Immobile elements

Winchester, J.A. Floyd, P. A. 1977, Geochemical discrimination of different magma series and their differentiation products using immobile elements. Chemical Geology, 20, 325-343. 

Immobile Element Lithogeochemistry of felsic volcanic rocks hosting the Restigouche Volcanogenic Massive Sulfide Deposit, Bathurst Mining... 

Based on Ti02/Ab03 vs. Zr/AbOa plot, 5 separate populations A, B, C, D and E with average Zr/TiOa = 0.041, 0.083, 0.110, 0.048, and 0.042 are recognized (Fig. 1). This classification is supported by other immobile-element ratios used in this study (Table 1 Figs. 2 to 4). 

Table 1. Selected immobile element ratios of volcanic units (A-G) recognized at the Restigouche deposit.

Bein, A. Lentz, D.R. 2009. Immobile Element Lithogeochemistry of felsic volcanic rocks hosting the Restigouche Volcanogenic Massive Sulfide Deposit, Bathurst Mining Camp, New Brunswick Canada. Proceedings of lAGS 2009. 

Finlow-Bates, T Stumpfl, E.F. 1981. The Behaviour Of So-Called Immobile Elements In Hydrothermally Altered Rocks Associated With Volcanogenic Submarine-Exhalative Ore Deposits. Mineralium Deposita, 11, 319-328. 

Concentration of mobile element j in parent material Concentration of mobile element j in soil Concentration of immobile element i in parent material Concentration of immobile element i in soil Mass of element j added or removed via soil formation Net strain determined using element i... 

Fractional mass gain or loss of element j relative to immobile element i Mass gain or loss per unit volume of element j relative to immobile element i. 

Figure 7 Theoretical proportion of dissolved transport as a function of the concentration of riverine suspended sediments for three values of the ratio of concentration in the suspended load over concentration in the dissolved load. = 10, 100, and 1,000 correspond to the most mobile elements (Na, B, Re, Se, As, Sb), the intermediate elements (Cu, Ni, Cr, Ra) and highly immobile elements (Th, Al, Ti, Zr) respectively (see Figure 2).

Rubin J. N., Henry C. D., and Price J. G. (1993) The mobility of Zr and other immobile elements during hydrothermal alteration. Chem. Geol. 110, 29—47. 

In this chapter, several simple flow models will be considered for different structures of the easily penetrable roughness. Generally, two EPR structures will be investigated. In Section 3.1, it will be taken for simplicity that the EPR consists of small spheres trapped in the volume. Therefore, no equations will be required for characterizing the medium of obstruction . This structure is called the EPR made up of immobile elements . In contrast, the obsUuctions in Section 3.2 will be allowed to move along the wind ( EPR made up of mobile elements , or Droplet EPR ). Analytical solutions will be derived whenever it is possible. 

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