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Isomorphous Compounds; Galena, Clausthalite, and Altaite from the Kushikino Gold-Silver Ore Deposit, Japan-Possible Substitutional Limits 同形化合物;日本Kushikino金银矿床中的方铅矿、辉长石和阿尔泰矿——可能的替代界限
Mining geology Pub Date : 1989-08-31 DOI: 10.11456/SHIGENCHISHITSU1951.39.216_253
Y. Shiga, Y. Urashima
{"title":"Isomorphous Compounds; Galena, Clausthalite, and Altaite from the Kushikino Gold-Silver Ore Deposit, Japan-Possible Substitutional Limits","authors":"Y. Shiga, Y. Urashima","doi":"10.11456/SHIGENCHISHITSU1951.39.216_253","DOIUrl":"https://doi.org/10.11456/SHIGENCHISHITSU1951.39.216_253","url":null,"abstract":"The Kushikino ore deposit is an epithermal gold-silver quartz vein type developed in Miocene to Pliocene andesites. Galena-clausthalite solid solution and altaite are abundant in the gold-silver-tellurium ores from the Shinpi No.1 vein of the mine; typical mineral associations are altaite-calaverite-clausthalite, altaite-electrum-galena, clausthalite-hessite-sylvanite, galena-petzite-sylvanite. Electron microprobe analyses were performed on the various associations in order to establish the limits of isomorphous substitutions among sulfur, selenium, and tellurium in the PbS-PbSe-PbTe series. Galena-clausthalite solid solution shows a compositional range from about 18 to 74 mol. percent PbSe, indicating a continuous solid solution series between PbS and PbSe. A rather wide miscibility gap exists between approximately 22 and 73 mol. percent PbSe in the PbSe-PbTe series, and a more extensive miscibility gap in the PbS-PbTe series. These compositional relations are explained from the viewpoint of geochemical character. No natural stable phase is expected to appear in a central part of the PbS-PbSe-PbTe system although the extent of the solid solutions is probably enlarged at elevated temperatures.","PeriodicalId":383641,"journal":{"name":"Mining geology","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132315894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
K-Ar age of hornblende from a dioritic rock in the Tochibora ore deposit of the kamioka mine, in the Hida metamorphic region, central Japan. 日本中部飞驒变质区神冈矿中闪长岩中角闪石的K-Ar年龄。
Mining geology Pub Date : 1989-08-31 DOI: 10.11456/SHIGENCHISHITSU1951.39.216_283
T. Kano, K. Shibata, S. Terayama
{"title":"K-Ar age of hornblende from a dioritic rock in the Tochibora ore deposit of the kamioka mine, in the Hida metamorphic region, central Japan.","authors":"T. Kano, K. Shibata, S. Terayama","doi":"10.11456/SHIGENCHISHITSU1951.39.216_283","DOIUrl":"https://doi.org/10.11456/SHIGENCHISHITSU1951.39.216_283","url":null,"abstract":"A mass composed mainly of coarse-grained heterogeneous dioritic rocks is exposed between the Tochibora and Maruyama ore deposits in the Kamioka mining area. The rocks have gneissic texture and have been called \"metabasite\" in this mining area . The mass is emplaced in the Hida gneisses and thermally metamorphosed by the intrusion of granitic dykes. The dioritic rocks are made up mainly of plagioclase and greenish brown hornblende. Any of plagioclase ranges 31-34 in the coarse-grained diorite and 35-38 in the fine-grained part included in the coarse-grained one. Hornblende is mostly ferroan pargastic with ferro-edenitic margin. K-Ar age of hornblende separated from coarsegrained diorite is 192•}6 Ma, which corresponds to K-Ar ages of hornblende from the Hida gneisses and Funatsu granites. This age represents the time of re-heating of the diorite by the intrusion of the Funatsu granites.","PeriodicalId":383641,"journal":{"name":"Mining geology","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134448202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Estimation of an areal extent of geothermal reservoir by new techniques of exploration in the Kakkonda Geothermal Area 利用勘探新技术估算Kakkonda地热区地热储层面积
Mining geology Pub Date : 1989-08-31 DOI: 10.11456/SHIGENCHISHITSU1951.39.216_239
Y. Muramatsu, S. Miyazaki, Kohei Sato
{"title":"Estimation of an areal extent of geothermal reservoir by new techniques of exploration in the Kakkonda Geothermal Area","authors":"Y. Muramatsu, S. Miyazaki, Kohei Sato","doi":"10.11456/SHIGENCHISHITSU1951.39.216_239","DOIUrl":"https://doi.org/10.11456/SHIGENCHISHITSU1951.39.216_239","url":null,"abstract":"","PeriodicalId":383641,"journal":{"name":"Mining geology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131514546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Tectonic control on vein-type ore deposits in Sapporo-Akaigawa district, southwestern Hokkaido 北海道西南部札幌-赤井川地区脉状矿床的构造控制
