Fractionation elemental

Ingall, E. and Jahnke, R. (1997). Influence of water-column anoxia on the elemental fractionation of carbon and phosphorus during sediment diagenesis. Mar. Geol. 139, 219-229. 

Guillong M, Gunther D (2002) Effect of particle size distribution on ICP-induced elemental fractionation in laser ablation-inductively coupled plasma-mass spectrometry. J Anal At Spectrom 7 831-837 Gunther D (2002) Laser-ablation inductively coupled plasma mass spectrometry. Anal Bioanal Chem 372 31-32... 

Gast PW (1968) Trace element fractionation and the origin of tholeiitic and alkaline magma type. Geochim Cosmochim Acta 32 1057-1086... 

Elution volume calibrations were performed using radioactive tracers of the rare earth elements and 133Ba, with atomic-absorption or flame-emission analysis of iron, sodium, potassium, calcium, and magnesium. As shown in Fig. 5.14, any barium added to the second columns is eluted at the start of the light rare earth element fraction . To ensure barium removal the sample can be put through the first column again. 

Figg, D.J., Cross, J. B., and Brink, C. (1998). More investigations into elemental fractionation resulting from laser ablation inductively coupled plasma mass spectrometry on glass samples. Applied Surface Science 129 287-291. 

As will be shown below, writing this equation as a matrix equation is rather straightforward. Similar techniques can be used for the so-called radiation boundary conditions which involve linear combinations of concentration and concentration gradient and appear in connection with elemental fractionation between adjacent phases. 

From the equations ruling elemental fractionation during progressive removal described in Section 9.3, the relationship between mean values is... 

Discuss the elemental fractionation induced by the percolation of a melt with specific density 2.7 through a porous matrix with specific density 3.4 for different values of Di and volume porosity [Pg.516]

The ratio v /v,iq is given by the Table 9.7 which shows that the smaller the porosity, the more efficient the elemental fractionation. Assuming, as an illustration, that, at r=0, element i is normally distributed as a function of depth with zo=0 and 2 = 1, the spatial concentration distribution after a time t = 2 has been calculated from equation (9.4.41) and drawn in Figure 9.14 for various values of Dt. 

Hertogen, J. Gijbels, R. (1976). Calculation of trace element fractionation during partial melting. Geochim. Cosmochim. Acta, 40, 313-22. 

Richter, F. M. (1986). Simple models for trace-element fractionation during melt segregation. Earth Planet. Sci. Letters, 11, 333-44. 

Shaw, D. M. (1970). Trace-element fractionation during anatexis. Geochim. Cosmochim. Acta, 34, 237-43. 

Capobianco, C.H. Drake, M. 1990. Partitioning of ruthenium, rhodium, and palladium between spinel and silicate melt and implications for platinum-group element fractionation trends, Geochimica et Cosmochimica Acta, 54, 869-874. 

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