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）已发表的锶（Strontium, Sr）-钕（Neodymium, 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 Element, REE）配分图（附多篇参考文献）。 图2：校正后δEu值与Ba/Sm比值的相关性图。本研究中的δEu比值通过Dulski（1994）提出的公式校正了Ba₁₆O⁺的质谱干扰，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值与钍（Thorium, Th）浓度的相关性。 图4：沉积物样品中铷（Rubidium, Rb）/锶（Sr）比值与⁸⁷Sr/⁸⁶Sr比值的相关性。 图5：彭亨河、吉兰丹河、拉让河与湄公河沉积物中Sr-Nd同位素组成与粒度参数（平均粒径Mz）的相关性。