...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Asian earth sciences >Dynamic sedimentation and geomorphologic evolution of the Laizhou shoal, Bohai sea, Northern China
【24h】

Dynamic sedimentation and geomorphologic evolution of the Laizhou shoal, Bohai sea, Northern China

机译：中国北方渤海莱州浅滩的动态沉积与地貌演化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

As a headland associated sandbank off an unconsolidated coast cape in a progression process, the Laizhou shoal is just located at the coalescent position of the two tidal residual current circumferences, its formation and maintenance dynamics, sedimentation and geomorphology are different from the models proposed up till the present moment. Our findings indicate that: (1) the tidal residual tidal current circumferences are located along the flanks of the shoal itself instead of the flanks of the headland cape, and the sediments under the two circumferences are quite different from those at their coalescent position; (2) the sediments made up of the shoal have an ultimate resource of river sediment instead of an erosion recession cape or seafloor nearby, and are transported directly from the coastal zone through the wave-resulted coastal current rather than through the tidal residual tidal eddies; (3) the shoal continually migrates from southwest to northeast, extending into the Laizhou bay northwest the cape in the past 50 years; (4) because more than 100 reservoirs have been built across the rivers in the northwestern Shandong peninsula, and have greatly reduced the sediments (especially gravel and sand grains) transported into the coastal zone, some locations of the shoal have evolved from deposition to erosion, and the shoal itself has become narrower, but has not evolved from deposition to erosion as a whole.
机译：莱州浅滩是一个不结实的海岸岬角上与岬角相关的沙洲，处于一个渐进过程中，它仅位于两个潮汐剩余流周长的合并位置，其形成和维持动力学，沉积和地貌与之前提出的模型不同。现在。我们的发现表明：（1）潮汐剩余潮流周线位于滩涂本身的侧面，而不是岬角海角的侧面，并且两个圆周下方的沉积物与聚结位置的沉积物完全不同； （2）由浅滩组成的沉积物具有河流沉积物的终极资源，而不是附近的侵蚀衰退海角或海底，并且是通过波浪产生的沿海水流而不是通过潮汐残留潮汐涡流直接从沿海地区运来的。 ; （3）近50年来，浅滩从西南向东北不断迁移，一直延伸到海角西北的莱州湾。 （4）由于在山东半岛西北部的河流上已修建了100多个水库，大大减少了运往沿海地区的沉积物（尤其是砾石和沙粒），因此浅滩的某些位置已从沉积演变为侵蚀，浅滩本身已经变窄，但并未从沉积演变为整体侵蚀。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号