropical Eastern Pacific Ocean with SPECMAP oxygen isotopic records in deep-sea sediments

下载: 全尺寸图片幻灯片

参考文献(43)

[1]	Abelmann, A., Brathauer, U., Gersode, R., et al., 1999. Radiolarian-based transfer function for the estimation of sea-surface temperatures in the Southern Ocean(Atlantic sector). Paleoceanography, 14(3): 410 -421. doi: 10.1029/1998PA900024
[2]	Caulet, J.P., Venec-Peyre, M.T., Vergnaud-Grazzini, C., et al., 1992. Variation of South Somalian upwelling during the last 160 ka: Radiolarian and foraminifera records in core MD 85674. In: Summerhayes, C.P., Prell, W.L., Emeis, K.C., eds., Upwelling systems: Evolution since the Early Miocene. Geological Society Special Publication, 64: 379 -389.
[3]	Han, J.X., Li, X.J., Cui, J.Q., et al., 1997. Relationship between paleoceanographic environment and polymetallic nodules formation. China University of Geosciences Press, Wuhan, 1 -142(in Chinese).
[4]	Imbrie, J., Hays, J., Martinson, D., et al., 1984. The orbital theory of Pleistocene climate: Support from a revised chronology of the marine δ¹⁸ O record. In: Berger, A., Imbrie, J., Hays, J., et al., eds., Milankovitch and climate, understanding the response to orbital forcing, Part 1. Reidel, Norwell, MA, 269 -305.
[5]	Janecek, T.R., Rea, D.V., 1985. Quaternary fluctuations in the northern hemisphere trade winds and westerlies. Quaternary Research, 24: 150 -163. doi: 10.1016/0033-5894(85)90002-X
[6]	Jin, X. L., 1997. Marine geology and deposit features for mineral belt of polymetallic nodules in eastern Pacific Ocean. Ocean Publishing House, Beijing, 1 -443(in Chinese).
[7]	Johnson, T.C., 1974. The dissolution of siliceous microfossils in surface sediments of the eastern tropical Pacific. Deep Sea Research, 21: 851 -864. https://www.sciencedirect.com/science/article/pii/0011747174900047
[8]	Johnson, T.C., 1976. Controls on the preservation of biogenic opal in sediments of the eastern tropical Pacific. Science, 192: 887 -890. doi: 10.1126/science.192.4242.887
[9]	Kawahata, H., Suzuki, A., Ahagon, N., 1998. Biogenic sediments in the West Caroline basin, the western equatorial Pacific during the last 330 000 years. Marine Geology, 149: 155 -176. doi: 10.1016/S0025-3227(98)00039-5
[10]	Kennington, K., Haslett, S.K., Funnell, B.M., 1999. Offshore transport of neritic diatoms as indicators of surface current and trade wind strength in the PlioPleistocene eastern equatorial Pacific. Palaeogeography, Palaeoclimatology, Palaeoecology, 149: 171 - 181. doi: 10.1016/S0031-0182(98)00199-0
[11]	Liu, J.H., Shi, X.F., Chen, L.R., et al., 2004. REEs and ε_Nd of clay composition in surface sediments of the East Pacific Ocean: Evidence of clay. Science in China(Series D), 34(6): 552 -561(in Chinese).
[12]	Marine Geology Department of Tongji University, 1989. Introduction to paleoceanography. Tongji University Press, Shanghai, 1 -316(in Chinese).
[13]	Molina-Cruz, A., 1977. The relation of the southern trade winds to upwelling processes during the last 75 000 years. Quaternary Research, 8: 324 -338. doi: 10.1016/0033-5894(77)90075-8
[14]	Mortlock, R.A., Froelich, P.N., 1989. A simple method for the rapid determination of biogenic opal in the pelagic marine sediments. Deep Sea Research, 36(9): 1415 - 1426. doi: 10.1016/0198-0149(89)90092-7
[15]	Ni, J.Y., Zhou, H.Y., Pan, J.M., et al., 2001. Geochemical characteristics of sediments from the China pioneer area, equatorial northeast Pacific Ocean. Acta Oceanologica Sinica, 23(6): 94 -100(in Chinese with English abstract).
[16]	Ni J.Y., Zhou, H.Y., Pan, J.M., et al., 2002. Geochemistry of trace elements in sediments from the China pioneer area, equatorial northeast Pacific Ocean. Geochimica, 31 (1): 71 -77(in Chinese with English abstract).
[17]	Pye, K., 1987a. Mechanisms of fine-particle formation. In: Pye, K., ed., Aeolian dust and dust deposits. Cambridge University Press, Cambridge, 10 -28.
[18]	Pye, K., 1987b. Dust deposition in the oceans. In: Pye, K., ed., Aeolian dust and dust deposits. Cambridge University Press, Cambridge, 171 -197.
