CAJ | 학술논문

使用IC P‐A ES和IC P‐M S对渤海中部118°54′E左右南北向断面的表层沉积物中53种常、微量及稀土元素进行了测试，研究了其含量变化和分布特征，并进行了物质组成分析。研究表明：该区沉积物以B94站为界，南北差异明显，南部区域沉积物以黏土质粉砂为主，富集Al2 O3，CaO ，Fe2 O3，MgO ，MnO ，P2 O5和 TiO等常量元素以及绝大多数的微量元素和稀土元素等与细颗粒黏土矿物相关的元素；北部区域沉积物以粉砂‐砂为主，富集SiO2， K2 O和Na2 O等常量元素以及Zr ，Ba ，Sr ，Sb和Hf等微量元素，稀土元素相对亏损。物源对比表明南部沉积物具有黄河来源沉积物特点，北部沉积物具有滦河来源特点，两者的分界大致在38°42′N附近。河口动力过程、渤海环流是影响该区沉积物扩散的主要因素。
사용IC P‐A ES화IC P‐M S대발해중부118°54′E좌우남북향단면적표층침적물중53충상、미량급희토원소진행료측시，연구료기함량변화화분포특정，병진행료물질조성분석。연구표명：해구침적물이B94참위계，남북차이명현，남부구역침적물이점토질분사위주，부집Al2 O3，CaO ，Fe2 O3，MgO ，MnO ，P2 O5화 TiO등상량원소이급절대다수적미량원소화희토원소등여세과립점토광물상관적원소；북부구역침적물이분사‐사위주，부집SiO2， K2 O화Na2 O등상량원소이급Zr ，Ba ，Sr ，Sb화Hf등미량원소，희토원소상대우손。물원대비표명남부침적물구유황하래원침적물특점，북부침적물구유란하래원특점，량자적분계대치재38°42′N부근。하구동력과정、발해배류시영향해구침적물확산적주요인소。
T he 53 major ,trace elements and REEs of the surface sediments collected near 118°54′E in the central Bohai Bay were tested using ICP‐AES and ICP‐MS .Their contents ,spatial distributions and the sediment compositions were analyzed .The results showed that the sediments in studied area were quite different between the north and south regions with B94 station as a boundary .In the southern region ,sed‐iments were mainly clayey silt enriched in Al2 O3 ,CaO ,Fe2 O3 ,MgO ,MnO ,P2 O5 ,TiO and the vast ma‐jority of the trace elements and rare earth elements associated with the fine particles of clay minerals . Meanwhile ,the northern region was mainly the silt‐sand sediments enriched in the major elements of SiO2 , K2 O ,Na2 O and the trace elements of Zr ,Ba ,Sr ,Sb ,Hf etc .,and was relatively deficit in REEs .The comprehensive provenance analysis showed that ,the southern region sediments were mainly affected by the Yellow River sediments ,while the sediments in the north region were mainly come from the Luanhe River .The boundary was roughly near 38°42′N .The estuarine dynamic process and the circulation in Bo‐hai sea is the main factor affecting the sediment diffusion in this area .