CAJ | 학술논문

为研究渤海东部及黄海北部海域沉积物常量元素组成特征及与物源的关系，分析了该海域138个站位沉积物样品的常量元素含量。渤海东部及黄海北部海域沉积物常量元素Al2O3、MgO、Na2O和TFe2O3分布基本相似； SiO2分布与Al2O3、MgO、Na2O和TFe2O3分布相反； Al2O3、MgO、TFe2O3、TiO2和Na2O等元素与细粒沉积物呈正相关， SiO2与粗粒沉积物呈正相关， CaO、CaCO3、MnO和K2O分布与沉积物粒度无明显正或负的相关性；北黄海东部K2O分布反映了鸭绿江物质的影响。R-型聚类分析得出3种组合类型，以MgO、CaO和K2O及MnO为代表，分别对应反映陆源细粒物质输入、指示黄河和鸭绿江物质的影响和海洋自生作用。依据 Q-型聚类分析特征，将调查海域沉积物划分为4个不同的地球化学分区，同时综合分析得出了Ⅰ区、Ⅱ区、Ⅲ区和Ⅳ区的沉积物运移的路径趋势。K2O/CaO揭示黄河物质影响自南至北和自西向东呈逐渐减弱的趋势，其中研究区西南部和北黄海中西部受黄河物质影响较强，北黄海东部沉积物更多受鸭绿江物质影响。
위연구발해동부급황해북부해역침적물상량원소조성특정급여물원적관계，분석료해해역138개참위침적물양품적상량원소함량。발해동부급황해북부해역침적물상량원소Al2O3、MgO、Na2O화TFe2O3분포기본상사； SiO2분포여Al2O3、MgO、Na2O화TFe2O3분포상반； Al2O3、MgO、TFe2O3、TiO2화Na2O등원소여세립침적물정정상관， SiO2여조립침적물정정상관， CaO、CaCO3、MnO화K2O분포여침적물립도무명현정혹부적상관성；북황해동부K2O분포반영료압록강물질적영향。R-형취류분석득출3충조합류형，이MgO、CaO화K2O급MnO위대표，분별대응반영륙원세립물질수입、지시황하화압록강물질적영향화해양자생작용。의거 Q-형취류분석특정，장조사해역침적물화분위4개불동적지구화학분구，동시종합분석득출료Ⅰ구、Ⅱ구、Ⅲ구화Ⅳ구적침적물운이적로경추세。K2O/CaO게시황하물질영향자남지북화자서향동정축점감약적추세，기중연구구서남부화북황해중서부수황하물질영향교강，북황해동부침적물경다수압록강물질영향。
The major element abundances of the sediment samples collected from 138 stations were analyzed with the purpose of studying the distribution of the major elements in the sediments and their relations with the provenance in the east part of the Bohai Sea and the northern Yellow Sea. The Al2O3, MgO, Na2O and TFe2O3 have similar distribution patterns, whereas SiO2 is negatively correlated with these oxides in the east part of Bohai Sea and the northern Yellow Sea. The Al2O3, MgO, TFe2O3, TiO2and Na2O elements are positively correlated with the fine-grained sediments, and SiO2 is positively correlated with coarse-grained sediments; there is no significant positive or negative correlation between CaO, CaCO3, MnO and K2O distribution and grain sizes of sediments; the K2O distribution in the eastern part of the North Yellow Sea reflects the impact of the Yalu River material. R-mode cluster analysis indicates three combinations of types that are represented by MgO, CaO and K2O, MnO, respectively, reflecting the input of terrigenous fine-grained material, the impact of the Yellow River and the Yalu River substances, and marine authigenesis, respectively. According to the Q-mode cluster analysis, the geochemical characteristics of the investigation area are divided into four different sediment geochemical subareas. In addition, the authors also obtained the sediment transport trends and routes in theⅠ,Ⅱ,Ⅲ andⅣ regions. K2O/CaO ratios show that the effect of the Yellow River substances is gradually weakened from the south to the north and from the west to the east, the sediments in the southwest of the study area and in the middle-west parts of the North Yellow are strongly impacted by the Yellow River substances, and the sediments in the east of the North Yellow Sea are more seriously affected by the Yalu River substances.