(Table 5) Chemical composition of ashes and sediments from DSDP Holes 69-505 and 69-504@en

Sediment depth is given in mbsf. # = Precision is 2-3% of the amount present. Samples were sieved through 63 µ mesh before analysis to remove any rust contaminants from the drill pipe. This may have affected SiO2 and CaCO3 abundances slightly.沉积物深度以海底以下米数（meters below seafloor, mbsf）为单位给出。# 代表测量精度为待测物质含量的2%~3%。分析前，样品先经63微米（63 µm）筛网过筛，以去除钻杆带来的铁锈污染物。该操作可能会对二氧化硅（SiO₂）和碳酸钙（CaCO₃）的丰度产生轻微影响。