Geochemical Behavior

The majority of published °Pb reports address the utility of °Pb as a geochronological tool rather than as an element that is involved in complex biogeochemical cycles. Nonetheless, some of these studies do provide insight into the geochemical behavior of °Pb and °Po. Nearly all of the lead in the world s surface oceans is believed to be of anthropogenic origin—derived from combustion... 

These correlations mean that the HSAB principle could be a useful approach to evaluate the geochemical behavior of metals and ligands in ore fluids responsible for the formation of the epithermal vein-type deposits. Among the ligands in the ore fluids, HS" and H2S are the most likely to form complexes with the metals concentrated in the gold-silver deposits (e.g., Au, Ag, Cu, Hg, Tl, Cd), whereas Cl prefers to form complexes with the metals concentrated in the base-metal deposits (e.g., Pb, Zn, Mn, Fe, Cu, and Sn) (Crerar et al., 1985). 

Gueniot B, Munier-Lamy C, Berthelin J (1988b) Geochemical behavior of Uranium in soils, part 11 Distribution of uranium in hydromorphic soils and soil sequences. Application for suificial prospecting. J Geochem Explor 31 39-55... 

It has been suggested by Lai [34] that 10Be and 26A1 taken together form an ideal pair for absolute dating. Their residence time and geochemical behavior in the earth s biosphere are sufficiently similar that one may expect a constant ratio of these radioisotopes in all sediments at the time of deposition. Each of the radioisotopes decays exponentially, so that the age of the sediments can be calculated from ... 

In natural waters, the geochemical behavior of nickel is similar to that of cobalt (USEPA 1980). It is therefore not surprising that nickel-cobalt mixtures in drinking water of rats were additive in toxicity (WHO 1991) and that there is a high correlation between nickel and cobalt concentrations in terrestrial plants (Memon et al. 1980). 

Mucci, A. et al. 2000. The differential geochemical behavior of arsenic and phosphorus in the water column and sediments of the Saguenay Fjord Estuary, Canada. Applied Geochemistry, 6, 293-324. 

A consequence of this geochemical behavior is that the abundance of Mo in sediments (as well as the abundances of U and Re) can be used as an... 

Table 23.6 Certain Striking Differences in the Chemical Nature and Geochemical Behavior of Marine and Soil Humic Compounds.

Kaplan, D.I. and Serkiz, S.M. In-situ Kj values and geochemical behavior for inorganic and organic constituents of concern at... 

Geochemical detection of uranium deposits in sandstone-type deposits depends on the geochemical behavior of U and pathfinder elements (Rose Wright 1980). Uranium is dispersed under oxidizing conditions but is immobile under reducing conditions. Adsorption on freshly precipitated Fe-oxides and certain types of organic matter also limits dispersion unless high concentrations of or... 

McCreadie, H., Jambor, J.L., Blowes, D.W. (1998) Geochemical behavior of autoclave-produced ferric arsenates jarosite in a gold-mine tailings impoundment, in Waste Characterization and Treatment (ed. W., Petruk), Society for Mining, Metallurgy, and Exploration, Littleton, Colorado, pp. 61-78. 

Sadiq, M., Locke, A., Spiers, G. and Pearson, D.A.B. (2002) Geochemical behavior of arsenic in Kelly Lake, Ontario. Water Air and Soil Pollution, 141(1-4), 299-312. 

Geochemical behavior of disposed radioactive waste. (ACS symposium series, ISSN 0097-6156 246)... 

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