The origins of ultrapotassic rocks as inferred from Sr, Nd and Pb isotopes

作者: David R Nelson , Malcolm T McCulloch , Shen-Su Sun

DOI: 10.1016/0016-7037(86)90172-9

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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 …

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