[19]	Qian, J.C., 1996. Relationship between the hiatus and polymetallic nodules in the CC area of the East Pacific Ocean. In: Shen, H. T., Qian, J. C., eds., Studies of polymetallic nodules in the China pioneer area, equatorial northeast Pacific Ocean. Ocean Publishing House, Beijing, 16 -22(in Chinese).
[20]	Rea, D. K., 1990. Aspects of atmospheric circulation: The Late Pleistocene(0 -950 000 yr)record of eolian deposition in the Pacific Ocean. Palaeogeography, Palaeoclimatology, Palaeoecology, 78: 217 -227. doi: 10.1016/0031-0182(90)90215-S
[21]	Romine, K., Moore, T.C. Jr., 1981. Radiolarian assemblage distributions and paleoceanography of the eastern Equatorial Pacific Ocean during the last 127 000 years. Palaeogeography, Palaeoclimatology, Palaeoecology, 35: 281 -314. doi: 10.1016/0031-0182(81)90100-0
[22]	Sanfilippo, A., Nigrini, C., 1998. Code numbers for Cenozoic low latitude radiolarian biostratigraphic zones and GPTS conversion tables. Mar. Micropaleontol. , 33: 109 -156. https://www.sciencedirect.com/science/article/abs/pii/S0377839897000303
[23]	Sanfilippo, A., Westberg-Smith, M.J., Riedel, W.R., 1985. Cenozoic radiolaria. In: Bolli, H. M., Saunders, J. B., Perch-Nielsen, K., eds., Plankton stratigraphy. Cambridge University Press, Cambridge, 631 -712.
[24]	Shen, H.T., Chen, J.L., Qian, J.C., 1996. Polymetallic nodules and their forming environments in the China pioneer area, equatorial northeast Pacific Ocean. In: Shen, H.T., Qian, J.C., eds., Studies of polymetallic nodules in the China pioneer area, equatorial northeast Pacific Ocean. Ocean Publishing House, Beijing, 16 -22(in Chinese).
[25]	Wang, R.J., Clemens, S., Huang, B., et al., 2003. Late Quaternary paleoceanographic changes in the northern South China Sea(ODP Site 1146): Radiolarian evidence. Journal of Quaternary Science, 18(8): 745 -756. https://www.researchgate.net/publication/229793752_Quaternary_palaeoceanograpic_changes_in_the_northern_South_China_Sea_ODP_Site_1146_Radiolarian_evidence
[26]	Wang, R. J., 2000. Low radiolarian abundance events and their paleoceanographic implications during the Pleistocene in the South China Sea. Marine Geology and Quaternary Geology, 20(4): 75 -80(in Chinese with English abstract).
[27]	Wang, R.J., Abelmann, A., 1999. Pleistocene radiolarian biostratigraphy in the South China Sea. Science in China (Series D), 42(5): 536 -543. doi: 10.1007/BF02875248
[28]	Xu, D.Y., 1999. Paleoceanographic events and minerogenesis in the Pacific Ocean. In: Xu, D.Y., ed., Marine geology and paleoceanography, volume 13. Geological Publishing House, Beijing, 101 -113(in Chinese).
[29]	Xu, D.Y., Chen, Z.T., Meng, X.Y., 1994a. A study of Late Cenozoic paleoceanographic environment and events of the central Pacific Ocean. Geological Publishing House, Beijing, 1 -176(in Chinese).
[30]	Xu, D.Y., Yao, D., Liang, H.F., et al., 1994b. Paleoceanographic environment of the forming ploymetallic nodules. Geological Publishing House, Beijing, 1 -111(in Chinese).
[31]	韩建修, 李学杰, 崔建秋, 等, 1997. 古海洋环境与多金属结核形成的关系. 武汉: 中国地质大学出版社, 1 -142.
[32]	金翔龙, 1997. 东太平洋多金属结核矿带海洋地质与矿床特征. 北京: 海洋出版社, 1 -443.
[33]	刘季花, 石学法, 陈丽蓉, 等, 2004. 东太平洋沉积物中粘土组分的REEs和ε_Nd: 粘土来源的证据. 中国科学(D辑), 34(6): 552 -561. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200406007.htm
[34]	同济大学海洋地质系, 1989. 古海洋学概论. 上海: 同济大学出版社, 1 -316.
[35]	倪建宇, 周怀阳, 潘建明, 等, 2001. 中国多金属结核开辟区沉积物地球化学特征. 海洋学报, 23(6): 94 -100. https://www.cnki.com.cn/Article/CJFDTOTAL-SEAC200106009.htm
[36]	倪建宇, 周怀阳, 潘建明, 等, 2002. 中国多金属结核开辟区沉积物中微量元素地球化学特征. 地球化学, 31(1): 71 - 77. https://www.cnki.com.cn/Article/CJFDTOTAL-DQHX200201010.htm
[37]	钱江初, 1996. 东太平洋CC区的沉积间断与多金属结核的关系. 见: 沈华悌, 钱江初, 东太平洋多金属结核研究论文集. 北京: 海洋出版社, 33 -38.
[38]	沈华悌, 陈建林, 钱江初, 1996. 东太平洋海盆勘查区多金属结核及其形成环境. 见: 沈华悌, 钱江初, 东太平洋多金属结核研究论文集. 北京: 海洋出版社, 16 -22.
[39]	王汝建, 2000. 南沙海区更新世以来的放射虫丰度低值事件及其古海洋学意义. 海洋地质与第四纪地质, 20(4): 75 -80. https://www.cnki.com.cn/Article/CJFDTOTAL-HYDZ200004015.htm
[40]	王汝建, Abelmann, A., 1999. 南海更新世的放射虫生物地层学. 中国科学(D辑), 29(2): 137 -143. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK199902005.htm
[41]	许东禹, 1999. 太平洋古海洋事件和成矿作用. 见: 许东禹主编, 第30届国际地质大会论文集, 第13卷, 海洋地质学, 古海洋学. 北京: 地质出版社, 101 -113.
[42]	许东禹, 陈宗团, 孟祥营, 1994a. 太平洋中部晚新生代古海洋环境及事件. 北京: 地质出版社, 1 -176.
[43]	许东禹, 姚德, 梁宏锋, 等, 1994b. 多金属结核形成的古海洋环境. 北京: 地质出版社, 1 -111.