南海北部191柱状沉积物主元素特征及其古环境意义

赵宏樵; 韩喜彬; 陈荣华; 初凤友; 高水土

南海北部191柱状沉积物主元素特征及其古环境意义

国家海洋局, 第二海洋研究所, 国家海洋局海底科学重点实验室, 浙江, 杭州, 310012

基金项目: 国家重点基础研究发展规划资助项目(G20000467)

计量
- 文章访问数: 909
- HTML全文浏览量: 17
- PDF下载量: 1310
- 被引次数: 0
出版历程
- 收稿日期: 2007-03-12
- 修回日期: 2008-09-22

Charicteristics of main elements and their palaeoenvironment significance of Core 191 in the northern South China Sea

Laboratory of Submarine Geosciences of State Oceanic Administration, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

摘要

摘要: 应用XRF法对南海北部陆坡191柱状沉积物中主元素进行分析,结果显示,全柱沉积物中SiO₂含量最高,其次是CaCO₃,Al₂O₃和CaO。在垂向分布上CaCO₃和CaO含量分布基本一致,SiO₂,Al₂O₃,Fe₂O₃,K₂O,MgO含量变化相似。结合AMS碳-14测年,可将191柱状样划分为5个地球化学层,主元素和MgO与Al₂O₃含量比值在垂向上的旋回变化反映了南海北部氧同位素3期以来末次冰盛期、冰后期、晚冰期的气候变化、海平面波动及陆源物质供应的变化,并对Heinrich事件、格陵兰高频气候振荡(D/O)旋回、新仙女木事件以及普林斜氏虫低值事件等全球性短周期气候事件有很好的对应关系,但受区域影响,在时间上有所滞后。氧同位素3期以来的沉积速率并未显示出南海普遍存在的间冰期比冰期、暖期比冷期的沉积速率低的规律,而是逐渐减小的,这可能是氧同位素3期频繁的冷热干湿气候振荡导致岩石易于风化破碎受侵蚀后被洪水搬运的缘故。
- 南海 /
- 主元素 /
- 古环境 /
- 短周期气候变化 /
- 沉积速率
Abstract: The main elements of Core 191 are analyzed using the method of XRF in the northern South China Sea.The results show that the main element of the highest content is SiO₂, the next is CaCO₃, Al₂O₃ and CaO.In the vertical distribution the content of CaCO₃ is coincident with that of CaO, and the content of SiO₂ is similar to that of Al₂O₃, Fe₂O₃, K₂O and MgO.Combined with the dating of AMS(carbon-14), five geochemistry layers are divided, this is indicated that the changing of main elements and the content ratio of MgO to Al₂O₃ along the core have reflected the evolution of climate, sea level and terrigenous mater supply since oxygenisotope Stage 3 in the northern South China Sea.And the changing has good corre-spondence to short period global climate change such as Heinrich event, Dansgaerd-Oeschger gyration, Younger Dry as event and Pulleniatina obliquiloculata event, just little late to Greenland Island ice core because of regional response.Since oxygenisotope Stage 3, the deposited rate in the study area has dropped, not as the common result that the deposited rate in interglacial stage or warm period is higer than that in glacial stage or cold period in orther areas of the South China Sea.The reason is that rocks are easier to weathering and to eroding in the frequent climate oscillation of heat and cold or dryness and wetness in this stage.
- South China Sea /
- main elements /
- paleoenvironment /
- short period global climate change /
- deposited rate

HTML全文

参考文献(50)

丁一汇,李崇银.南海夏季风爆发和演变及其与海洋的相互作用[M].北京:气象出版社,1999:112-116.

赵泉鸿,汪品先.南海第四纪古海洋学研究进展[J].第四纪研究,1999(6):481-501.

刘昭蜀,赵焕庭,范时清,等.南海地质[M].北京:科学出版社,2002.

汪品先,闵秋宝,卞云华,等.十三万年来南海北部陆坡的浮游有孔虫及其古海洋意义[J].地质学报,1986,60(3):215-225.

