Riverine sediment geochemistry and its dispersal pattern on the western Sunda Shelf

Table 1: Published Sr-Nd isotopic ratios on Sunda Shelf and South China Sea (SCS) Fig. 1 Normalized REE diagram of Sunda Shelf sediments with multiple references. Fig. 2 Corrected Eu values versus Ba/Sm ratios. The δEu ratios in this study were corrected for Ba16O+ interferences by the formula given by Dulski (1994). After the correction, the corrected ratios show only weak correlation with Ba/Sm ratios. Fig. 3 Correlation between δEu and Th concnetrations of Pahang and Kelantan river sediments Fig. 4 Correlation between Rb/Sr ratio and 87Sr/86Sr ratios in sediment samples Fig. 5 Correlation between Sr (A)-Nd (B) isotopic composition and grain sizes (Mz) in Pahang, Kelantan, Rajang and Mekong river sediments表1：巽他陆架与南海（South China Sea, SCS）已发表的Sr-Nd同位素比值 图1：巽他陆架沉积物的标准化稀土元素（Rare Earth Elements, REE）配分图（附多组参考数据） 图2：校正后Eu值与Ba/Sm比值散点图。本研究中的δEu比值依据Dulski（1994）提出的公式，针对Ba₁₆O⁺的干扰进行了校正。校正后的比值与Ba/Sm比值仅呈现弱相关性。 图3：彭亨河与吉兰丹河沉积物的δEu值与Th浓度相关性图 图4：沉积物样品中Rb/Sr比值与⁸⁷Sr/⁸⁶Sr比值相关性图 图5：彭亨河、吉兰丹河、拉让河与湄公河沉积物的Sr-Nd同位素组成与粒径（Mz）相关性图