Grain-size Variations of Terrigenous Sediment Sequences in the South Okinawa Trough

LI Jun; GAO Shu; SUN You-bin; ZENG Zhi-gang

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Article Navigation > Acta Sedimentologica Sinica > 2003 > 21(3): 461-466

LI Jun, GAO Shu, SUN You-bin, ZENG Zhi-gang. Grain-size Variations of Terrigenous Sediment Sequences in the South Okinawa Trough[J]. Acta Sedimentologica Sinica, 2003, 21(3): 461-466.

Citation:

LI Jun, GAO Shu, SUN You-bin, ZENG Zhi-gang. Grain-size Variations of Terrigenous Sediment Sequences in the South Okinawa Trough[J]. Acta Sedimentologica Sinica, 2003, 21(3): 461-466.

Grain-size Variations of Terrigenous Sediment Sequences in the South Okinawa Trough

1.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao Shandong 266071;
2.
Key Laboratory of Coast and Island Development, MOE, Nanjing University, Nanj ing 210093;
3.
Graduate School of Chinese Academy of Sciences, Beijing 100039

Received Date: 2002-06-05
Rev Recd Date: 2002-11-29
Publish Date: 2003-09-10

Abstract

Terrigenous detritus samples extracted from a piston core A23, located in the so uthern Okinawa Trough, were analyzed in terms of the grain-size characteristics. The results show that the terrigenous sequences in the core can be divided int o two parts on the basis of the variations in the grain-size parameters. The l ower sequence is characterized by constant grain-size parameters; whilst the up per part is controlled by turbidite layers with a thickness of about 2～20 cm, which caused very large variations of the parameters. The large variation of gra in-size composition and distribution of the turbidite sequences significantly disturbed the normal formation of the sediment sequences. The gain-size distri bution modes and parameters of a turbidite bed were analyzed in detail, which sh ow very regular variation in the bed. According to all grain-size character istics of the core, the depositional environment and sediment dynamics is very c omplex and the main mechanism of the transportation of the terrigenous material from East China Sea Shelf to the trough is in the form of bedload through canyo ns. Furthermore, pretreatment to the marine sediments is important, which enable s us to compare the grain-size characteristics between terrigenous detritus and the bulk grain-size.
- terrigenous sequences,
- grain-size parameters and distribution,
- turbidite sediment,
- Okinawa Trough