王律江,SARNTHEIN M.南海北部陆坡近四万年的高分辨率古海洋学记录[J].第四纪研究,1999(1):27-31.

赵泉鸿,翦知湣,王吉良,等.南海北部晚新生代氧同位素地层学[J].中国科学(D辑),2001,31(10):800-807.

汪品先,翦知湣,赵泉鸿,等.南海演变与季风历史的深海证据[J].科学通报,2003,48 (21):2228-2239.

WANG Gui-hua,CHEN Da-ke,SU Ji-lan.Generation and life cycle of the dipole in the South China Sea summer circulation[J].Journal of Geophysical Research-Oceans,111(C6):C06002.

ZHANG Yi-ge,JI Jun-feng,BALSAM William L,et al.High resolution hematite and goethite records from ODP 1143,South China Sea:Co-evolution of monsoonal precipitation and El Nino over the past 600 000 years[J].Earth and Planetary Science Letters.2007,264(1-2):136-150.

BOULAY S,COLIN C,TRENTESAUX A,et al.Mineralogy and sedimentology of Pleistocene sediment in the South China Sea (ODP Site 1144)[G]∥PRELL W L,WANG P,BLUM P,et al.Proceedings of the Ocean Drilling Program(Scientific Results)2003,184:1-21[EB/OL].(2006-07-14)[2007-02-07] Http://www.odp.tamu.edu/publications/184_SR.

颜文,古森昌,陈列忠,等.南海97-37柱样的主元素特征及其潜在的古环境指示作用[J].热带海洋学报,2002,21(2):75-83.

SOUTHON J,KASHGARIAN M,FONTUGNE M,et al.Marine reservoir corrections for the Indian Ocean and Southeast Asia[J].Radiocarbon,2002,44:167-180.

STUIVER M,REIMER P J.Extended ¹⁴C data base and revised CALIB 3.0 ¹⁴C age calibration program[J].Radiocarbon,1993,35:215-230.

STUIVER M,REIMER P J,REIMER R W.CALIB 5.0[EB/OL].(2006-07-22)[2007-02-10].http://calib.qub.ac.uk.

MARTINSON D G,PISIAS N G,HAYS J D,et al.Age dating and orbital theory of the ice ages:development of a high-resolution 0-300 000-year chronostratigraphy[J].Quaternary Research,1987,27:1-29.

陈木宏,蔡慧海,涂霞,等.南沙群岛及临近海区晚第四纪的微体生物与环境[M].北京:海洋出版社,1996:121-201.

MIX A C,BARD E,SCHNEIDER R.Environmental processes of the ice age:land,oceans,glaciers (EPILOG)[J].Quaternary Science Reviews,2001,20:627-657.

黄玥,冉莉华,蒋辉.南海北部陆坡晚更新世末期硅藻及其古环境意义[J].海洋地质与第四纪地质,2006,26(4):7-13.

温孝胜,彭子成,赵焕庭.中国全新世气候演变研究的进展[J].地球科学进展,1999,14(3):292-298.

吴江滢,汪永进,孔兴功.贵州白骨洞石笋记录的全新世季风气候演化与突变[J].海洋地质与第四纪地质,2006,26(5):55-60.

杨子赓.海洋地质学[M].济南:山东省教育出版社,2004:222-246.

庄振业.第四纪环境演变[M].青岛:青岛海洋大学出版社,1999:30-52.

LAMBECK K,CHAPPELL J.Sea level changes through the last glacial cycle[J].Science,2001,292(5517):679-686.

汪品先,卞云华,王律江.深海碳酸盐[M]∥十五万年的南海.上海:同济大学出版社,1995:33-39.

DANSGAARD W,WHITE J W C,JOHNSEN S J.The abrupt termination of the Younger Dryas climate event[J].Nature,1989,339:532-534.

