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Journal of the Mineralogical Society of Japan最新文献

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Electron Probe Micro-Analysis of Minerals for Light Elements : Carbon and Nitrogen 矿物中轻元素:碳和氮的电子探针微量分析
Journal of the Mineralogical Society of Japan Pub Date : 1997-11-01 DOI: 10.2465/GKK1952.26.203
N. Nishida, M. Kimata
{"title":"Electron Probe Micro-Analysis of Minerals for Light Elements : Carbon and Nitrogen","authors":"N. Nishida, M. Kimata","doi":"10.2465/GKK1952.26.203","DOIUrl":"https://doi.org/10.2465/GKK1952.26.203","url":null,"abstract":"Electron probe microanalysis (EPMA) of the wavelength-dispersive (WD) type offers some advantage in each quantitative analysis of carbon and nitrogen in non-conducting minerals coated with a thin film of Al-metal and carbon, respectively. The crystal of W/Si evaporated multilayers for long-wavelength WD spectrometry is used to cover the routine wavelength range for these elements. Both opening of the slit and accumulation of the intensity by reiterative measurements at several analytical points adjoining each other have improved the accuracy in the low count rates of 'soft' X-rays from canbon and nitrogen.","PeriodicalId":242743,"journal":{"name":"Journal of the Mineralogical Society of Japan","volume":"469 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116189351","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
Image Analysis of Rock Textures : Present Status and Problems in its Automation 岩石纹理图像分析及其自动化的现状与问题
Journal of the Mineralogical Society of Japan Pub Date : 1997-11-01 DOI: 10.2465/GKK1952.26.185
S. Ikeda, S. Nakashima, A. Tsuchiyama
{"title":"Image Analysis of Rock Textures : Present Status and Problems in its Automation","authors":"S. Ikeda, S. Nakashima, A. Tsuchiyama","doi":"10.2465/GKK1952.26.185","DOIUrl":"https://doi.org/10.2465/GKK1952.26.185","url":null,"abstract":"Textures of rocks as well as their chemical compositions have quantitative information on their formation histories. Therefore, it is important to develop common and automatic techniques of the texture description. In this paper, applications of image analyses on the quantitative representation of rock textures were reviewed. Image analyses of rock textures consist of acquisition, processing, and quantitative analyses of images. BSE image has been predominantly used for these procedures, although other kinds of images (e.g. color images acquired by image scanners and microscopes) have been used in recent years. In image processing, binary images are produced by thresholding grey scale or color images, and grains (or grain boundaries) are recognized. This procedure has a crucial role in the following image processing and quantification. Quantitative analyses of mode, grain size distribution, grain shape and other factors of rock textures are carried out based on these binary images. Many algorithms for such quantitative analyses have been developed. In two workshops for image analysis of rock textures organized in 1996 and 1997, several technical problems have been discussed.For example, difficulty in recognizing grain boundaries in rocks is a common basic problem in using any imaging tools. We should also develop new imaging tools such as X-ray CT and NMR imaging to obtain directly 3D data.","PeriodicalId":242743,"journal":{"name":"Journal of the Mineralogical Society of Japan","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123691098","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: 4
High-Pressure High-Temperature Transitions and Thermodynamic Properties of Mantle Minerals. 地幔矿物的高压高温转变与热力学性质。
Journal of the Mineralogical Society of Japan Pub Date : 1997-02-01 DOI: 10.2465/GKK1952.26.15
M. Akaogi