References

[1]	Stuut J-B W, Prins M A, Schneider R R, et al. A 300-ka record of aridity and wind strength in southwestern Africa: inferences from grain-size distribution of sediments on Walvis Ridge, SE Atlantic[J]. Marine Geology, 2002, 180: 221～233
[2]	Prins M A, Postma G, Weltje G J. Controls on terrigenous sediment supply to the Arabian Sea during the late Quaternary: the Makran continental slope[J]. Marine Geology, 2000, 169: 351～371
[3]	Gingle F X, Schmieder F, Dobeneck T, Petschick, et al. Terrigenous flux in the Rio Grande Rise area during the past 1500 ka: Evidence of deepwater advection or rapid response to continental rainfall patterns?[J]. Paleoceanography, 1999, 14(1): 84～95
[4]	秦蕴珊等. 东海地质[M]. 北京:科学出版社,1987 [ Qin Y S, et al. Geology of East China Sea[M]. Beijing: Science Press, 1987]
[5]	潘志良,石斯器. 冲绳海槽沉积物及其沉积作用的研究[J]. 海洋地质与第四纪地质. 1986,6(1):17～29 [Pan Z L, Si S Q. Study on sediments and sedimentation in Okinawa Trough[J]. Marine Geology and Quaternary Geology, 1986,6: 17～29]
[6]	郑铁民,徐善民,徐志明. 冲绳海槽表层沉积物沉积特征的初步研究[J]. 海洋与湖沼. 1986, 20(2): 113～121[Zheng T M, Xu S M, Xu Z M. Characteristics of the surface sediments in Okinawa Trough[J].Oceanologia et Limnologia Acta,1986,20(2):113～121]
[7]	张明书. 冲绳海槽沉积物分类和层序划分的初步意见[J]. 海洋地质与第四纪地质. 1986, 6(2):31～40[ Zhang M.S. The preliminary suggestion to the sediment classification and strata sequence in Okinawa Trough[J]. Marine Geology and Quaternary Geology, 1986,6 (2):31～40]
[8]	袁迎如,陈冠球,杨文达等. 冲绳海槽沉积物的特征[J]. 海洋学报. 1987, 9(3): 353～360 [Yuan Y R, Chen G Q, Yang WD, et al. The characteristics of Sediments in Okinawa Trough[J]. Acta Oceanologica Sinica, 1987, 9(3): 353～360]
[9]	袁迎如. 冲绳海槽沉积物的粒度[J]. 东海海洋,1987, 4(3):, 42～49[Yuan Y.R. Grain-size of the sediments in Okinawa Tough[J]. Donghai Marine Science, 1987, 4(3): 42～49]
[10]	Katayama H. Transport processes of terrigenous materials to the Okinawa Trough based on chemical and mineralogical analysis of settling particles [A]. In: Hu D, Tsunogai S, eds. Margin flux in the East China Sea[C]. Beijing: China Ocean Press, 1999. 42～48
[11]	Hu D X. The role of vertical circulation in sediment dynamics[A]. In: Ye D Z, Lin H, eds. China Contribution to Global Changes Studies [C]. Beijing: China Science Press, 1995.168～170
[12]	Yanagi T S, Takahashi and Hoshika A. Seasonal variation in the transport of suspended matter in the East China Sea [J]. Journal of Oceanography, 1996, 52:539～552
[13]	Peng M C, Hu D X. Outflow of suspended materials from Changjiang River Mouth [J].Chin. J. Oceanol. Limnol., 1997,15:258～263
[14]	Rea D K, Janecek T R. Mass accumulation rates of the non-authigenic inorganic crystalline (eolian) components from the western Mid-Pacific Mountains [A].In: Thiede, et al, eds. Deep Sea Drilling Project Site 463, Initial Report of Deep Sea Drill Project [R]. 1981, 62: 653～659
[15]	孙有斌,高抒,鹿化煜. 前处理方法对北黄海沉积物粒度的影响[J]. 海洋与湖沼, 2001, 32(6): 665～671[ Sun Y B, Gao S, Lu H Y. Influence of different pretreatment procedures on the particle-size distribution of surfacial sediments in the Northern Yellow Sea.[J]. Oceanologica et Limnologica Sinica, 2001, 32(6): 665～671]
[16]	鹿化煜, 苗晓东, 孙有斌. 前处理步骤与方法对风成红粘土粒度测量的影响[J].海洋地质与第四纪地质,2002, 22(3): 129～135[Lu H Y, Miao X D, Sun Y B. Pretreatment methods and their influences on grain-size measurement of aeolian "Red Clay" in North China[J]. Marine Geology and Quaternary Geology, 2002, 22(3): 129～135]
[17]	苏纪兰,秦蕴珊. 当代海洋科学学科前沿 [C]. 北京:学苑出版社, 2000. 190～191[Su J L, Qin Y S. Frontiers of contemporary marine science[C]. Beijing: Xueyuan Press, 2000. 190～191]
[18]	金性春等. 大洋钻探与中国地球科学[M]. 上海:同济大学出版社, 1995 [Jin X C, et al. Ocean drilling program and earth sciences in China [M]. Shanghai: Tongji University Press, 1995]
[19]	高抒,贾建军. 冲绳海槽中北部及邻近陆坡近表层物质的粒度特征[A]. 见:高抒,李家彪主编. 中国边缘海的形成演化[C]. 北京:海洋出版社,2002. 125～139 [ Gao S, Jia J J. The grain-size charatercistics of the near surface sediment in the Mid-North Okinawa Trough and its vicinities[A]. In: Gao S, Li J B, eds. The formation and evolution of Chinese Marginal Seas[C]. Beijing: Ocean Press, 2002. 125～139]
[20]	蒋富清,李安春, 李铁钢. 冲绳海槽南部柱状沉积地球化学特征和古环境意义[J].海洋地质与第四纪地质, 2002, 22(3): 11～17[Jiang F Q, Li A C, Li T G. Geochemical characteristics for core sediments of the southern Okinawa Trough and its paleoclimatic implication[J]. Marine Geology and Quaternary Geology, 2002, 22(3): 11～17]
[21]	Sibuet J C, Deffontaines B, Hsu S K, Thareau N, Le Formal, et al. Okinawa Trough backarc basin: early tectonic and magmatic evolution[J]. Journal of Geophysical Research, 1998, 103: 30245～30267
[22]	李巍然,杨作升,王琦等. 冲绳海槽陆源碎屑峡谷通道搬运与海底扇沉积[J]. 海洋与湖沼, 2001,32(4): 371～380 [ Li W Z., Yang Z S, Wang Q, et al. Terrigenous transportation through canyon and sedimentation of submarine fan in the Okinawa Trough[J]. Oceanologia et Limnologia Acta, 2001,32(4):371～380]
[23]	谢钦春, 叶银灿, 陆炳文. 东海陆架坡折地形和沉积作用过程[J]. 海洋学报, 1984, 6: 61～71 [Xie Q C, Ye Y C, Lu B W. The topography of slop break in the East China Sea Shelf and sedimentation process [J]. Acta Oceanica Sinica, 1984, 6: 61～71]
[24]	Salaheldin T M, Imran J, Chaudhry M H, Reed C. Role of fine-grained sediment in turbidity current flow dynamics and resulting deposits[J]. Marine Geology, 2000, 171: 21～38
[25]	Chung Y C, Hung G W. Particulate fluxes and transports on the slope between the southern East China Sea and the South Okinawa Trough [J]. Continental Shelf Research, 2000, 20: 571～597
[26]	Yanagi T, Morimoto A, Ichikawa K. Seasonal variation in surface circulation of the East China Sea and the Yellow Sea derived from satellite altimetric data [J]. Continental Shelf Research, 1997,17(6):655～664
[27]	Salibury M H, Shinohara M, Richter C, et al. Shipboard Scientific Party Chapter 5, Site 1202, in Proceeding of the Ocean Drilling program, Initial Reports[R]. 2002.195

