海洋学研究 ›› 2022, Vol. 40 ›› Issue (3): 33-48.DOI: 10.3969-j.issn.1001-909X.2022.03.004

• • 上一篇    下一篇

海南岛周边海砂资源勘查进展及选区建议

  

  1. 1.海南省海洋地质资源与环境重点实验室，海南 海口 570206； 2.海南省地质测试研究中心，海南 海口 570206； 3.海南省海洋地质调查研究院，海南 海口 570206； 4.南方海洋科学与工程广东省实验室(珠海)，广东 珠海 519082； 5.自然资源部第三海洋研究所，福建 厦门 361005；6.南京大学 地理与海洋科学学院，江苏 南京 210023
  • 出版日期:2022-09-15 发布日期:2022-09-15
  • 通讯作者: 宋家伟(1984—)，男，高级工程师，主要从事海洋矿产资源调查，E-mail：46244326@qq.com。
  • 作者简介:仝长亮(1981—)，男，山西省大同市人，高级工程师，主要从事海洋地质研究，E-mail：tongchangliang@163.com。
  • 基金资助:
    2022年海南省自然科学基金(422RC800)；2019年海南省基础与应用基础研究计划(自然科学领域)高层次人才项目(2019RC349)；海南省国土环境资源厅“海南岛北部海砂资源调查评价”专项(HZ2015235)；海南省地质局“西南浅滩海砂开采试点海砂出让前期工作”专项(T102972.510)；海南省财政厅“南海固体矿产资源潜力调查评价”专项(T100732)；南方海洋科学与工程广东省实验室(珠海)创新团队建设项目(311021004)

Progress of marine sand resource exploration around Hainan Island and suggestions for selection of exploration areas

  1. 1.Hainan Key Laboratory of Marine Geology Resources and Environment, Haikou 570206, China; 2.Hainan Geological Detection and Research Center, Haikou 570206, China; 3.Marine Geological Institute of Hainan Province, Haikou 570206, China; 4.Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China; 5.Third Institute of Oceanography, MNR, Xiamen 361005, China; 6.School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210023, China

  • Online:2022-09-15 Published:2022-09-15

PDF

248

摘要： 海砂是重要的海底矿产资源。海南岛海砂资源广泛地分布于海岸带和陆架区域，规模较大，品质优良，富含重矿物。文中阐述了海南岛周边海砂资源的基本分布特点，结合多个海砂资源勘查专项工作，以重矿物砂矿和集料用海砂为讨论重点，回顾了海南岛周边海砂勘查的工作进展和主要成果。通过勘查，海南岛周边海域共圈定了15处重矿物砂矿异常区，并探明了1处大型锆钛砂矿床，但由于调查研究程度不高，海域重矿物砂矿资源潜力并不明朗。海南岛周边底质调查比例尺基本达到了1∶25万，为海洋集料用海砂的勘查提供了扎实的基础。近年来在琼州海峡东口和琼西潮流沙脊区的勘查，探获了数十亿立方米的集料用海砂，预测资源潜力可达数百亿立方米。经综合分析，海南岛周边海域可圈定8处海砂资源勘查远景区，除了琼州海峡东口和琼西潮流沙脊区，琼东北侧陆架、琼西南侧陆架和北部湾一带，均是海砂资源的有利成矿区，并可能具有重矿物资源潜力。根据其具体沉积环境，分别探讨了各远景区的勘查目标和任务，结合现阶段工作进展和存在的问题，提出了今后海砂勘查的工作建议。


关键词: 海砂资源, 勘查, 进展, 选区, 海南岛周边

Abstract: Marine sands are important submarine mineral resources. The marine sand resources of Hainan Island are widely distributed in coastal zones and continental shelf areas, with large scale, good quality and rich in heavy minerals. The basic distribution characteristics of marine sand resources around Hainan Island are described, and the progress and main achievements of marine sand exploration around Hainan Island are reviewed with emphasis on heavy mineral sand and aggregate sand. Through the exploration, 15 abnormal areas of heavy mineral placer have been delineated in the sea area around Hainan Island, and one large zirconiumtitanium placer deposit has been proved. However, due to the low level of investigation and research, the resource potential of heavy mineral placer is not clear. The scale of sediment survey around Hainan Island has basically reached 1∶250 000, which provides a solid foundation for the exploration of aggregate sand resources. In recent years, billions of cubic meters of aggregate sand resources have been discovered in the east entrance of Qiongzhou Strait and tidal sand ridge area of the western Hainan, and the resource potential is predicted to reach tens of billions of cubic meters. According to the comprehensive analysis, 8 potential exploration areas of marine sand resources can be delineated around Hainan Island. Except the east mouth of Qiongzhou Strait and the tidal sand ridge area of the western Hainan, the northeast continental shelf of Hainan, the southwest continental shelf of Hainan and Beibu Gulf area are all favorable enrichment areas of marine sand resources, and may contain heavy mineral resources potential. According to the specific sedimentary environment, the exploration objectives and tasks of each prospective area are discussed respectively. Combined with the current work progress and existing problems, the suggestions for the future marine sand exploration are put forward.


Key words: marine sand resources, exploration, progress, planning proposal, around Hainan Island

中图分类号: