Science. 1993 Dec 17;262(5141):1858-61. doi: 10.1126/science.262.5141.1858.
Uquid metal-liquid silicate partition coefficients for several elements at 100 kilobars and temperatures up to about 3000 kelvin in carbon capsules experimentally converge on unity with increasing temperature. The sense of change of the partition coefficients with temperature resembles the extrapolation of Murthy and may partially contribute to, but by no means provide a complete resolution of, the "excess" siderophile problem in the Earth's mantle. Sulfur and perhaps carbon successfully compete with oxygen for sites in the metallic liquid at these temperatures and pressures. This observation casts doubt upon the hypothesis that oxygen is the light element in the Earth's core.
在 100 千巴和高达约 3000 开尔文的温度下，用碳胶囊进行的实验表明，几种元素的液态金属-液态硅酸盐分配系数随温度升高逐渐趋于 1。随着温度的变化，分配系数的变化趋势与 Murthy 的外推相似，可能在一定程度上有助于解决地幔中“过剩”亲铁元素问题，但绝不能完全解决。在这些温度和压力下，硫，也许还有碳，成功地与氧在金属熔体中竞争占据位置。这一观察结果使人们对氧是地核中轻元素的假说产生了怀疑。
