在来自北华南海和包围区域的最近的沉积的使球粒状陨石正常化的 REE 分发模式是类似的,与是的 HREE 价值几乎平等者到或稍微更高,和 La N /Lu 更低的 N 比率,比 PAAS 标准。然而,从 Xijiang 河取样,珍珠河系统的一个主要分支,表演反面趋势,即,与稍微更低的 HREE 价值和更高的 La N /Lu N 比率比 PAAS。在来自北华南海的沉积的 Nd 同位素的分发分别地在珀尔河和华南的沿海的区域边被控制。ε 来自南部的中国的沿海的区域的 Nd (0) 从珍珠河,和 ε Nd (0) 值在近海沉积和台湾岛在这些值之间。结果清楚地显示出那 ε 在东北华南海的 Nd (0) 体积比在北华南海的西南部分高,显示不同来源岩石打字。珍珠河沉积的主要来源岩石是碳酸盐类型并且,在北华南海的西南影响沉积免职在南部的中国的沿海的区域的来源岩石,主要中生代和新生代花岗石,在北华南海的东北区域贡献沉积。由于不同来源岩石类型, HREE 价值和 ε 在由南部的中国的沿海的区域供应的最近的沉积的 Nd (0) 比来自珀尔河的那些高。在 Dongsha 岛区域的东南的华南海的北斜坡上的超过 80% 很快积累的沉积从台湾岛并且从华南的沿海的区域被导出,与仅仅不到 20% 从珍珠河。
The chondrite-normalized REE distribution patterns in recent sediments from the northern South China Sea and surrounding areas are similar, with the HREE values being almost equal to or slightly higher, and the LaN/LuN ratio being lower, than PAAS standards. However, samples from the Xijiang River, a major branch of the Pearl River system, show opposite trends, i.e., with slightly lower HREE values and higher Lan/Lun ratio than PAAS. The distribution of Nd isotopes in sediments from the northern South China Sea was controlled by the Pearl River and the inshore area of South China, respectively. The volume of δNd(0) from inshore areas of southern China is apparently higher than that from the Pearl River, and ,δNd(0) values in offshore sediments and Taiwan Island are between these values. The results clearly show that end(0) volume in the northeastern South China Sea is higher than in the southwest part of the northern South China Sea, indicating different source rock types. The main source rock of the Pearl River sediment is carbonate types and affects sediment deposition in the southwest of the northern South China Sea, while the source rock in the inshore area of southern China, mainly Mesozoic and Cenozoic granites, contributes to sediments in the northeastern area of the northern South China Sea. Due to different source rock types, the HREE values and the volume of δNd(0) in recent sediments supplied by the inshore area of southern China are higher than those from the Pearl River. Over 80% of the rapidly accumulated sediments on the northern slope of the South China Sea in the southeast of Dongsha Islands area were derived from Taiwan Island and from inshore areas of South China, with only less than 20% from the Pearl River.