摘要
中国海砂主要来自海岸带、陆架和近岸浅海3个堆积体系。海岸带海砂与近岸浅海海砂同样具有以粗粒中砂、粗砂为主,开采方便等特点,最适宜做建筑集料使用,但从资源合理利用角度看,海岸带海砂作为建筑用砂开采会引起很多环境负面效应,应停止开采。除台湾浅滩等少数地方外,陆架海砂大部分以细砂为主,目前难以成为主要开发对象。只有近岸浅海海砂才是今后寻找和开采的主要目标。
Sea sand can be found in coastal zone, continental shelf and nearshore shallow sea sediment systems in China. The total amount of coastal sand is about 3588×108～5382×108 m3. The total amount of nearshore shallow sea sand is about 6651×108～10186×108 m3. Coastal sand and nearshore shallowsea sand are mainly composed of medium and coarse sand, which is easy to be excavated and used as construction materials. As sand dredging in coastal zone will bring about serious environmental effects such as coastal erosion, government should forbid sand dredging activities in coastal zone area.The total amount of sea sand existing in the China continental shelf is about 6 697×108 m3, but this kind of sand is too fine to be used as construction materials. Sea sand as construction materials in China continental shelf is poor in quality and the only exception is along the Taiwan Strait shoal. So, the China continental shelf will not be the potential target area. Otherwise, the nearshore sea sand will be the possible area for sand exploration and mining.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2003年第3期83-89,共7页
Marine Geology & Quaternary Geology
基金
国际合作项目(CCOP DCGMII)
地质科技合作配套项目
关键词
海砂
海岸带
浅海
分布
远景区
中国
sea sand
resource characteristics
prospect area
China