Mining geology Pub Date : 1989-08-31 DOI: 10.11456/SHIGENCHISHITSU1951.39.216_273
Yasushi Watanabe
{"title":"Tectonic control on vein-type ore deposits in Sapporo-Akaigawa district, southwestern Hokkaido","authors":"Yasushi Watanabe","doi":"10.11456/SHIGENCHISHITSU1951.39.216_273","DOIUrl":"https://doi.org/10.11456/SHIGENCHISHITSU1951.39.216_273","url":null,"abstract":"","PeriodicalId":383641,"journal":{"name":"Mining geology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129150495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Bismuth-bearing Minerals from the Inakuraishi Ore Deposits, Southwestern Hokkaido, Japan 日本北海道西南部Inakuraishi矿床的含铋矿物
Mining geology Pub Date : 1989-06-30 DOI: 10.11456/SHIGENCHISHITSU1951.39.215_223
H. Maeda, Yoji Ito
{"title":"Bismuth-bearing Minerals from the Inakuraishi Ore Deposits, Southwestern Hokkaido, Japan","authors":"H. Maeda, Yoji Ito","doi":"10.11456/SHIGENCHISHITSU1951.39.215_223","DOIUrl":"https://doi.org/10.11456/SHIGENCHISHITSU1951.39.215_223","url":null,"abstract":"Two bismuth minerals, gustavite and \"bismuthinite\", were newly found in an ore from an outcrop of the Taisei vein, Inakuraishi mine. The ore occurs in strongly altered andesite as veinlets less than 5 cm in width and was cut by a manganese oxides vein, 10 to 20 cm in width. The manganese oxides were estimated to have formed by weathering of hydrothermal manganese carbonates. Vein minerals are quartz, pyrite, and chalcopyrite with accessary amounts of gustavite, \"bismuthinite\", galena, acanthite, sphalerite, hematite, and marcasite. The gustavite and \"bismuthinite\" occur in close association with each other, but they do not coexist with galena or acanthite which contains a few wt.% Bi. The possible temperature and sulfur fugacity during deposition of the bismuth minerals are estimated to be in ranges of 254•‹ to 280•Ž and 10-11.1 to 10-9.3 atm., respectively. These data suggest that the bismuth minerals had formed at the stage II of the Inakuraishi mineralization.","PeriodicalId":383641,"journal":{"name":"Mining geology","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127164979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Chemical composition of regularly interstratified chlorite/smectite in the ores from some Neo-gene gold-silver vein-type deposits in Japan 日本一些新第三纪金银脉型矿床矿石中规则层间绿泥石/蒙脱石的化学组成
Mining geology Pub Date : 1989-06-30 DOI: 10.11456/SHIGENCHISHITSU1951.39.215_181
T. Yoneda, Takashi Watanabe
{"title":"Chemical composition of regularly interstratified chlorite/smectite in the ores from some Neo-gene gold-silver vein-type deposits in Japan","authors":"T. Yoneda, Takashi Watanabe","doi":"10.11456/SHIGENCHISHITSU1951.39.215_181","DOIUrl":"https://doi.org/10.11456/SHIGENCHISHITSU1951.39.215_181","url":null,"abstract":"Chemical composition of regularly interstratified chlorite/smectite in the ores from some Neogene gold-silver vein-type deposits in Japan.By Tetsuro YONEDA** and Takashi WATANABE*** Abstract: Regularly interstratified chlorite/smectite mineral occurs widely as a gangue mineral in epithermal goldsilver-quartz veins, associated closely with base-metal sulfides and occasionally with Mn minerals. The chlorite/smectite mineral from six gold-silver vein deposits, that is, Konomai, Todoroki, Chitose, Seigoshi, Omidani, and Kushikino was quantitatively analyzed by X-ray microanalyser. The chemical composition of the mineral reflects characteristic features of the ores. Mncontent of the mineral is relatively high and the correlation between Mg and Mn is obvious in the ores containing rhodochrosite, whereas it is very low in the ores free from Mn minerals. Moreover, the Mn/Fe ratio of the mineral varies widely corresponding to the Mn/Fe ratio of coexisting sphalerite. It is infered that the stability and the variations in chemical composition of the regularly interstratified chlorite/smectite mineral appear to be influenced by temperature and chemical composition of ore-forming fluid.","PeriodicalId":383641,"journal":{"name":"Mining geology","volume":"59 28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114756289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Alteration of Deep-Sea Manganese Nodules from the Northern Central Pacific Basin 中太平洋盆地北部深海锰结核蚀变
