New method for making petrographic sections of fragile rocks without using liquids as coolants or lubricants‒dry method‒

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  • 新開発乾式法による脆弱岩石試料の薄片・研磨薄片製作
  • シン カイハツ カンシキホウ ニ ヨル ゼイジャク ガンセキ シリョウ ノ ハクヘン ・ ケンマ ハクヘン セイサク
  • New method for making petrographic sections of fragile rocks without using liquids as coolants or lubricants dry method

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Abstract

It is difficult to make thin sections of fragile and unstable specimens that contain sulfur, clay, salt, and water by applying the conventional method in which water and oil are used. Although such liquids protect samples from the heat generated during the cutting and grinding processes, they can also damage samples, for example, due to expansions. As a solution to this problem, a new method in which liquids are not used and frictional heat is minimized has been developed; in short, samples are not influenced by liquid and heat in this new method. This method enables to make easily the least damaged thin sections of such fragile samples. Further, this method can be adapted for even complex samples that contain both hard and soft minerals, and thus helps researchers obtain all possible information that can be obtained from the samples.

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