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花岡鑛山
神山の鑛床

地学雑誌
1927年 39 巻 9 号 553a-554
発行日: 1927/09/15
公開日: 2010/12/22

DOI https://doi.org/10.5026/jgeography.39.553a

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二,三の黒鉱式鉱床の変質帯の鉱物学的研究

林久人

鉱物学雜誌
1961年 5 巻 2 号 101-125
発行日: 1961/03/20
公開日: 2010/02/08

DOI https://doi.org/10.2465/gkk1952.5.101

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花岡鉱山
松峰鉱床の探査について

虎岩達夫, 橋口博宣

鉱山地質
1967年 17 巻 84 号 179-189
発行日: 1967/08/20
公開日: 2009/06/12

DOI https://doi.org/10.11456/shigenchishitsu1951.17.84_179

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The largest black ore deposit in Japan was discovered in the Hanaoka mine, Akita Pref., during June 1963 to May 1966. The ore confirmed by drilling amounts to about 30 million tons, and it was named the Matsumine Ore Deposit. The authors describe history of discovery, exploration and development for this deposit. The ore deposit was syngenetically emplaced within the intermediate to acidic volcanic rocks, especially in these pyroclastic rocks of the Miocene age. It consists successively of gypsum body, pyrite ore, copper-pyrite ore (yellow ore), and zinc-lead-copper-pyrite ore (black ore) from the lower to the upper. The deposit extends horizontally up to 500m from east to west and 800m from north to south. The depth is about 200m to 300m below the surface. It shows generally a shape of blanket.
Underneath the blanket ore body occurs siliceous ore, or white altered rhyolite and its breccia-tuff. Above the black ore lies a clay bed or ferruginous, quartz-clay bed which is in turn. overlaid by the mudstone layer (M2). These geological successions are closely similar to those of the main deposits of the Hanaoka and Kosaka mines.
Until 1955 the prospecting in these mines was done with the conception that black ore deposits were formed epigenetically hydrothermal replacement. The detailed geological investigations, however, brought about such a working hypothesis that the deposit might be formed by syngenetic and hydrothermal sedimentary processes. Thus, extensive drillings on the basis of this hypothesis has led to discovery of the "Matsumine Ore Deposit".
It is now expected that more ore bodies may be discovered similarly in this district by refinement of the working hypothesis and exploration technique.
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花岡鉱山
松峰坑

藤原滋郎, 佐藤久三夫

日本鉱業会誌
1967年 83 巻 956 号 1853-1857
発行日: 1967/12/25
公開日: 2011/07/13

DOI https://doi.org/10.2473/shigentosozai1953.83.956_1853

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花岡鉱山
餌釣坑

津村和広, 木村曠

日本鉱業会誌
1984年 100 巻 1160 号 910-913
発行日: 1984/10/25
公開日: 2011/07/13

DOI https://doi.org/10.2473/shigentosozai1953.100.1160_910

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Ezuri deposits are situated at the outskirts of Odate City. It takes 20 minutes by car to reach the mine office from Odate Station. The are deposits are distributed in the area of 500 meters east to west, and 2, 500 meters north to south. They belong to Kuroko Mineral Belt, and consist of black ore, yellow are and siliceous are like the other deposits previously discovered in this area.
The development work was started in October, 1977. The mine came into production in October, 1979 utilizing a fully trackless system, and has steadily increased the production rate from an initial 6, 000 tons/month to the present level of 10, 000 tons/month. Today, the grade of crude are is 155g/t Ag, 1.43% Cu, 2.8% Pb, and 7.8% Zn.
The mining method applied is “The underhand cut and fill with artificial roofing” combined with a trackless system.
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花岡鉱山
深沢坑

