南黄海太阳沙西侧潮流脊槽的沉积物分布特征和沉积环境演变
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摘要
对南黄海太阳沙西侧潮流脊槽区进行了底质调查,采用密集站位的振动活塞柱状沉积物采样器取样。根据粒度分析结果,比较精细地研究了厚度约2~3m浅表层沉积物的空间分布特征。结果表明:表层沉积物中,细砂主要分布在潮流脊和岸滩上,其它较细的沉积类型主要分布于潮流槽内,呈显"脊砂槽泥"的沉积-地貌基本特征。同时,沙脊上的表层细砂的分布范围明显与沙脊至海岸的距离有关,除了潮流的影响外,主要与外侧沙脊的消浪作用有关。另外,根据表层沉积物分布的沉积-地貌特征,探讨了潮流脊槽的沉积环境演变。
Sediment survey was carried out in the tidal sand ridges and troughs west of Taiyangsha Ridge in the southern Yellow Sea.Samples were taken with vibrating piston sampler in dense stations.Based on results of grain size analyses,the space distribution characteristics of the surface and shallow sediments with thickness some 2~3 m were elaborately studied.The results show that fine sands of the surface sediments mainly distribute on the tidal sand ridges and coast beach,while other finer sediment types mainly distribute in tidal troughs,appearing a basic feature of sediment-morphology pattern of"ridge-sand and trough-soil".Meanwhile,the distribution scope of the surface fine sands on the tidal sand ridges is clearly related to the distance between the ridges and the coast.Apart from the influence of tidal currents,this is mainly due to the wave energy consumption by the outer ridges.Based on the above characteristics of sediment-morphology pattern,evolution of sedimentary environment was also discussed.
Sediment survey was carried out in the tidal sand ridges and troughs west of Taiyangsha Ridge in the southern Yellow Sea.Samples were taken with vibrating piston sampler in dense stations.Based on results of grain size analyses,the space distribution characteristics of the surface and shallow sediments with thickness some 2~3 m were elaborately studied.The results show that fine sands of the surface sediments mainly distribute on the tidal sand ridges and coast beach,while other finer sediment types mainly distribute in tidal troughs,appearing a basic feature of sediment-morphology pattern of"ridge-sand and trough-soil".Meanwhile,the distribution scope of the surface fine sands on the tidal sand ridges is clearly related to the distance between the ridges and the coast.Apart from the influence of tidal currents,this is mainly due to the wave energy consumption by the outer ridges.Based on the above characteristics of sediment-morphology pattern,evolution of sedimentary environment was also discussed.
引文
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[15]SIMARRO G,GUILLEN J,PUIG P,et al.Sediment dynamics over sand ridges on a tideless mid-outer continental shelf[J].Marine Geology,2015,361:25-40.
[16]DU Jia-bi,WANG Ya-ping.Evolution simulation of radial sand ridges in the southern Yellow sea[J].Journal of Nanjing University:Natural Siences,2014,50(5):636-645.杜家笔,汪亚平.南黄海辐射沙脊群地貌演变的模拟研究[J].南京大学学报:自然科学版,2014,50(5):636-645.
[17]XU Can,GAO Jian-hua,YANG Yang,et al.Suspended sediment transport patterns in the tidal channels in the southwestern Yellow Sea[J].Acta Oceanologica Sinica,2014,36(11):150-162.徐粲,高建华,杨旸,等.南黄海辐射沙脊群潮汐水道的悬浮输送特征[J].海洋学报,2014,36(11):150-162.
[18]NI Wen-fei,WANG Ya-ping,ZOU Xin-qing,et al.Study on the dynamics and stability of the Kushuiyang tidal channel at radial sand ridges in the southern Yellow Sea[J].Marine Science Bulletin,2013,32(6):668-677.倪文斐,汪亚平,邹欣庆,等.南黄海辐射沙脊群苦水洋海域的沉积动力特征及稳定性研究[J].海洋通报,2013,32(6):668-677.
[19]SIMON P N,JAMES R J,SCOTT J C.Impact of tidal energy converter(TEC)arrays on the dynamics of headland sand banks[J].Renewable Energy,2012,37:387-397.
[20]EDWARD J A.Storms,shoreface morphodynamics,sand supply,and the accretion and eronsion of the coastal dune barriers in the southern North Sea[J].Geomorphology,2013,199:8-21.
[2]YANG Chang-ru.On the origin of Jianggang radial sand ridges in Yellow Sea[J].Marine Geology and Quaternary Geology,1985,5(3):35-43.杨长恕.弶港辐射沙脊成因探讨[J].海洋地质与第四纪地质,1985,5(3):35-43.
[3]WANG Kun-shan,JIANG Xiao-li,YE Qing,et al.Distribution and source of heavy minerals in the surface sediment of the tidal sand ridges area in South Yellow Sea[J].Marine Geology and Quaternary Geology,2013,33(5):1-11.王昆山,姜晓黎,叶青,等.南黄海潮流沙脊区表层沉积物重矿物分布及来源[J].海洋地质与第四纪地质,2013,33(5):1-11.
[4]WANG Yi,ZHANG Yong-zhan,ZOU Xin-qing,et al.The sand ridge field of the South Yellow Sea:Origin by river,sea interaction[J].Marine Geology,2012,291(1):132-146.
[5]YING Yong,ZOU Xin-qing,ZHU Da-kui,et al.Core recorded environment of radial tidal sand ridge at Jiangsu offshore,South Yellow Sea,East China[J].Quaternary Sciences,2007,27(5):724-733.殷勇,邹欣庆,朱大奎,等.南黄海辐射沙洲西太阳沙海域钻孔沉积环境分析[J].第四纪研究,2007,27(5):724-733.
[6]ZHANG Jia-qiang,LI Cong-xian,CONG You-zi.Producing condition and evolving progress of the tidal sand bodies in the northern Jiangsu and the southern Huanghai Sea[J].Acta Oceanologica Sinica,1999,21(2):65-74.张家强,李从先,丛友滋.苏北南黄海潮成沙体的发育条件及演变过程[J].海洋学报,1999,21(2):65-74.
[7]ZHAO Juan,FAN Dai-du,LI Cong-xian.Formation of radial tidal sand ridge system and its palaeogeographical significance in coastal zone of northern Jiangsu Province[J].Journal of Palaeogeography,2004,6(1):41-48.赵娟,范代读,李从先.苏北海岸带潮成辐射砂脊群的形成及其古地理意义[J].古地理学报,2004,6(1):41-48.
[8]ZHANG Guang-wei.Formation and evolution of sand ridges in the South Yellow Sea[J].Marine Geology and Quaternary Geology,1991,11(2):25-35.张光威.南黄海陆架沙脊的形成与演变[J].海洋地质与第四纪地质,1991,11(2):25-35.
[9]WANG Rong,ZHANG Yong-zhan,XIA Fei,et al.Grain size distribution and transportation trends of bottom sediments in the sand ridge field of the south Yellow Sea,China[J].Marine Geology and Quaternary Geology,2012,32(6):1-8.王嵘,张永战,夏非,等.南黄海辐射沙脊群海域底质粒度特征及其输运趋势[J].海洋地质与第四纪地质,2012,32(6):1-8.
[10]HOUBOLT J J H C.Recent sediments in the Southern Bight of the North Sea[J].Geologie en Mijnbouw,1968,47(4):245-273.
[11]CASTON V A D.Linear sand banks in the southern North Sea[J].Sedimentology,1972,18(1/2):63-78.
[12]LIU Zhen-xia,XIA Dong-xing.Preliminary study on tidal sand ridges[J].Oceanologia et Limnologia Sinica,1983,14(3):286-296.刘振夏,夏东兴.潮流脊的初步研究[J].海洋与湖沼,1983,14(3):286-296.
[13]KEITH R D,DAVID A H.The origin,classification and modelling of sand banks and ridges[J].Continental Shelf Research,1999,19(10):1 285-1 330.
[14]LIU A-cheng,GU Jun-hui,LU Qi.A tidal current ridge in the Cezi Channel of the Zhoushan Archipelago[J].Marine Science Bulletin,2007,26(5):49-55.刘阿成,顾君晖,陆琦.舟山群岛册子水道现代潮流沙脊的初步研究[J].海洋通报,2007,26(5):49-55.
[15]SIMARRO G,GUILLEN J,PUIG P,et al.Sediment dynamics over sand ridges on a tideless mid-outer continental shelf[J].Marine Geology,2015,361:25-40.
[16]DU Jia-bi,WANG Ya-ping.Evolution simulation of radial sand ridges in the southern Yellow sea[J].Journal of Nanjing University:Natural Siences,2014,50(5):636-645.杜家笔,汪亚平.南黄海辐射沙脊群地貌演变的模拟研究[J].南京大学学报:自然科学版,2014,50(5):636-645.
[17]XU Can,GAO Jian-hua,YANG Yang,et al.Suspended sediment transport patterns in the tidal channels in the southwestern Yellow Sea[J].Acta Oceanologica Sinica,2014,36(11):150-162.徐粲,高建华,杨旸,等.南黄海辐射沙脊群潮汐水道的悬浮输送特征[J].海洋学报,2014,36(11):150-162.
[18]NI Wen-fei,WANG Ya-ping,ZOU Xin-qing,et al.Study on the dynamics and stability of the Kushuiyang tidal channel at radial sand ridges in the southern Yellow Sea[J].Marine Science Bulletin,2013,32(6):668-677.倪文斐,汪亚平,邹欣庆,等.南黄海辐射沙脊群苦水洋海域的沉积动力特征及稳定性研究[J].海洋通报,2013,32(6):668-677.
[19]SIMON P N,JAMES R J,SCOTT J C.Impact of tidal energy converter(TEC)arrays on the dynamics of headland sand banks[J].Renewable Energy,2012,37:387-397.
[20]EDWARD J A.Storms,shoreface morphodynamics,sand supply,and the accretion and eronsion of the coastal dune barriers in the southern North Sea[J].Geomorphology,2013,199:8-21.