{"title":"High-Pressure High-Temperature Transitions and Thermodynamic Properties of Mantle Minerals.","authors":"M. Akaogi","doi":"10.2465/GKK1952.26.15","DOIUrl":"https://doi.org/10.2465/GKK1952.26.15","url":null,"abstract":"This paper reviews the author's studies on phase transitions of mantle minerals at high pressures and high temperatures. Two experimental techniques, high-pressure high-temperature experiment and calorimetry, have been applied to clarify the phase transitions and thermodynamic properties of mantle minerals. The author's researches are described in the trend of mineral physics studies in recent decades. Current status and future development in mineral physics are also briefly discussed.","PeriodicalId":242743,"journal":{"name":"Journal of the Mineralogical Society of Japan","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129657868","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: 1
Effect of H_2O on the Mg_2GeO_4 Olivine-Spinel Transformation h2o对Mg_2GeO_4橄榄石-尖晶石相变的影响
Journal of the Mineralogical Society of Japan Pub Date : 1995-10-01 DOI: 10.2465/GKK1952.24.265
Y. Shimizu, N. Shimobayashi
{"title":"Effect of H_2O on the Mg_2GeO_4 Olivine-Spinel Transformation","authors":"Y. Shimizu, N. Shimobayashi","doi":"10.2465/GKK1952.24.265","DOIUrl":"https://doi.org/10.2465/GKK1952.24.265","url":null,"abstract":"Isothermal experiments under hydrothermal conditions were carried out at four different temperatures as a function of time and H2O content (0.3-2.2wt%) for the purpose of examining the effect of H2O on kinetics of the Mg2GeO4 olivinespinel transformation. The results reveal that H2O can activate the transformation with increase of its content at least up to∼2wt%. The transformation process in the presence of H2O was discussed and a new model via an intermediate state was proposed, that is, atoms constituting the olivine may once dissolve into the supercritical fluid and then precipitate into the spinel structure.","PeriodicalId":242743,"journal":{"name":"Journal of the Mineralogical Society of Japan","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132920082","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: 1
Present Status of Cosmology 宇宙学的现状
Journal of the Mineralogical Society of Japan Pub Date : 1995-10-01 DOI: 10.2465/GKK1952.24.225
S. Ikeuchi
{"title":"Present Status of Cosmology","authors":"S. Ikeuchi","doi":"10.2465/GKK1952.24.225","DOIUrl":"https://doi.org/10.2465/GKK1952.24.225","url":null,"abstract":"","PeriodicalId":242743,"journal":{"name":"Journal of the Mineralogical Society of Japan","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133556594","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: 1
Structural changes of silicate crystals under high temperatures and high pressures 高温高压下硅酸盐晶体结构的变化
Journal of the Mineralogical Society of Japan Pub Date : 1994-03-03 DOI: 10.2465/GKK1952.23.167
M. Kanzaki
{"title":"Structural changes of silicate crystals under high temperatures and high pressures","authors":"M. Kanzaki","doi":"10.2465/GKK1952.23.167","DOIUrl":"https://doi.org/10.2465/GKK1952.23.167","url":null,"abstract":"Recent studies of structural changes of silicate minerals under high temperature and high pressure were reviewed. Recently it was found that several high pressure phases transform to amorphous phase or metastable phase during decompression. Examples are MnTiO3 perovskite/LiNbO3 phase transition and C2/c /P21/c transition in MgSiO3 enstatite. In order to study these unquenchable phases it is essential to use in-situ observation technique. Existing phase diagrams based on quench experiments should be reinvestigated. For better understanding of the earth's mantle, structure and physical properties of mantle minerals must be studies at its stable P-T conditions rather than at ambient condition.","PeriodicalId":242743,"journal":{"name":"Journal of the Mineralogical Society of Japan","volume":"426 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130159620","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
MD法と結晶構造・相転移・物性計算 MD法与晶体结构、相变、物性计算
Journal of the Mineralogical Society of Japan Pub Date : 1992-10-31 DOI: 10.2465/GKK1952.21.205
正典 松井
{"title":"MD法と結晶構造・相転移・物性計算","authors":"正典 松井","doi":"10.2465/GKK1952.21.205","DOIUrl":"https://doi.org/10.2465/GKK1952.21.205","url":null,"abstract":"We describe the molecular dynamics (MD) method to simulate the structural and physical properties of minerals at any temperature and pressure. The MgSiO3 polymorphs are used to illustrate the reliability and applicability of this atomistic simulation technique. The MD simulation is further attempted to predict possible phase transitions which might occur at elevated temperatures and pressures.","PeriodicalId":242743,"journal":{"name":"Journal of the Mineralogical Society of Japan","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129057591","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
