巻号一覧
3 巻 (1963)
- 1-2 号 p. 179-
3 巻, 1-2 号
選択された号の論文の8件中1～8を表示しています
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生沼 郁, 児玉 秀臣, 小林 和夫1963 年 3 巻 1-2 号 p. 179-193
発行日: 1963/11/01
公開日: 2011/09/20
ジャーナル フリーThere are some ambiguous points to identify clay minerals. One of them is difficulty of identifing kaolin and chlorite minerals in its mixture and/or complex clay mineral mixtures. This difficulty is mainly caused by overlapping of (OOL) reflection of kaolin minerals and chlorite. The writers have been examined and discussed many methods of identification such as; differential thermal analysis, X-ray analysis, infra-red analysis, and electron microscopic technique. Differential thermal analysis is effective for discrimination of kaolin minerals. In X-ray analysis, it is required many treatment such as; heat and reagent treatments. After heating sample to 500-800°C, increasing of 14 Å reflection intensity shows presence of chlorite. Effect of treatment with hydrochloric acid is examined for differentiation between kaolin and chlorite minerals. According to investigation of infra-red spectra of many clay minerals, kaolin minerals have a characteristic triple band in OH region. In the triple band, the band near 3695 cm-1 is noticed to be effective for determination of kaolin minerals.
Combined use of these experimental methods was proved to be very effective, as the shortcomings of each method may be compensated each other. In conclusion, table for identification of kaolin and chlorite minerals was shown.抄録全体を表示PDF形式でダウンロード (951K) -
小林 和夫, 生沼 郁1963 年 3 巻 1-2 号 p. 194-204
発行日: 1963/11/01
公開日: 2011/09/20
ジャーナル フリーMineralogical study on clay minerals was carried on about 650 samples from Recent marine sediments and sedimentary rocks. Confirmation of kinds of clay minerals and their quantitative estimation were carried by means of X-ray powder diffraction data obtained from well-oriented powder slide, which were prepared by natural specimen, those heated at every temperatures, those treated by ethylene glycol, hydrochloric acid, ammonium nitrate solution, and magnesium acetate solution.
Recent marine sediments: Montmorillonite, chlorite, illite, hydrated halloysite, and a small amount of kaolinite were found in these sediments. In shallow water sedimnts clay mineral compositions show some variation from region to region. Composition of clay minerals in shallow water sediments is found to be affected by source materials and water movements. The samples in deep-sea sediments generally have the same clay mineral composition, and no marked difference was found between successive levels in the core samples.
Tertiary sedimentary rocks: Montmorillonite, chlorite, hydrated illite, illite, kaolinite, and mixed layer mineral of montmorillonite and illite were found in these sedimentary rocks. Each locality has a characteristic clay mineral composition. In Ishikari coal-field, there is a great difference of clay mineral composition between upper and lower formation at unconformity.
Mesozoic sedimentary rocks: The specimen are composed of chlorite and illite. The relative amounts of them somewhat vary from region to region. Al-vermiculite and Al-montmorillonite were found in a weathered sample.
Palaeozoic sedimentary rocks: Clay minerals were mainly chlorite and illite. They were generally well crystallized sorts.抄録全体を表示PDF形式でダウンロード (937K) -
杉浦 精治, 中野 寿1963 年 3 巻 1-2 号 p. 205-210
発行日: 1963/11/01
公開日: 2011/09/20
ジャーナル フリーFireclay was found at Togi Mine, which, is a lignite mine in the southwestern part of Noto Peninsula.
The present authors investigated the nature of this clay, such as refractoriness, chemical composition, mineralogical component, d. t. a., electron micrograph, etc. The refractoriness of the clay is about SK 34-29 (1, 750°C-1, 650°C). Chemical composition is SiO2 43.72, TiO2 0.49, A12O3 35.68, Fe2O3 2.92, MgO 0.47, CaO 0.62, Na2O 1.05, K20 0.40, Ig. loss 13.08, Total 98.43%. Clay minerals are composed dominantly of disordered kaolinite and partly of illite and montmorillonite. The d. t. a. curves show an endothermic peak at near 560°C and an exothermic peak at 940°C.
