著者

白水 晴雄 小川 留太郎 田中 信也 宮久 三千年

出版者

日本鉱物科学会

雑誌

岩石鉱物鉱床学会誌 (ISSN:00214825)

巻号頁・発行日

vol.46, no.6, pp.191-195, 1961

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Brucite from Sasaguri occurs as foliated or fibrous aggregates, associating with calcite and yellowish serpentine. H=2.5; S.G=2.475; ω=1.562, ε=1.581. Chemical analysis gives: SiO₂ 0.33, Al₂O₃ 0.08, Fe₂O₃ 1.69, MgO 64.81, MnO 1.10, H₂O(-)0.39, H₂O(+)31.38, total 99.78. X-ray powder data and D. T. A. curve are also given. The mineral seems to have been formed under hydrothermal condition.

著者

宮久 三千年 石橋 澄 足立 富男

出版者

日本鉱物科学会

雑誌

岩石鉱物鉱床学会誌 (ISSN:00214825)

巻号頁・発行日

vol.70, no.1, pp.25-29, 1975

被引用文献数

3

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Malayaite is found in the contact skarn zone of Toroku mine, Miyazaki Prefecture. The crystals are commonly granular to massive shape, but sometime crystals show platy to wedgelike aspect, which reach to 3cm in length. Color is white to greenish gray. Luster is resinous. Fluoluminescence of greenish yellow color is observed, when on ultraviolet ray. The refractive indices are <i>&alpha;</i>=1.764, <i>&beta;</i>=1.784-1.786, <i>&gamma;</i>=1.801 and 2V (+) 84-86.<br> Chemical formula calculated from the analysis is:<br> Ca_0.978Sn_0.980Ti_0.002 Si_1.002O_5.000<br>which is in good accord with Ca (Sn, Ti) SiO_5.000 of sphene-malayaite series.<br> Genetic considerations of ore-forming minerals, and problems of tin-mineral dressing are also discussed in this paper.

著者

宮久 三千年

出版者

資源地質学会

雑誌

鉱山地質 (ISSN:00265209)

巻号頁・発行日

vol.12, no.56, pp.317-323, 1962

被引用文献数

1

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The contact metasomatic and the vein-type ore deposits of the Shin-Kiura tin mine have been worked since old times for tin, silver, arsenic and copper. These are characterized by complex mineralization at a wide range of temperature related to the Tertiary granitic intrusion. Recently, lollingite-cassiterite-quartz-wollastonite vein-like deposits, containing native gold, native bismuth and tellurobismuthite, have been found in the Uriya-Kaneko adit of this mine.<BR>In this paper, mineragraphy of the Au-Te-Bi-As ore is presented, and genesis of the similar mineralizations in Japan is discussed.

著者

宮久 三千年 木下 龜城 富田 達

出版者

日本地質学会

雑誌

地質學雜誌 (ISSN:00167630)

巻号頁・発行日

vol.59, no.694, 1953-07-25

著者

宮久 三千年 原田 進造 石橋 澄 渋谷 五郎 本村 慶信

出版者

資源地質学会

雑誌

鉱山地質 (ISSN:00265209)

巻号頁・発行日

vol.25, no.133, pp.347-357, 1975

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In this paper, the paragenesis of minerals in the Hoei mine is presented with some remarks on the mineralogical properties of kutnahorite.<BR>The Ichigo (no.1) ore body of the Hoei mine is a massive deposit of Sn, Zn and iron sulfide formed by replacement of the Silurian limestone bed. From this ore body, there have been found various kinds of ore and gangue minerals such as: garnet, clinopyroxene, axinite, tourmaline, vesuvianite, quartz, pyrrhotite, chalcopyrite, arsenopyrite, pyrite, marcasite, sphalerite, galena, native bismuth, herzenbergite, franckeite, jamesonite, cassiterite, stannite, malayaite, fluorite, sericite and carbonate minerals. The species of carbonate minerals are ferromanganoan dolomite, magnesian kutnahorite, kutnahorite, calcian rhodochrosite, ferroan magnesite and manganoan calcite, and they have been crystallized at the later stage of mineralization in this mine.<BR>The kutnahorite in this mine is white, yellow or pinkish in color, and platy or leaf-like in external shape, reaching to 5 cm in maximum length. Its specific gravity ranges from 2.98 to 3.18 by picnometer method. Optically negative, and some examples of refractive indices are &omega;=1.717-1.731, &epsilon;=1.524-1.529. Unit cell constants, a<SUB>0</SUB> = 4.861-4.869 &Aring;, c<SUB>0</SUB>=16.24-16.37 &Aring;. The range of chemical composition of kutnahorite is fairly wide, as shown in Table 4 and 5.<BR>Judging from the mode of occurence, microscopic observations and the compositional changes detected by EPMA, the crystallization sequence of the carbonate minerals is suggested as follows : dolomite-ferromanganoan dolomite-magnesian kutnahorite-kutnahorite-calcian rhodochrosite-manganoan calcite.