温度・圧力・組成の関数としての鉱物 作为温度、压力、组成函数的矿物
Journal of the Mineralogical Society of Japan Pub Date : 1992-10-31 DOI: 10.2465/GKK1952.21.233
栄治 大谷
{"title":"温度・圧力・組成の関数としての鉱物","authors":"栄治 大谷","doi":"10.2465/GKK1952.21.233","DOIUrl":"https://doi.org/10.2465/GKK1952.21.233","url":null,"abstract":"Recent developments in experimental mineralogy are reviewed. Significant advancement has been made as follows: (1) recent development of the high pressure technology, such as the diamond anvil cell and the multi anvil apparatus, made it possible to characterize the stability fields, crystallographic and physical properties of the mantle minerals synthesized at high pressure by using these high pressure apparatuses; (2) various techiniques have been developed to make “in situ” observation of the physical properties and kinetics of the phase transitions at high pressures and temperatures; the techniques for the “in situ” observation are the high pressure and temperature X-ray diffraction using synchrotron radiation X-ray source, the high temperature transmission electron microscopy, in situ optical microscopic observation in the aqueous solutions and the high temperature silicate magmas, spectroscopies at high pressure by using the diamond anvil cell.","PeriodicalId":242743,"journal":{"name":"Journal of the Mineralogical Society of Japan","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134382520","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
1.7～21keV-EXAFS測定装置の開発と材料評価への応用 1.7 ~ 21kev - exafs测量设备的开发及材料评估应用
Journal of the Mineralogical Society of Japan Pub Date : 1992-04-30 DOI: 10.2465/GKK1952.21.97
中野 朝雄, 尾形 潔
{"title":"1.7～21keV-EXAFS測定装置の開発と材料評価への応用","authors":"中野 朝雄, 尾形 潔","doi":"10.2465/GKK1952.21.97","DOIUrl":"https://doi.org/10.2465/GKK1952.21.97","url":null,"abstract":"","PeriodicalId":242743,"journal":{"name":"Journal of the Mineralogical Society of Japan","volume":"1998 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127485664","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
イルメナイト固溶体(Fe2+, Mn2+, Mg)TiO3と(Fe2+, Mn2+, Mg)Cl2水溶液間におけるイオン交換平衡実験 非金属固溶体(Fe2+， Mn2+， Mg)TiO3和(Fe2+， Mn2+， Mg)Cl2水溶液间的离子交换平衡实验
Journal of the Mineralogical Society of Japan Pub Date : 1992-04-30 DOI: 10.2465/GKK1952.21.59
知裕 久保, 悦生 内田, 容子 古川, 直哉 今井
{"title":"イルメナイト固溶体(Fe2+, Mn2+, Mg)TiO3と(Fe2+, Mn2+, Mg)Cl2水溶液間におけるイオン交換平衡実験","authors":"知裕 久保, 悦生 内田, 容子 古川, 直哉 今井","doi":"10.2465/GKK1952.21.59","DOIUrl":"https://doi.org/10.2465/GKK1952.21.59","url":null,"abstract":"Ion exchange experiments between ilmenite solid solution (Fe2+, Mn2+, Mg)TiO3 and 1 molal aqueous (Fe2+, Mn2+, Mg)Cl2 solution were carried out using standard cold-seal type pressure vessels at 600°C and 1000kg/cm2. The ion exchange reactions can be expressed as follows;FeTiO3+MnCl2aq=MnTiO3+FeCl2aqMnTiO3+MgCl2aq=MgTiO3+MnCl2aqand MgTiO3+FeCl2aq=FeTiO3+MgCl2aq. Under the experimental conditions, FeTiO3, MnTiO3 and MgTiO3 make a perfectly continuous solid solution. Based on thermodynamic analysis using ternary solid solution model of Kakuda et al. (1991), interaction parameters (Wi) for the ternary ilmenite solid solution have been obtained to be WFeFeMn=-0.02, WFeMnMn=-0.19, WMnMnMg=2.99, WMnMgMg=3.34, WMgMgFe=1.23, WMgFeFe=1.03 and WFeMnMg=1.83kcal/mol. FeTiO3-MnTiO3 solid solution is regarded as ideal solution, and MnTiO3-MgTiO3 and MgTiO3-FeTiO3 solid solutions show positive deviations from ideal solution. Ferrous ion is preferably partitioned into ilmenite solid solution. On the other hand, manganese ion tends to concentrate into aqueous chloride solution.","PeriodicalId":242743,"journal":{"name":"Journal of the Mineralogical Society of Japan","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129958016","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
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