Development of the Early Continental Crust. Part 1. Use of Trace Element Distribution Coefficient Models for the Protoarchean Crust

1972 ◽  
Vol 9 (12) ◽  
pp. 1577-1595 ◽  
Author(s):  
Denis M. Shaw
Keyword(s):  
Distribution Coefficient ◽  
Trace Element ◽  
Continental Crust ◽  
Fractional Crystallization ◽  
Distribution Coefficients ◽  
Element Distribution ◽  
Trace Element Distribution ◽  
Measured Distribution

The original continental crust developed as the residue from fractional crystallization of the mantle–crust system. Using measured distribution coefficients for K, Rb, Ba, Sr, La, Ce, Eu, Yb, and Ni, several crystallization models are tested for conformity with regional geochemical estimates of continental crustal composition.In spite of the uncertainties and approximations the predicted concentrations agree reasonably well with observation, except in the case of Yb.

Trace element distribution coefficients in alkaline series

1987 ◽  
Vol 51 (5) ◽  
pp. 1071-1081 ◽  
Author(s):  
Fabienne Lemarchand ◽  
Benoît Villemant ◽  
Georges Calas
Keyword(s):  
Trace Element ◽  
Distribution Coefficients ◽  
Element Distribution ◽  
Trace Element Distribution

scholarly journals Determination of aragonite trace element distribution coefficients from speleothem calcite–aragonite transitions

2016 ◽  
Vol 190 ◽  
pp. 347-367 ◽  
Author(s):  
J.A. Wassenburg ◽  
D. Scholz ◽  
K.P. Jochum ◽  
H. Cheng ◽  
J. Oster ◽  
...  
Keyword(s):  
Trace Element ◽  
Distribution Coefficients ◽  
Element Distribution ◽  
Trace Element Distribution

Methylmercury and Trace Element Distribution in the Organs of Stenella coeruleoalba Dolphins Stranded on the French Mediterranean Coast

2014 ◽  
Vol 8 (1) ◽  
pp. 35-48 ◽  
Author(s):  
Emmanuel Wafo ◽  
Véronique Risoul ◽  
Thérèse Schembri ◽  
Véronique Lagadec ◽  
Frank Dhermain ◽  
...  
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Marine Pollution ◽  
Element Distribution ◽  
Mediterranean Coast ◽  
Trace Element Distribution ◽  
Slight Reduction ◽  
Stenella Coeruleoalba ◽  
Contamination Levels

The main objective of this study was to evaluate the contamination by mercury (Hg), methylmercury (Me-Hg), cadmium (Cd), selenium (Se), zinc (Zn), copper (Cu), iron (Fe) and manganese (Mn) in dolphins stranded on the French Mediterranean coast. The distributions of these contaminants in the organs of dolphins have also been studied. Overall, contamination levels varied according to the following sequence: liver > kidney > lung > muscle, except for cadmium (kidney > liver > lung > muscle). Size and sex of animals were also considered. Young dolphins were less impacted with trace elements than adults, except for copper. Among the studied parameters, the most important appeared to be the size of mammals. In addition, in the case of mercury and selenium, the sex of mammals seemed to be also relevant. The correlations between the concentrations of trace elements suggest the existence of detoxification processes. Since 1990s, using dolphins for tracing marine pollution, a slight reduction in the burden of the considered trace elements could be noted.

TRACE-ELEMENT DISTRIBUTION IN GIANT SPODUMENE CRYSTALS IN GRANITIC PEGMATITES FROM THE BLACK HILLS, SOUTH DAKOTA AND NEWRY, MAINE

2019 ◽  
Author(s):  
Stephan R. Hlohowskyj ◽  
◽  
Mona-Liza C. Sirbescu ◽  
James J. Student ◽  
Niels Hulsbosch ◽  
...  
Keyword(s):  
South Dakota ◽  
Trace Element ◽  
Element Distribution ◽  
Black Hills ◽  
Trace Element Distribution ◽  
Granitic Pegmatites

Trace element distribution in mineral inclusions in zoned garnets from eclogites of the Atbashi Range (South Tianshan)

2014 ◽  
Vol 52 (11) ◽  
pp. 939-961 ◽  
Author(s):  
N. I. Volkova ◽  
S. V. Kovyazin ◽  
S. I. Stupakov ◽  
V. A. Simonov ◽  
K. S. Sakiev
Keyword(s):  
Trace Element ◽  
Element Distribution ◽  
Trace Element Distribution ◽  
Mineral Inclusions ◽  
South Tianshan
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