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静岡大学地球科学研究報告 (1975-) >
1996 23 >

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タイトル: 混合酸による変成岩・火成岩の分解法の改善及びそれらの主要元素(珪素を除く)の定量
その他のタイトル: An improved method for digestion of metamorphic and igneous rocks by mixed acids, and the determination of major elements (except Si)
著者: 藤吉, 瞭
楠, 賢司
鈴木, 理恵
掲載誌名: 静岡大学地球科学研究報告
出版者: 静岡大学地球科学教室
巻: 23
開始ページ: 57
終了ページ: 62
出版日付: 1996-07
NDC: 458
抄録: Metamorphic rocks (consisting of anorthositic rocks and pelitic, basic and quartzfeldspathic gneisses) and igneous rock reference samples of the Geological Survey of Japan (GSJ) were decomposed with mixed acids by the method of Crock and Severson. The basic and quartz-feldspathic gneisses and the GSJ igneous rock reference samples totally dissolved, but the anorthositic rocks and pelitic gneisses commonly left residues. To get a clear solution of these rocks, Crock and Severson's method was modified : better results were obtained by repeated drying of the residues by adding a mixed solution of HCI and HCIO_4,with a little more water in the process of the expulsion of residual fluorine, instead of HCIO_4 and water. The contents of Al, Fe, Mg. Ca, Ti, Mn and P in the metamorphic rocks and the GSJ igncous rock reference samples were determined by means of an inductively coupled argon plasma/optical emission spectrophotometer, and the Na and K contents by atomic absorption spectrometry. The results of chemical analyses for the metamorphic rocks and JGS igneous rock reference samples decomposed by the modified method show the following things : the anorthositic rocks and pelitic gneisses show an increase of about 1-4 percent in the total amount of element oxides and about 4-9 percent in its increased total yield; the other rocks, especially the basic gneisses and basalts, tend to show a small increase in their total amount of elemental material, compared with those decomposed by Crock and Severson's method.
ISSN: 03886298 OPAC
NII論文ID: 110000413373 ciniia
NII書誌ID: AN00103190 OPAC ciniib
バージョン: publisher
出現コレクション:1996 23

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Others By: 藤吉, 瞭 (フジヨシ, アキラ) (Fujiyoshi, Akira) -- 楠, 賢司 (クスノキ, ケンジ) (Kusunoki, Kenji) -- 鈴木, 理恵



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