Trace-element concentrations of hydrothermally altered basaltic rocks in IODP...

a Relative standard deviation between 10–16%.b Data determined by XRF with better quality are used.Values in mg/kg given in ppm.a 相对标准偏差（Relative standard deviation）介于10%至16%之间。 b 采用经X射线荧光光谱法（XRF）测定得到的高质量数据。以mg/kg为单位的数值以ppm形式给出。