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Calculation of simultaneous isotopic and trace element variations during water-rock interaction with applications to carbonate diagenesis.
The heat stable factor which effects these increases in growth could be a specific ion or a trace element.
Major and trace element abundances were measured on fused discs and pressed pellets, respectively.
We use trace element geochemistry to constrain the protolith source of the amphibolites.
The effect of crustal contamination on lava compositions is most readily apparent in major and trace element data.
An amelioration of body weight gain, reduction of mortality and restoration of trace element levels were estimated in infected chickens.
Based on petrographical investigations, 44 representative samples were selected for major and trace element analyses.
The trace element variation within groups is very small.
Copper is an essential trace element but most diets contain a little more copper than is needed.
Identification of petrogenetic processes using covariance plots of trace element data.
Appendices provide clearly tabulated data on major and trace element analyses for all the samples discussed in these chapters.
It exhibits a wide trace element compositional range.
We therefore suggest that the analysed part of the gabbroic pegmatite represents a 'cumulate' from which an incompatible trace element-enriched melt has escaped.
Representative basalt samples were selected for major and trace element analysis, excluding those with obvious alteration.
The changes in major and trace element composition of the samples are very complex and seem not to change systematically.