(Table 3) Radiogenic isotope ratios of ODP Hole 126-792E

Oligocene arc. Samples (all >25% plagioclase phyric) were leached in 3 M HCl for 2 h Rb/Sr ratios were determined on the post-leach residue by ICP-MS following a HF-HNO3...

渐新世岛弧（Oligocene arc）。所有样品的斜长石斑晶占比均大于25%，先以3 mol/L盐酸浸蚀2小时；随后对浸蚀后的残渣采用氢氟酸-硝酸（HF-HNO3）体系进行前处理，并通过电感耦合等离子体质谱法（ICP-MS）测定其Rb/Sr比值。