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我国稀土元素(REE)矿床主要产自于碳酸岩型和风化壳离子吸附性矿床,储量居世界首位。而深海沉积物中的REE矿床作为一种新型海底矿床,由于巨大的开发潜力及易于淋滤提取的优点,已成为全球海洋地质工作者的研究热点。根据大量的深海泥分析,Kato等(2011)发现东南太平洋和中北太平洋富集区内1 km2深海泥中蕴含的ΣREY(REE+Y)就能够满足全球消费总量的1/15。目前对热液活动区沉积物中的REE组成已经取得不少研究成果(Cocheri,1994),然而REE在深海泥中的赋存
REE deposits in China are mainly derived from carbonatite-type and weathered crust ion-adsorbed deposits, ranking first in the world in reserves. REE deposit in deep-sea sediments, as a new type of seafloor deposit, has become a hot research topic of global marine geologists because of its huge development potential and its advantages of easy leaching and extraction. Based on a large number of deep-sea mud analyzes, Kato et al. (2011) found that ΣREY (REE + Y) contained in 1 km2 deep-sea mud in the southeastern Pacific and the Central North Pacific is sufficient to meet 1/15 of the global total. At present, many studies have been made on the composition of REE in sediments of hydrothermal activity (Cocheri, 1994). However, the REE occurrence in deep sea mud