作者: David R Nelson , Malcolm T McCulloch , Shen-Su Sun
DOI: 10.1016/0016-7037(86)90172-9
关键词:
摘要: … /204Pb (~17.86 and ~17.60 respectively) and high 20’Pb/2MPb (>15.69 and 115.65). Pb isotope … Although their Sr, Nd and 207Pb/ ““Pb isotopic characteristics are more like those of the …