海南岛东北部海域海砂资源分布特征及开发前景分析
投稿时间:2017-09-21  修订日期:2018-11-22  点此下载全文
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作者单位E-mail
仝长亮 海南省海洋地质调查研究院 tongchangliang@163.com 
陈飞 海南省海洋地质调查研究院  
张匡华 海南省海洋地质调查研究院  
基金项目:海南岛北部海砂资源调查评价
中文摘要:海南岛周边浅海海砂资源丰富,岛东北部海域砂、砾质沉积物分布范围较广。本文通过对海南岛东北部海域的水深、地层、沉积物粒度等方面的调查,研究了该区域海砂资源的分布、范围、规模、厚度及沉积环境,对海砂的质量和利用进行了分析。位于琼州海峡东口的潮流沙脊区是海砂的主要分布区域,面积数百平方公里,厚度20~50m,为东西往复潮流所塑造,资源潜力巨大。该区水动力较强,砂含量较高,以中细砂为主,海砂质量较好,可用于填海造地和海洋工程建设,并利用多要素综合评价,提出该区域海砂资源开发前景最佳,开发活动应优先考虑此处。
中文关键词:海南岛  东北部海域  海砂资源  分布特征  开发前景
 
Analysis on the distribution and development of marine sand resources in the northeast sea of Hainan island
Abstract:Around hainan island shallow marine sand resources is rich with wider range of marine sand and gravel sediment distribution in the northeast sea. With the investigation of water depth, formation, sediment particle size etc. in this area, the distribution of marine sand resources, the range of marine sand resources, the scale of marine sand resources, thickness of marine sand resources and the sedimentary environment are studied, and the quality and the use of sea sand is analyzed. Near the eastmouth of Qiongzhou Strait there is a large scale of marine sand resources just on the tidal ridge regions with the area of hundreds square kilometers and the thickness of 20~50 meters, which are shaped by the powerful reciprocating tidal current of east-west direction. Therefore resource potential is tremendous. Due to the stronger hydrodynamic the sand content is much higher in the marine sediments, the grain size fraction of which is mainly fine sand. By using the good quality marine sands, landfill and the marine construction could be accomplished. In addition, with the method of multi-factor comprehensive evaluation, it is suggested that the marine sand resources near the eastmouth of Qiongzhou Strait have the best development prospects and development priority should also be given here.
keywords:Hainan Island  Northeast Sea  Marine Sand Resources  Distribution Characteristics  Development Prospects
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