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热带海洋学报 ›› 2025, Vol. 44 ›› Issue (6): 165-175.doi: 10.11978/2025029CSTR: 32234.14.2025029

• 海洋资源开发 • 上一篇    下一篇

适用于海砂勘查的碎屑沉积物分类方法探讨

林明智1,2(), 陈波1,2(), 陈旸1,2   

  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 海南省海洋地质调查院, 海南 海口 570206
  • 收稿日期:2025-02-25 修回日期:2025-04-11 出版日期:2025-11-10 发布日期:2025-12-03
  • 通讯作者: 陈波(1982—), 男, 正高级工程师, 主要从事海洋地质研究。email:
  • 作者简介:

    林明智(1987—), 男, 海南省文昌市人, 高级工程师, 主要从事海洋地质和矿产地质研究。email:

  • 基金资助:
    海南省财政专项项目(46000025T000001444979); 海南省财政专项项目(46000021T000000002276); 海南省财政专项项目(T100732); 海南省海洋地质资源与环境重点实验室开放课题项目(24-HNHYDZZYHJKF044)

Discussion on classification methods of clastic sediment suitable for marine sand exploration

LIN Mingzhi1,2(), CHEN Bo1,2(), CHEN Yang1,2   

  1. 1 Hainan Key Laboratory of Marine Geological Resources and Environment, Haikou 570206, China
    2 Marine Geological Institute of Hainan Province, Haikou 570206, China
  • Received:2025-02-25 Revised:2025-04-11 Online:2025-11-10 Published:2025-12-03
  • Contact: CHEN Bo. email:
  • Supported by:
    Financial Project of Hainan Province, China(46000025T000001444979); Financial Project of Hainan Province, China(46000021T000000002276); Financial Project of Hainan Province, China(T100732); Open Project of Hainan Key Laboratory of Marine Geological Resources and Environment(24-HNHYDZZYHJKF044)

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摘要：

近十年迎来了海砂勘查和海砂矿权市场化出让的快速发展期, 粤桂闽近岸出让海砂资源量约3.9×108m³。然而, 应用于海砂沉积物分类的方法众多, 但尚未形成适用性强的分类方案。基于近年来海南岛周边海域海砂勘查结果, 对比常用近浅海沉积物分类方法及其应用效果, 本文提出一套相对适用的海砂沉积物分类方法。该方法采用菱形图表示, 其中简分类型划分为砾(G)、砂质砾(sG)、泥质砾(mG)、砾质砂(gS)、砾质泥(gM)、砂(S)、泥质砂(mS)、砂质泥(sM)、泥(M)9种沉积物类型, 论文进一步给出了细分方案, 以达到和Folk分类方法高度兼容。提出的海砂沉积物分类法兼具描述性和解释性, 在保证简洁性的同时, 又充分考虑砾、砂、粉砂、黏土的粒级含量的意义, 兼顾了野外和室内沉积物分类的可操作性。

关键词: 海砂, 碎屑沉积物, 分类, 菱形图

Abstract:

Over the past decade, there has been a surge in marine sand exploration and the public transfer of marine sand mining rights. Approximately 390 million cubic meters of marine sand resources have been transferred in the coastal regions of Guangdong, Guangxi, and Fujian. However, the classification of marine sand sediments remains challenging due to the variety of methods in use and the lack of a mature, unified classification system. Addressing this urgent technical issue, we propose a suitable classification method for marine sand sediments based on exploration practices in the waters surrounding Hainan Island. By comparing different classification methods and their application effects, this proposed scheme is represented by a diamond diagram, categorizing nine sediment types: gravel (G), sandy gravel (sG), muddy gravel (mG), gravel sand (gS), gravel mud (gM), sand (S), muddy sand (mS), sandy mud (sM), and mud (M). Additionally, a subdivision scheme has been introduced to align closely with the Folk classification method. This classification scheme is both descriptive and explanatory, concise, and emphasizes the significance of each grain grade's content, including gravel, sand, silt, and clay. It ensures practicality for sediment classification and paves the way for further laboratory research.

Key words: marine sand, clastic sediments, classification, diamond diagram

中图分类号: 

  • P744.2