福建闽江口和九龙江口外线状沉积沙体特征

许艳; 蔡锋; 卢惠泉; 吴承强; 郑勇玲; 鲍晶晶

doi:10.3969/j.issn.0253-4193.2014.05.016

福建闽江口和九龙江口外线状沉积沙体特征

doi: 10.3969/j.issn.0253-4193.2014.05.016

1.
国家海洋局第三海洋研究所, 福建厦门 361005
2.
国家海洋局第三海洋研究所, 福建厦门 361005;国家海洋局海岛研究中心, 福建平潭 350400

基金项目: 国家自然科学基金——扬子浅滩南部地形地貌精细研究及成因分析（41276058）；东沙群岛北部海域地形特征命名示范应用研究（201205004-4）。

计量
- 文章访问数: 1421
- HTML全文浏览量: 9
- PDF下载量: 1449
- 被引次数: 0
出版历程
- 收稿日期: 2013-04-26
- 修回日期: 2013-09-09

The characteristics of linear sands off Minjiang Estuary and Jiulongjiang Estuary in Fujian,China

1.
Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China
2.
Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China;Island Researoh Center, State Oceanic Administration, Pingtan 350400, China

摘要

摘要: 福建沿海强潮河口闽江口和九龙江口外均发育有一定规模的线状沉积沙体，通过多波束调查采集数据和浅剖、沉积物资料的分析，对此类沙体特征进行研究，初步认为其为潮流沙脊。结果表明：在平面分布上，闽江口外潮流沙脊走向近SW-NE向，沙脊局部连片；九龙江口外沙脊走向近ENE-WSW向，沙脊末端有分叉现象。分析现代海洋环境作用并结合沙脊规模、水深和河口相对关系的研究显示，沙脊主体规模基本稳定，现代水动力仅对沙脊表面有改造作用。在潮流、波浪和近岸余流的共同作用下沙脊脊顶部略显平滑，两翼坡度较缓，其沉积物组成以粒度较粗的古河口砂质浅滩砂为主，沉积主体为全新世海平面上升时期，近岸河口环境的古水下三角洲遭受潮流侵蚀而成。
- 潮流沙脊 /
- 地貌特征 /
- 闽江口外 /
- 九龙江口外
Abstract: A certain scale of linear submarine sands which are referred to as tidal sand ridges occurs off the Minjiang Estuary and the Jiulongjiang Estuary in Fujian. Based on the survey data by multi-beam acoustic sounding,sub-bottom profile as well as sediment grain sizes analysis,we studied the features of the tidal sand ridges. The results show that the sand ridges off the Minjiang Estuary are oriented NE-SW,and some of them are connected. The sand ridges off the Jiulongjiang Estuary are oriented ENE-WSW,and some appear to diverge on the end. According to the analysis of marine hydrodynamic environment affects,and the relation among the ridges scale,depth and relative distance to the estuary,the main body of the sand ridges is basically steady. They have been reformed by the recent hydrodynamics as evidenced by similar sand waves on both sides of flanks. The interaction by recent tidal current,wave and residual current leads to a relatively smooth surface on top and both flanks of the sand ridges. It's indicated that the tidal sands primarily originated from estuarine coarse sandy shoals on the paleo-channel system and were subsequently modified into the linear forms during the period of Holocene transgression when sea-level rise was decelerated.
- tidal sand ridges /
- geomorphic features /
- Minjiang Estuary /
- Jiulongjiang Estuary

HTML全文

参考文献(42)

Veen J. Sandwaves in the Southern North Sea[J]. Hydrographi Review, 1935, 12:21-29.

Twichell D, Brooks G, Gelfenbaum G, et al. Sand ridges off Sarasota, Florida: A complex facies boundary on a low-energy inner shelf environment[J].Marine Geology, 2003, 200(1): 243-262.

刘振夏, 夏东兴, 王揆洋.中国陆架潮流沉积体系和模式[J].海洋与湖沼, 1998, 29(2):141-147.

Emery K O. Relict sediments on continental shelves of world[J].The American Association of Petroleum Geologists Bulletin, 1968, 52(3):445-464.

Boggs S. Sand-wave fields in Taiwan Strait[J]. Geology, 1974, 2:251-253.

刘振夏.江苏潮流砂的粒度特征及其沉积环境的研究[J].海洋地质与第四纪地质, 1983, 3(4):25-32.

王颖, 朱大奎, 周旅复, 等. 南黄海辐射沙脊群沉积特点及其演变[J].中国科学D辑:地球科学, 1998, 28(5):385-393.

吴自银, 曹振轶, 王小波, 等.海底沙脊地貌的研究现状及进展[J]. 海洋学研究, 2006, 24(3):53-63.

苏大鹏, 胡刚, 刘健, 等.东海陆架区潮流沙脊的沉积动力学[J].海洋地质动态, 2008, 24(6):15-18.

刘忠臣, 陈义兰, 丁继胜, 等.东海海底地形分区特征和成因研究[J].海洋科学进展, 2003, 21(2):160-173.