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Grain-size Variations of Terrigenous Sediment Sequences in the South Okinawa Trough

1. Institute of Oceanology, Chinese Academy of Sciences, Qingdao Shandong 266071;

2. Key Laboratory of Coast and Island Development, MOE, Nanjing University, Nanj ing 210093;

3. Graduate School of Chinese Academy of Sciences, Beijing 100039

Received Date: 2002-06-05

Rev Recd Date: 2002-11-29

Publish Date: 2003-09-10

Key words:

terrigenous sequences /
grain-size parameters and distribution /
turbidite sediment /
Okinawa Trough

Abstract: Terrigenous detritus samples extracted from a piston core A23, located in the so uthern Okinawa Trough, were analyzed in terms of the grain-size characteristics. The results show that the terrigenous sequences in the core can be divided int o two parts on the basis of the variations in the grain-size parameters. The l ower sequence is characterized by constant grain-size parameters; whilst the up per part is controlled by turbidite layers with a thickness of about 2～20 cm, which caused very large variations of the parameters. The large variation of gra in-size composition and distribution of the turbidite sequences significantly disturbed the normal formation of the sediment sequences. The gain-size distri bution modes and parameters of a turbidite bed were analyzed in detail, which sh ow very regular variation in the bed. According to all grain-size character istics of the core, the depositional environment and sediment dynamics is very c omplex and the main mechanism of the transportation of the terrigenous material from East China Sea Shelf to the trough is in the form of bedload through canyo ns. Furthermore, pretreatment to the marine sediments is important, which enable s us to compare the grain-size characteristics between terrigenous detritus and the bulk grain-size.