The properties of Togi Clay are resemble to those of “Kibushi-Clay” but the former has a higher iron content than the latter.抄録全体を表示PDF形式でダウンロード (5406K) -
生沼 郁, 児玉 秀臣1963 年 3 巻 1-2 号 p. 211-221
発行日: 1963/11/01
公開日: 2011/09/20
ジャーナル フリーClay mineral specimens used in this study were kaolin mineral (8), illite (14), montmorillonite (6), chlorite (4), vermiculite (4) and non-clay minerals (11). Specimens were prepared as mull in nujol and mounted between sodium chloride cover slides. The infra-red spectra of such various kinds of clay minerals have been examined in the region 3800-700cm-1. Especially, the spectra in the region 3800-3200cm-1 were obtained by using Graing Spectrophotometer having excellent resolution power. From the spectra, the character of absorption bands of each clay mineral was discussed.抄録全体を表示PDF形式でダウンロード (900K) -
青木 正治, 米満 澄1963 年 3 巻 1-2 号 p. 222-227
発行日: 1963/11/01
公開日: 2011/09/20
ジャーナル フリーWe have newly developed such a special thermobance as permits both DTA and TGA under the same operating conditions; that is, DTA and TGA can be done with one same specimen.
With this new equipment, it is possible to make direct comparison between DTA curve and TGA curve. Therefore, comparing the DTA curve with the DTG curve on the dehydration of kaolin minerals at near 500°C by the simultaneous measurement, it may be conlcuded that their curves are similar to each other.
From their weight loss curves obtained by the dynamic method, the percentage, the reaction order and the activation energy of their dehydration, and by measuremnt of their specific heat, the temperature and the energy of their reactions are calculated.抄録全体を表示PDF形式でダウンロード (648K) -
木崎 喜雄1963 年 3 巻 1-2 号 p. 228-238
発行日: 1963/11/01
公開日: 2011/09/20
ジャーナル フリーMany acidic tuff beds have been intercalated in the Tertiary formation of the Kabura River and the Usui River district, the southern part of Gunma Prefecture. Most of the X-ray Powder diffraction diagrams of the tuff specimens, colleted from various outcrops in this area, reveal the diffraction peaks of clinoptilolite. Besides this zeolite, other alteration minerals, like as analcime, montmorillonite, celadonite, glauconite, and the others, occur in these tuff. Generally speaking, in the western part of this area montmorillonitization predominates, where some bentonite deposits are located. While, in the middle and easterm parts, zeolitization predominates. In the tuffs intensely zeolitized, the core of glass shards has been replaced by the aggregate of platy or prismatic crystals of clinoptilolite, and the outer rim of glass shards altered to the thin film of montmorillonite. But fine glass, like as volcanic dust and glass fibre, has mostly altered to montmorillonite. The alkali content of zeolitic tuffs is higher than that of montmorillonitic ones. The mode of occurrence of clinoptilolie in this area, above mentioned, may suggest that this zeolite is the diagenetic alteration product after volcanic glass, the alkalies of which had not been markedly leached by marine water or/and connate water. From the standpoint of mineral assemblage, the Tertiay formation of this area corresponds to the heulanditeanalcime stage of zeolite facies.抄録全体を表示PDF形式でダウンロード (11398K) -
高橋 浩, 西土井 睦1963 年 3 巻 1-2 号 p. 239-245
発行日: 1963/11/01
公開日: 2011/09/20
ジャーナル フリーThe exchange-adsorption of radioactive strontium-90 and cesium-137 in batch system by zeolititic tuff from Kawarago, Shiroishi, Miyagi Prefecture was studied. The relation between the affinity of both radioactive cations anp the form of exchangeable cation of adsorbent was researched in sodium chloride solution. In general, the mono-valent forms show the selectivity for strontium-90 except H-form, while the divalent forms do not show so remarkable selectivity. H-form only shows the highest selectivity for cesium-137. Moreover, zeolitic tuff show the higher capacity for these both cations than other clay minerals, for example, kaolinite or montmorillonite. Since the zeolitic tuff is relatively soft mineral and swells very little in water, it is very effective and economical to apply it for the treatment of radioactive aqueous waste.抄録全体を表示PDF形式でダウンロード (539K) -
児玉 久, 古里 功1963 年 3 巻 1-2 号 p. 246-265
発行日: 1963/11/01
公開日: 2011/09/20
ジャーナル フリーTorai “Roseki” clay, in spite of the low refractoriness, is favoured for industrial uses, due to its special characteristics, and has been pretty much imported as one of the refractory raw materials for firebrick of iron furnaces. The dominant mines under working are Shokiri and Rinkiri in Tesuba-men, Torai-gun, Keisho-nan-do. The clay deposits are of hydrothermal origin and assume bedded form, which is roughly conformable to the sedimentary beds of tuffs, breccia-tuffs, sandstones and shales of Mesozoic age. The clay in principally composed of sericite flakes annexed by quartz grains, and contains little pyrophyllite. Occassionally, kaolin minerals, andalusite and dumortierite are accompanied. As the impurities, pyrite, tourmaline and chlorite are common, and their relative abundance in the clay specify its quality. The clays of the mentioned two mines are somewhat different from each other with many common charactcristics.抄録全体を表示PDF形式でダウンロード (22224K)
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