Liu Z X, Berne S, Saito Y, et al. Internal architecture and mobility of tidal sand ridges in the East China Sea[J]. Continental Shelf Research, 2007, 27:1820-1834.

Ryan D A, Brooke B P, Bostock H C, et al. Bedload sediment transport dynamics in a macrotidal embayment, and implications for export to the southern Great Barrier Reef shelf[J]. Marine Geology, 2007, 240:197-215.

Park S C. Late Quaternary evolution of tidal sand ridges in the southern coast of Korea[J].Quaternary International, 2012, 279:368.

潘定安, 贺松林, 沈焕庭. 闽江口外通海航道及其外拦门沙形成机制探讨[J]. 泥沙研究, 1992, 59(3):1-10.

许志峰, 王明亮, 洪阿实, 等. 闽江口拦门沙砂体的演变及其沉积年代[J].台湾海峡, 1990, 9(1):29-33.

徐茂泉, 李超.九龙江口沉积物中重矿物组成及其分布特征[J].海洋通报, 2003, 22(4):32-40.

蔡锋, 黄敏芬, 苏贤泽, 等.九龙江河口湾泥沙运移特点与沉积动力机制[J].台湾海峡, 1999, 18(4):418-424.

吴承强.福建近岸海域海底地貌研究[D].厦门:国家海洋局第三海洋研究所, 2011.

海洋图集编委会.渤海黄海东海海洋图集(水文)[M].北京:海洋出版社, 1992:428.

中国海湾志编纂委员会.中国海湾志第十四分册(重要河口)[M]. 北京: 海洋出版社, 1998:626-704.

成都地质学院陕北队.沉积岩(物)粒度分析及其应用[M].北京:地质出版社, 1978:57-67.

郑小平.闽江口潮汐潮流特性的初步分析[J].水利科技, 1989, 2:31-36.

汤军健, 余兴光, 陈坚, 等.闽江口入海悬沙输运的数值模拟[J].台湾海峡, 2009, 28(1):90-95.

陈满春.厦门湾潮流场的数值模拟[J].海洋通报, 1997, 16(3):13-20.

Zimmerman J T F. Dynamics, diffusion and geomorphological significance of tidal residual eddies[J]. Nature, 1981, 290:549-555.

Hulscher S J M H.Tidal-induced large-scale regular bed form patterns in a three-dimensional shallow water model[J].Journal of Geophysical Research, 1996, 101(C9):20727-20744.

陈峰, 张培辉, 王海鹏, 等. 闽江口水下三角洲的形成与演变Ⅲ.三角洲前缘与前三角洲[J]. 台湾海峡, 1999, 18（2):140-146.

王海鹏, 张培辉, 陈峰, 等. 闽江口水下三角洲沉积特征及沉积环境Ⅱ.晚更新世—全新世沉积特征和沉积环境[J]. 台湾海峡, 2000, 19(2):132-140.

刘锡清.中国大陆架的沉积物分区[J].海洋地质与第四纪地质, 1990, 10(1):13-24.

张文开.闽江口外沙浅滩发育与演变分析[J].福建师范大学学报(自然科学版), 1991, 7(3):94-100.

刘维坤, 陈峰, 周定成.厦门海沧进港航道口门浅滩的形成与演变[J].台湾海峡, 1994, 13(4):317-322.

陈峰, 张培辉, 王海鹏, 等. 闽江口水下三角洲的形成与演变:Ⅱ.水下三角洲平原[J]. 台湾海峡, 1999, 18(1): 1-5.

福建师范大学地理系闽江口组. 闽江河口区动力地貌[M]. 福州:福建人民出版社, 1989:100-104.

温春, 刘健, 张军强, 等.南黄海江苏岸外潮流沙脊远端沉积与演化[J].海洋地质与第四纪地质, 2011, 31（3):1-9.

Park S C, Han H S, Yoo D G. Transgressive sand ridges on the mid-shelf of the southern sea of Korea（Korea Strait): formation and development in high-energy environments[J].Marine Geology, 2003, 193: 1-18.

蔡锋, 曹超, 周兴华, 等.中国近海海洋——海底地形地貌[M].北京:海洋出版社, 2013:203-218.

罗健, 龚静怡, 张行南.九龙江口及厦门湾悬沙分布和输移沉积的多时相遥感分析[J].水利水运科学研究, 1999(4):368-376.

张瑞瑾.河流泥沙动力学[M].北京:中国水利出版社, 2005:73.

常瑞芳.海岸工程环境[M]. 青岛:青岛海洋大学出版社, 1997:125.

Vriend H J D. Analysis of horizontally two-dimensional morphological evolutions in shallow water[J]. Journal of Geophysical Research, 1987, 92(C4):3877-3893.

Huthnance J M. On one mechanism forming linear sandbanks[J]. Estuarine and Coastal Shelf Science, 1982, 14: 79-99.

Snedden J W, Dalrymple R W. Modern shelf sand ridges: from historical perspective to a unified hydrodynamic and evolutionary model[J]. Special Publications of SEPM, 1999, 64:13-28.

施引文献

资源附件(0)

访问统计