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Reference (27)

[1]	Stuut J-B W, Prins M A, Schneider R R, et al. A 300-ka record of aridity and wind strength in southwestern Africa: inferences from grain-size distribution of sediments on Walvis Ridge, SE Atlantic[J]. Marine Geology, 2002, 180: 221～233
[2]	Prins M A, Postma G, Weltje G J. Controls on terrigenous sediment supply to the Arabian Sea during the late Quaternary: the Makran continental slope[J]. Marine Geology, 2000, 169: 351～371
[3]	Gingle F X, Schmieder F, Dobeneck T, Petschick, et al. Terrigenous flux in the Rio Grande Rise area during the past 1500 ka: Evidence of deepwater advection or rapid response to continental rainfall patterns?[J]. Paleoceanography, 1999, 14(1): 84～95
[4]	秦蕴珊等. 东海地质[M]. 北京:科学出版社,1987 [ Qin Y S, et al. Geology of East China Sea[M]. Beijing: Science Press, 1987]
[5]	潘志良,石斯器. 冲绳海槽沉积物及其沉积作用的研究[J]. 海洋地质与第四纪地质. 1986,6(1):17～29 [Pan Z L, Si S Q. Study on sediments and sedimentation in Okinawa Trough[J]. Marine Geology and Quaternary Geology, 1986,6: 17～29]
[6]	郑铁民,徐善民,徐志明. 冲绳海槽表层沉积物沉积特征的初步研究[J]. 海洋与湖沼. 1986, 20(2): 113～121[Zheng T M, Xu S M, Xu Z M. Characteristics of the surface sediments in Okinawa Trough[J].Oceanologia et Limnologia Acta,1986,20(2):113～121]
[7]	张明书. 冲绳海槽沉积物分类和层序划分的初步意见[J]. 海洋地质与第四纪地质. 1986, 6(2):31～40[ Zhang M.S. The preliminary suggestion to the sediment classification and strata sequence in Okinawa Trough[J]. Marine Geology and Quaternary Geology, 1986,6 (2):31～40]
[8]	袁迎如,陈冠球,杨文达等. 冲绳海槽沉积物的特征[J]. 海洋学报. 1987, 9(3): 353～360 [Yuan Y R, Chen G Q, Yang WD, et al. The characteristics of Sediments in Okinawa Trough[J]. Acta Oceanologica Sinica, 1987, 9(3): 353～360]
[9]	袁迎如. 冲绳海槽沉积物的粒度[J]. 东海海洋,1987, 4(3):, 42～49[Yuan Y.R. Grain-size of the sediments in Okinawa Tough[J]. Donghai Marine Science, 1987, 4(3): 42～49]
[10]	Katayama H. Transport processes of terrigenous materials to the Okinawa Trough based on chemical and mineralogical analysis of settling particles [A]. In: Hu D, Tsunogai S, eds. Margin flux in the East China Sea[C]. Beijing: China Ocean Press, 1999. 42～48
[11]	Hu D X. The role of vertical circulation in sediment dynamics[A]. In: Ye D Z, Lin H, eds. China Contribution to Global Changes Studies [C]. Beijing: China Science Press, 1995.168～170
[12]	Yanagi T S, Takahashi and Hoshika A. Seasonal variation in the transport of suspended matter in the East China Sea [J]. Journal of Oceanography, 1996, 52:539～552
[13]	Peng M C, Hu D X. Outflow of suspended materials from Changjiang River Mouth [J].Chin. J. Oceanol. Limnol., 1997,15:258～263
[14]	Rea D K, Janecek T R. Mass accumulation rates of the non-authigenic inorganic crystalline (eolian) components from the western Mid-Pacific Mountains [A].In: Thiede, et al, eds. Deep Sea Drilling Project Site 463, Initial Report of Deep Sea Drill Project [R]. 1981, 62: 653～659