津村和広, 西田米治

日本鉱業会誌
1984年 100 巻 1160 号 905-910
発行日: 1984/10/25
公開日: 2011/07/13

DOI https://doi.org/10.2473/shigentosozai1953.100.1160_905

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Fukasawa Mine is located in Odate City, Akita Prefecture. The orebodies are typical stratified Kuroko deposits, and weredi scovered in August 1969. They lie in a steep mountain site at a depth of 400 meters, and extend over an area of approximately 1.5km×1.0km with a thickness of 5 meters. The production and exploration are being conducted by 130 company employees and 60 contractors.
The mine is operated with a fully trackless system. The mining method applied is “The underhand cut and fill with artificial roofing”. 22 drift headings are generally being worked on to produce 28, 000 tons/month of crude are with a grade of 0.89% Cu, 2.44% Pb, 8.39% Zn and 84.8 g/t Ag, and drive 250 meters/month of development drift. These drift drivings progress in cycles of drilling and blasting, mucking, and timber supporting. One of two parallel ramps with a length of 2.2 kilometers is used for the mine service. A conveyor for are and waste transportation to the surface is installed in the other ramp. Underground trucks are used for the transportation from local loading points to main are bins.
In the last few years, Fukasawa Mine has accelerated the reconstruction of underground facilities, the expansion of pro-duction rate and underground exploration work, as well as the development and modernization of its mining machinery. In addition to the scale up of loaders, compact cross-cut jumbos and timbering machines were developed in the mine. To take full advantage of these machines and improve the overall efficiency of the operation, a wireless communications equipment combined with a personal computer was installed in its underground operation in early 1983. The mining system based on the communications equipment has been called the Mine On-line System (abbreviated to MOS).
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花岡鉱山
松峰坑

浅海宣慶, 大槻晃義

日本鉱業会誌
1984年 100 巻 1160 号 900-904
発行日: 1984/10/25
公開日: 2011/07/13

DOI https://doi.org/10.2473/shigentosozai1953.100.1160_900

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Matsumine deposit, located in the northern part of Odate basin, Akita Prefecture, is a large scale Kuroko deposit. This deposit was discovered in 1963. The development work was started in July 1964, and the production was started in October 1966, at the rate of 20, 000 tons/month. Current production rate is 40, 000 tons/month, and it is the largest copper supplier in Japan.
The Kuroko generally consists of black ore, yellow ore (cupriferous pyrite ore) and siliceous ore. The black ore (Kuroko) is a black coloured ore consisting mainly of sphalerite, garena and barite, and rich in gold and silver, too. The yellow ore is a yellow massive powdery ore comprising mainly chalcopyrite and pyrite. The siliceous ore which is rich in silica is divided into two types, one containing considerable amount of chalcopyrite and pyrite, and the other with a high sphalerite content.
The mining method applied is “The underhand cut and fill with artificial roofing”. Once a unit block of ore is mined out in a stope, iron reinforcing bars are laid on the floor, and a 15 percent cemented mortar mixed with mill tailings and volcanic ash is pumped over the bars up to 0.6 meter thickness. Then, the space above the layer is filled with the 3 percent cemented sand slime. This reinforced mortar serves as an artificial roof when ores below are mined next. In 1982, the conventional battery locomotive and tub system was partly replaced by the trackless system with L. H. D.
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堂屋敷鉱床東部硫化鉱体の長孔発破設計について

森吉恒夫, 神野孝行

日本鉱業会誌
1956年 72 巻 821 号 617-622
発行日: 1956/11/25
公開日: 2011/07/13

DOI https://doi.org/10.2473/shigentosozai1953.72.821_617

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We have applied the long hole blasting to the mining method for low grade pyrite ore body. And we have succeeded in the application of block caving method to breaking pyrite ore body which was difficult to mine according to caving, collapse and underground water.
The plan of long hole blasting is based upon a linear charge originated in short diameter long holes against the theory of a concentrated charge, therefore we have arranged the line of least resistance and spacing of holes adaptable for a linear charge without cushioning.
At the plan of blasting of block caving method, perfect-fanshaped arrangement of holes by symmetrical drilling chambers was suitable for weak and brittle conditions of ore body from our results.
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公害問題と買鉱制度 :
花岡鉱山
煙害問題を中心に