ALLEY,R B,MAROTZKE J,NNRDHAUS W D,et al.Abrupt climate change[J].Science,2003,299(5615):2005-2010.

郑洪波,杨文光,贺娟,等.南海的氧同位素3期[J].第四纪研究,2008,28(1):68-78.

ZHANG P Z,MOLNAR P,DOWNS W.Increased sedimentation rates and grain sizes 2-4 Myr ago due to the influence of climate changes on erosion rates[J].Nature,2001,410:891-897.

魏国彦,李孟扬,段威武,等.南海东北部末次冰期-全新世古海洋学[J].海洋地质与第四纪地质,1999,19(3):19-25.

BOND G C,BROECKER W S,JOHNSEN S,et al.Correlation between climate records from North-Atlantic sediments and Greenland ice[J].Nature,1993,365:143-147.

苍树溪,闫军.西太平洋特定海域古海洋学[M].青岛:青岛海洋大学出版社,1992.

钱建兴.晚第四纪以来南海古海洋学研究[M].北京:科学出版社,1999:79-110.

郑连福,陈文斌.南海海洋沉积作用过程与地球化学研究[M].北京:海洋出版社,1993:109-123.

范维佳,陈荣华,赵泉鸿,等.南海北部191PC柱样沉积物中浮游有孔虫特征及其古环境意义[J].微体古生物学报,2007,24(3):233-241.

WANG L,SARNTHEIN M,ERLENKEUSER H,et al.East Asian monsoon climate during the Late Pleistocene:high-resoulution sediment records from the South China Sea[J].Marine Geology,1999,156:245-284.

DANSGAARD W,JOHNSON S J,CLAUSEN H B,et al.Evidence for general instability of past climate from a 250-kyr ice-core record[J].Nature,1993,364:218-220.

徐明广,马道修,周青威,等.珠江三角洲地区第四纪海平面变化[J].海洋地质与第四纪地质,1986,6(3):93-102.

蓝先洪.珠江三角洲Δ22孔的沉积特征及地层划分[J].148-154.

HEINRICH H.Origin and consequences of cyclic ice rafting in the northeast Atlantic Ocean during the past 130,000 years[J].Quaternary Research,1988,29:142-152.

鲍才旺.珠江口陆架区埋藏古河道与古三角洲[J].海洋地质与第四纪地质,1995,15(2):25-34.

HOLMOS A.Principles of Geology[M].London:Thomas Nelson,1965.

FAIRBANKS R G.A 17,000-year glacio-eustatic sea level record:influence of glacial melting rates on the Younger Dryas event and deep ocean circulation[J].Nature,1989,342:637-647.

FANNING A F,WEAVER A J.Temporal-geographical meltwater influences on the North Atlantic conveyor:implications for the Younger Dryas[J].Paleoceanography,1997,12(2):307-320.

BROEKGE WS,ANDRGE M,WOLFLI W,et al.The chronology of the last deglaciation:implication to the cause of the Younger Dryas event[J].Paleoceanography,1988,3:1-19.

BOND G,SHOWERS W,CHESEBY M,et al.A pervasive millennial-scale cycle in north Atlantic Holocene and glacial climates[J].Science,1997,278:1257-1266.

余华,李巍然,刘振夏,等.冲绳海槽晚更新世以来高分辨率古海洋学研究进展[J].海洋科学,2005,29(1):54-58.

吴中海,赵希涛,吴珍汉,等.西藏纳木错及邻区全新世气候与环境变化的地质记录[J].冰川冻土,2004,26(3):275-283.

施雅风,孔昭宸,王苏民,等.中国全新世大暖期的气候波动与重要事件[J].中国科学(B辑),1992,12:70-78.

钱建兴.氧同位素古海水温度计与古气候[J].海详通报,1984,3(5):86-90.

翦知湣,李保华,PFLAUMANN U,等.西太平洋晚全新世变冷事件[J].中国科学(D辑),1996,26(5):461-466.

施引文献

资源附件(0)

访问统计