[15]	孙有斌,高抒,鹿化煜. 前处理方法对北黄海沉积物粒度的影响[J]. 海洋与湖沼, 2001, 32(6): 665～671[ Sun Y B, Gao S, Lu H Y. Influence of different pretreatment procedures on the particle-size distribution of surfacial sediments in the Northern Yellow Sea.[J]. Oceanologica et Limnologica Sinica, 2001, 32(6): 665～671]
[16]	鹿化煜, 苗晓东, 孙有斌. 前处理步骤与方法对风成红粘土粒度测量的影响[J].海洋地质与第四纪地质,2002, 22(3): 129～135[Lu H Y, Miao X D, Sun Y B. Pretreatment methods and their influences on grain-size measurement of aeolian "Red Clay" in North China[J]. Marine Geology and Quaternary Geology, 2002, 22(3): 129～135]
[17]	苏纪兰,秦蕴珊. 当代海洋科学学科前沿 [C]. 北京:学苑出版社, 2000. 190～191[Su J L, Qin Y S. Frontiers of contemporary marine science[C]. Beijing: Xueyuan Press, 2000. 190～191]
[18]	金性春等. 大洋钻探与中国地球科学[M]. 上海:同济大学出版社, 1995 [Jin X C, et al. Ocean drilling program and earth sciences in China [M]. Shanghai: Tongji University Press, 1995]
[19]	高抒,贾建军. 冲绳海槽中北部及邻近陆坡近表层物质的粒度特征[A]. 见:高抒,李家彪主编. 中国边缘海的形成演化[C]. 北京:海洋出版社,2002. 125～139 [ Gao S, Jia J J. The grain-size charatercistics of the near surface sediment in the Mid-North Okinawa Trough and its vicinities[A]. In: Gao S, Li J B, eds. The formation and evolution of Chinese Marginal Seas[C]. Beijing: Ocean Press, 2002. 125～139]
[20]	蒋富清,李安春, 李铁钢. 冲绳海槽南部柱状沉积地球化学特征和古环境意义[J].海洋地质与第四纪地质, 2002, 22(3): 11～17[Jiang F Q, Li A C, Li T G. Geochemical characteristics for core sediments of the southern Okinawa Trough and its paleoclimatic implication[J]. Marine Geology and Quaternary Geology, 2002, 22(3): 11～17]
[21]	Sibuet J C, Deffontaines B, Hsu S K, Thareau N, Le Formal, et al. Okinawa Trough backarc basin: early tectonic and magmatic evolution[J]. Journal of Geophysical Research, 1998, 103: 30245～30267
[22]	李巍然,杨作升,王琦等. 冲绳海槽陆源碎屑峡谷通道搬运与海底扇沉积[J]. 海洋与湖沼, 2001,32(4): 371～380 [ Li W Z., Yang Z S, Wang Q, et al. Terrigenous transportation through canyon and sedimentation of submarine fan in the Okinawa Trough[J]. Oceanologia et Limnologia Acta, 2001,32(4):371～380]
[23]	谢钦春, 叶银灿, 陆炳文. 东海陆架坡折地形和沉积作用过程[J]. 海洋学报, 1984, 6: 61～71 [Xie Q C, Ye Y C, Lu B W. The topography of slop break in the East China Sea Shelf and sedimentation process [J]. Acta Oceanica Sinica, 1984, 6: 61～71]
[24]	Salaheldin T M, Imran J, Chaudhry M H, Reed C. Role of fine-grained sediment in turbidity current flow dynamics and resulting deposits[J]. Marine Geology, 2000, 171: 21～38
[25]	Chung Y C, Hung G W. Particulate fluxes and transports on the slope between the southern East China Sea and the South Okinawa Trough [J]. Continental Shelf Research, 2000, 20: 571～597
[26]	Yanagi T, Morimoto A, Ichikawa K. Seasonal variation in surface circulation of the East China Sea and the Yellow Sea derived from satellite altimetric data [J]. Continental Shelf Research, 1997,17(6):655～664
[27]	Salibury M H, Shinohara M, Richter C, et al. Shipboard Scientific Party Chapter 5, Site 1202, in Proceeding of the Ocean Drilling program, Initial Reports[R]. 2002.195

Grain-size Variations of Terrigenous Sediment Sequences in the South Okinawa Trough

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