岡田有功

土地制度史学
1996年 38 巻 2 号 38-48
発行日: 1996/01/20
公開日: 2017/12/30

DOI https://doi.org/10.20633/tochiseido.38.2_38

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花岡鉱山
堂屋敷坑

長谷川辰男, 藪内栄造

日本鉱業会誌
1967年 83 巻 956 号 1848-1852
発行日: 1967/12/25
公開日: 2011/07/13

DOI https://doi.org/10.2473/shigentosozai1953.83.956_1848

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花岡鉱山
の採鉱法

往吉貞之

日本鉱業会誌
1957年 73 巻 832 号 718-723
発行日: 1957/10/25
公開日: 2011/07/13

DOI https://doi.org/10.2473/shigentosozai1953.73.832_718

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The ore of Hanaoka Mine is complex one, which is typical of so called “Black Ore”. The products are copper, pyrite, lead, zinc, gypsum, barite. The geological features control in mining methods are:
1. The ore bodies lie under river level.
2. The alluvium contains water bearing gravel strata, acting like “quick rand”,
3. The ore bodies distributed in an area of several -kilometers are apparently in massive state and their diameters ranging from several tens to handreds meters and they are surrounded byclayish soap stone, soft green tuff, or cut acrossed by clayish crack and the ores are often powdery.
Accordingly, when the ore bodies have tendency to cave, so the stopes are always timbered. However, no timbering of small scale is needed _ in stoping in comparatively hard Cu-bearing pyrite or gypsum ore bodies.
Owing to the above mentioned conditions, the following mining methods had to be adopted:
1. Open-Cut mining.
2. Crosscut caving method for soft Cu-ore bodies,
3. Short-Wall top slicing method for Cu-ore bodies,
4. Under Cut Block Caving method for low grade pyrite ore bodies,
5. Underhand and Overhand Square-Set stoping with filling for high grade Cu-ore bodies,
6. Cut-and-fill stoping for pyrite ore bodies.
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写真ニュース:
花岡鉱山
(同和鉱業)

鉱山地質
1960年 10 巻 41 号 Plate1-Plate2
発行日: 1960/06/30
公開日: 2009/06/12

DOI https://doi.org/10.11456/shigenchishitsu1951.10.41_Plate1

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花岡鉱山
堂屋敷鉱床の構造規制に関する一考察

橋本綱治

鉱山地質
1956年 6 巻 21 号 143-153
発行日: 1956/09/30
公開日: 2009/12/14

DOI https://doi.org/10.11456/shigenchishitsu1951.6.21_143

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The Hanaoka mining district is located in the north part of the Odate basin, northern Akita Prefecture. The ore body of this mine is typical of the so-called "Kuroko" which are found mainly in North-eastern Japan. The Doyashiki ore Deposit ekists near the center of Hanaoka mining district and is the largest one we have ever discovered.
The ore of the deposit has been said to have formed, en mass, in rhyolitic tuff, though a few people suggested that it was partly formed in rhyolite. The writer investigated the silicious ore of the Doyashiki ore deposit and as a result found some indications, both structural and petrological, that ore was formed in rhyolite.
In this paper, the writer tries to divide structurally and genetically the Doyashiki and circumambient ore deposits into the five types listed below, and also to delineate the structural control of these deposits, assuming the intrusion of the stock of rhyolite hear the center of the Doyashiki ore deposit.
(1) Ore doposits in rhyolite.
(2) Ore doposits formed in the domed up parts in tuff by intrusion of rhyolite.
(3) Ore deposits in normal fault zone in tuff.
(4) Ore deposits in abnormal folded zone in tuff.
(5) Ore deposits formed in the parts which have combined elements of above described types. The writer believes this study will be useful for future prospectingg and mining.
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花岡鉱山
を中心とする黒鉱鉱床の基礎的研究

3.花岡鉱山鉱石の基礎的研究

堀越義一

鉱山地質
1952年 2 巻 3 号 1-16
発行日: 1952/06/20
公開日: 2010/03/04

DOI https://doi.org/10.11456/shigenchishitsu1951.2.1

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The writer reports here his studies of the fundamental characters of the three kinds of ore from the so-callad Kuroko deposits with special reference to the ores of the Hanaoka Mine. The effects of secondary sulphide enrichment are usually so strong on the deposits of this type, that black copper ores have been formed in many ore bodies of the Kuroko mines. These ores have been often called confusingly "proper. Kuroko ". For the present purpose these secondary apparent Kuroko ore are not treated in this paper.
At Hanaoka the Kuroko deposit consists of three kinds of ore, i. e., siliceous ore, yellow ore and black ore. It is very difficult to define the representative of them. From many chemical analyses of the ores, the writer calculated statistically the mean valne of the ratio of Cu, Pb and Zn of each kind of ore. The following are the results : siliceous ore… Cu : Pb : Zn=77 : 4 : 19, yellow ore… Cu : Pb : Zn=56 : 5 : 39, black ore… Cu : Pb : Zn=10 : 20 : 70.
The three kinds of ore in one ore body are found generally in the order of black ore, yellow ore and siliceous ore from the upper to the lower parts of the deposits. The grade of copper becomes gradually lower at the lower parts. This tendency of decrease of copper content, from upper to lower, is reverse to the change of the ratio of Cu : Pb : Zn. This presents a problem on the dressing of ore from the black ore deposit, from which it is said to be very difficult to get good recovery of copper at present.
The three kinds of ore were formed in order of siliceous ore, yellow ore, and, lastly, black ore. In other words the ore rich in chalcopyrite crystallized first, sphalerite-ores, next and ore rich in galena, last. Considering from data of chemical analyses of the various kinds of Kuroko ores., there seems to be some limit on the ratio of the constituent minerals such as chalcopyrite (Cu), sphalerite (Zn) and galena (Pb) in the Kuroko deposit.
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花岡鉱山
の鉱床の構造について

