基于价格因素的深海富稀土沉积物价值评价——与陆地稀土矿床比较分析

Value Evaluation of Deep Sea Rich-REE Sediments Based on Price Factor-A Comparative Analysis of Terrestrial REE Deposits

随着陆地稀土资源的日益短缺,开发海底稀土资源成为未来发展趋势。选取东太平洋CC区、东南太平洋、中印度洋海盆和南鸟礁周边海域为研究区域,引入价格因素,结合深海富稀土沉积物元素含量,对其经济价值进行分析,并与陆地矿物型和风化型稀土矿床进行比较。结果表明:深海沸石粘土型富稀土沉积物单位经济价值较高,远高于陆地风化型的广东饶平县稀土矿,但低于矿物型的白云鄂博稀土矿。根据分析结果,进行深入讨论,从勘探开发、调查技术和资源评价等角度提出了深海稀土资源开发的发展方向和对策建议。

With the shortage of land REE resources,the exploitation of seabed REE resources has become a trend.Taking the economic value of rich-REE sediments in the CC area of the Pacific Ocean,the Southeast Pacific Ocean,the central Indian Ocean Basin and the surrounding areas Minami Torishima Island as examples,this paper analyzed the element content of deep-sea REE rich sediments by combining the price,and compared with those of terrestrial mineral type and weathering type.The results showed that the unit economic value of the deep-sea zeolite clay type rare earth rich sediments was much higher than that of the terrestrial weathered crust type in Guangdong,Raoping,and lower than that of the mineral type in Bay an Obo REE deposit.According to the results of analysis,this paper put forward the development direction and suggestions for exploration and development,technical investigation,resource evaluation,etc.