著者

牟田 邦彦 宮久 三千年

出版者

九州大学大学院工学研究院

雑誌

九州大学工学集報 (ISSN:00232718)

巻号頁・発行日

vol.25, no.1, pp.17-21, 1952-10

著者

宮久 三千年

出版者

石灰石鉱業協会

雑誌

石灰石 (ISSN:02873761)

巻号頁・発行日

no.75, 1962-01

著者

宮久 三千年 野田 雅之

出版者

日本鉱物科学会

雑誌

鉱物学雜誌 (ISSN:04541146)

巻号頁・発行日

vol.6, no.6, pp.349-360_2, 1964

著者

広渡 文利 宮久 三千年

出版者

資源地質学会

雑誌

鉱山地質 (ISSN:00265209)

巻号頁・発行日

vol.5, no.16, pp.95-101, 1955

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Jacobsite, with chemical composition MnFe<SUB>2</SUB>O<SUB>4</SUB>, belonging to magnetite series of spinel group, has been found in the manganese deposits from the Kiuragi Mine, about 15 kilometers west of Saga-City, Kyushu, Japan. This mineral is fine-grained and in tephroite ores associated with rhodonite, spessartine, rhodochrosite and a small amount of penwithite. It shows the following characters;<BR>Colour is magnetite-like iron black with metallic luster. Streak, blackish brown. Strongly magnetic. Hardness, 6&plusmn; In thin section this mineral is opaque, usually associated with galaxite which shows close similarity in crystal structure. In the polished section it is greyish white with olive tint. Standard etch reactions are negative except that of HCl(conc.)+SnCL<SUB>2</SUB>.<BR>Its X-ray powder pattern is in very close agreement with those of jacobsite from Jacobsberg and artificial MnFe<SUB>2</SUB>O<SUB>4</SUB>. Analysed specimens contain a small amount of galaxite (5.46% wt.). Analytical results are as follows; SiO<SUB>2</SUB> tr., Fe<SUB>2</SUB>O<SUB>3</SUB> 56.19, MnO 29.34, MgO 0.10, CaO 0.13, TiO<SUB>2</SUB> 3.37, AL<SUB>2</SUB>O<SUB>3</SUB> 11.62, BaO none, total 100.75. After deducing MnAL<SUB>2</SUB>O<SUB>4</SUB> for galaxite as impurities, the chemical formula can be written as (Mn, Fe<SUP>II</SUP>, Ca, Mg)<SUB>0.990</SUB> (Fe<SUP>II</SUP>I, Al, Ti)<SUB>1.950</SUB>O<SUB>4.000</SUB>. A precise determination of the lattice dimension by the extrapolation-method gave 8.452&plusmn;0.004A.

著者

宮久三千年

雑誌

九州鉱山学会誌

巻号頁・発行日

vol.20, pp.265-269, 1952

被引用文献数

2

著者

宮久三千年

雑誌

三鉱学会昭和51年秋期講演要旨

巻号頁・発行日

vol.58, 1976

被引用文献数

2

著者

松隈 寿紀 宮久 三千年

出版者

日本鉱物科学会

雑誌

岩石鉱物鉱床学会誌 (ISSN:00214825)

巻号頁・発行日

vol.41, no.3, pp.89-97, 1957

著者

宮久 三千年

出版者

地学団体研究会

雑誌

地球科学 (ISSN:03666611)

巻号頁・発行日

vol.1955, no.23, pp.15-24, 1955

被引用文献数

1

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This Paper outlines some geological problems on the Obira tin deposit which belongs to a complex telescoped type. The deposit is genetically related to the acid intrusives of Miocene epoch. Some considerations of granitic rocks as oie bringer of mineral deposits, are also discussed.

著者

松隈 寿紀 宮久 三千年

出版者

日本鉱物科学会

雑誌

岩石鉱物鉱床学会誌 (ISSN:00214825)

巻号頁・発行日

vol.41, no.5, pp.173-180, 1957

著者

松本 征夫 宮久 三千年

出版者

日本地質学会

雑誌

地質学雑誌 (ISSN:00167630)

巻号頁・発行日

vol.79, no.2, pp.99-111, 1973

被引用文献数

1 5

著者

宮久 三千年

出版者

九州大学大学院工学研究院

雑誌

九州大学工学集報 (ISSN:00232718)

巻号頁・発行日

vol.25, no.2, pp.51-55, 1953-02

著者

松隈 壽紀 宮久 三千年

出版者

日本地質学会

雑誌

地質学雑誌 (ISSN:00167630)

巻号頁・発行日

vol.58, no.678, pp.111, 1952

著者

宮久 三千年 鹿島 愛彦

出版者

資源地質学会

雑誌

鉱山地質 (ISSN:00265209)

巻号頁・発行日

vol.17, no.84, pp.214-227, 1967

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Dolomite deposits of western Shikoku are distributed in some definite stratigraphic and geotectonic zone. They are classified into the following group.<BR>1) Siliceous dolomite deposits of the northern zone of upper Carboniferous in age. These deposits are associated with red tuff, red chert, and other clastic sediments of volcanic materials.<BR>2) Some workable dolomite deposits of the southern zone of lower Triassic Uonashi formation, independent of volcanic activities.<BR>Chief factors of the formation of dolomite are temperature, pH, Eh and concentration of Mg-ion in the sea-water of geosynclinal basin. These factors are related to some paleogeographical environments, such as submarine volcanism (Northern zone) and development of shallow sedimentary basin of nearshore line (Southern zone).<BR>Chemical compositions of mineral dolomites, mechanism of dolomitization, deformation and recrystallization of ores, and relation of dolomite bed to other submarine sedimentary ore deposits are also discussed in this paper.

著者

宮久 三千年

出版者

愛媛大学

雑誌

愛媛大学紀要 D 自然科学 (ISSN:04227727)

巻号頁・発行日

vol.6, no.3, pp.59-72, 1970-12

著者

宮久 三千年 浜田 俊三

出版者

一般社団法人 日本地質学会

雑誌

日本地質学会学術大会講演要旨 (ISSN:13483935)

巻号頁・発行日

vol.1973, 1973