Mining geology Pub Date : 1989-06-30 DOI: 10.11456/SHIGENCHISHITSU1951.39.215_205
K. Iizasa, S. Takenouchi
{"title":"Alteration of Deep-Sea Manganese Nodules from the Northern Central Pacific Basin","authors":"K. Iizasa, S. Takenouchi","doi":"10.11456/SHIGENCHISHITSU1951.39.215_205","DOIUrl":"https://doi.org/10.11456/SHIGENCHISHITSU1951.39.215_205","url":null,"abstract":"Manganese nodules from the northern Central Pacific Basin are subjected to chemical and mineralogical analyses as well as mode of occurrence. Under the ore microscope, three different reflectivity zones (high, moderate and low on arbitrary scale) are intermingled in the single ferromanganese oxide layer around the margins of older nodule fragments. The fragments consist mainly of •Ý-MnO2 and amorphous Fe oxyhydroxides referred to as","PeriodicalId":383641,"journal":{"name":"Mining geology","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117090324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Th/U ratios of basement rocks and ore lead isotopes from the Korean Peninsula: a reconnaissance 朝鲜半岛基岩和矿石铅同位素Th/U比值的探测
Mining geology Pub Date : 1989-06-30 DOI: 10.11456/SHIGENCHISHITSU1951.39.215_219
Kazuo Satō, A. Sasaki, A. Tsusue, S. Nishimura
{"title":"Th/U ratios of basement rocks and ore lead isotopes from the Korean Peninsula: a reconnaissance","authors":"Kazuo Satō, A. Sasaki, A. Tsusue, S. Nishimura","doi":"10.11456/SHIGENCHISHITSU1951.39.215_219","DOIUrl":"https://doi.org/10.11456/SHIGENCHISHITSU1951.39.215_219","url":null,"abstract":"","PeriodicalId":383641,"journal":{"name":"Mining geology","volume":"1943 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129145120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
K-Ar Ages of Sericite in Hydrothermally Altered Rocks around the Toyoha Deposits, Hokkaido, Japan 日本北海道丰河矿床热液蚀变岩中绢云母的K-Ar年龄
Mining geology Pub Date : 1989-06-30 DOI: 10.11456/SHIGENCHISHITSU1951.39.215_191
O. Sawai, T. Okada, T. Itaya
{"title":"K-Ar Ages of Sericite in Hydrothermally Altered Rocks around the Toyoha Deposits, Hokkaido, Japan","authors":"O. Sawai, T. Okada, T. Itaya","doi":"10.11456/SHIGENCHISHITSU1951.39.215_191","DOIUrl":"https://doi.org/10.11456/SHIGENCHISHITSU1951.39.215_191","url":null,"abstract":"The Toyoha mine located in the Green Tuff Region of southwestern Hokkaido is well known for the occurrence of polymetallic vein-type deposits. Miocene strata composed of lava and pyroclastic rocks host the deposits and are hydrothermally altered. The age of formation of the deposits has been estimated to be middle Miocene. However, K-Ar age determination for sixteen sericites in hydrothermally altered rocks from the Toyoha deposits balls in a range from 2.93 to 0.96 Ma which are considered to represent the duration of hydrothermal activity responsible for the formation of the Toyoha deposits. The gangue sericite of Izumo vein showed a very young age of 0.49•}0.04 Ma. It has been estimated, on the basis of cross-cutting relations, that the mineralization stages of the deposits are mainly divided into two. The present results supported this observation that the Izumo vein belongs to the later stage. Sericites from the Okuiburi mineralized zone and the Yunosawa geothermal alteration zone showed the K-Ar ages of 2.90•}0.07 Ma and 2.40•}0.10, 2.39•}0.09 Ma, respectively. Therefore, it is likely that hydrothermal activity at the Okuiburi mineralized zone and the Yunosawa alteration zone is contemporaneous with that of the early stage of the Toyoha deposit.","PeriodicalId":383641,"journal":{"name":"Mining geology","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121164126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 42
Rare-Earch Resources of the World 世界稀土资源
Mining geology Pub Date : 1989-05-20 DOI: 10.11456/SHIGENCHISHITSU1951.39.214_139
M. Kamitani
{"title":"Rare-Earch Resources of the World","authors":"M. Kamitani","doi":"10.11456/SHIGENCHISHITSU1951.39.214_139","DOIUrl":"https://doi.org/10.11456/SHIGENCHISHITSU1951.39.214_139","url":null,"abstract":"","PeriodicalId":383641,"journal":{"name":"Mining geology","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123825501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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