河守鉱山産硫化鉱物および付近の火成岩類中の微量元素の地球化学的研究
1964 年 14 巻 63 号 p. 48-57
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1964 年 14 巻 63 号 p. 48-57
The minor elements in sulphide ores composed of pyrrhotite, chalcopyrite, cubanite and sphalerite from the Komori mine and those in igneous rocks from the Komori mining district were analyzed by spectrographic method.
The minor elements of Mn, In, So, Bi, Ag and Ni are detected generally in each sulphide mineral, and among these Mn, In, Sn, and Bi are charactrized by high contents, Ni and Co in pyrrhotite and Cd in sphalerite are recognized in high contents, but Ag shows no variation of content with the kindd of sulphide minerals.
The distribution of these elements shows the similar tendency in sulphide minerals from the high temperature type deposits related to acidic magma rather than to basic magma.
This will suggest that the ore deposit in the ultrabasic rocks of the Komori mine is genetically related to from acidic magma.
In the igneous rocks, Ba and Sr increase and Ni, Cr and Co decrease in contents from basic to acidic rocks.