虎岩達夫

鉱山地質
1961年 11 巻 45-46 号 104-109
発行日: 1961/03/25
公開日: 2009/06/12

DOI https://doi.org/10.11456/shigenchishitsu1951.11.104

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The ore deposit of the Hanaoka mine is of a typical Kuroko type.
Recent exploitation revealed its bedded structure, which suffered strong folding.
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日本鑛物誌(第三版)資料(その七)

東京帝國大學鑛物學教室

岩石礦物礦床學
1935年 14 巻 5 号 240-245
発行日: 1935/11/01
公開日: 2008/03/18

DOI https://doi.org/10.2465/ganko1929.14.240

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秋田県花岡,中新世潜竜円頂丘の地質

堀越叡

地質学雑誌
1966年 72 巻 6 号 299-310
発行日: 1966/06/25
公開日: 2008/04/11

DOI https://doi.org/10.5575/geosoc.72.299

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花岡鉱山
の石膏鉱体

伊藤俊彌

鉱山地質
1963年 13 巻 58-59 号 63-69
発行日: 1963/04/30
公開日: 2009/06/12

DOI https://doi.org/10.11456/shigenchishitsu1951.13.63

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The Hanaoka-Mine is one of the typical black ore deposits and belongs to the so-called green tuff region of the Miocene, Tertiary.
The ore deposits consist chiefly of five kind of ores, that is, black ore (Sphalerite-galena-barite), yellow ore (Chalcopyrite-Pyrite), sulfide ore (Pyrite) and gypsum ore (Gypsum). There are some large scale gypsum ore deposits in the Haneoka-Mine.
The writer reports the some different occurrences of the three gypsum ore deposits, which are Bandai, Tutumi-zawa and Oishi-zawa gypsum ore deposit, from other metallic ore deposits in Hanaoka-Mine.
Generally speaking, thier occurrences, are follows. The large scale gypum ore deposits in Hanaoka-Mine
(1) have the N-S arrangement west of the Doyasiki deposit
(2) have up-lifted dome shaps
(3) don't accompany the white-coloured-rhyolite lava, as other metallic ore deposits in Hanaoka-Mine, in their lower horizon
(4) don't accompany relatively so amount of metallic ore on their uppermost
(5) have chlorite clay whenever they contain clay in them
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小坂および
花岡鉱山
黒鉱鉱床産鉱石の鉱物組成

立見辰雄, 大島敬義

日本鉱業会誌
1966年 82 巻 944 号 1008-1014
発行日: 1966/12/25
公開日: 2011/07/13

DOI https://doi.org/10.2473/shigentosozai1953.82.944_1008

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Mineral compositions of ores from the Hanaoka and Kosaka mines are calculated from the bulk chemical analyses of “Kurokôo” (black ore), “Ôkô” (yellow ore), and “Keikô” (siliceous ore) which are the most typical are types of the so-called “Kurokô deposits”. The “Kurokô” is rich in sphalerite, galena and barite with minor tetrahedrite group mineral, chalcopyrite and pyrite.The “Ôkôo” is characterized by high concentration of pyrite and chalcopyrite and is rather poor in gangue minerals. The “Keiko” is highly siliceous ore with some chalcopyrite and pyrite. These natures in mineral composition of ores from the “Kurokô deposits” are compared with those of ores from Cu veins, Pb-Zn veins and cupriferous pyrite deposits. There is found very similar tendency both in mineral composition and in Cu-Pb-Zn ratios of the “Ku rokô” with ores of Pb-Zn veins, and the “Ôkô” and “Keikô” with ores of Cu veins and cupriferous pyritic deposits.
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雲母－緑泥石混合層構造のXRD解析

-花岡鉱山産sericite/sudoite混合層鉱物の再検討－

*東正治

粘土科学討論会講演要旨集
2010年 54 巻 A19
発行日: 2010年
公開日: 2010/12/01

DOI https://doi.org/10.11362/cssj2.54.0.A19.0

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花岡鉱山
産sericite/sudoite(S/S)混合層鉱物は24Åの微弱な長周期反射を示す雲母－緑泥石規則型混合層である。XRD底面反射系列パターンには規則混合層からのずれとブロード化が伴うので，各種S/S比の混合層モデルに基づくシミュレーション計算を行いながら混合層構造を詳しく再検討した。どの単独モデルよりも，S/S=50/50(10%)+45/55(20%)+40/60(30%)+33/67(40%)の4種複合モデルシミュレーションの方が，実際のXRDパターンにより近い。
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