Journal of the Clay Science Society of Japan最新文献_第7页

Origins of Amino Acids in Deep-sea Hydrothermal Sub-vent System covered with Volcanic Dacite on a Bonin-Arc 渤宁弧上火山英安岩覆盖的深海热液子喷口系统氨基酸的来源

Journal of the Clay Science Society of Japan Pub Date : 2004-05-26 DOI: 10.11362/JCSSJNENDOKAGAKU1961.43.170

Y. Takano, K. Marumo, Miwako Nakashima, Kensei Kobayashi

{"title":"Origins of Amino Acids in Deep-sea Hydrothermal Sub-vent System covered with Volcanic Dacite on a Bonin-Arc","authors":"Y. Takano, K. Marumo, Miwako Nakashima, Kensei Kobayashi","doi":"10.11362/JCSSJNENDOKAGAKU1961.43.170","DOIUrl":"https://doi.org/10.11362/JCSSJNENDOKAGAKU1961.43.170","url":null,"abstract":"Deep-sea hydrothermal sub-vents, subjacent to seafloor hydrothermal vents, are of significant interest as a new scientific frontier in a number of fields. This report analyzes data obtained in ocean-drilling surveys at submarine hydrothermal vents on the Suiyo Seamount in the Izu-Bonin Arc, Pacific Ocean. A high-temperature deep-sea hydrothermal system related to dacitic arc-volcanism has been drilled using a tethered, submarine rock-drill system as a part of the Archaean Park Project. The benthic multi-coring system (BMS) 25 employed allows for direct sampling of microorganisms, rocks and fluids beneath hydrothermal vents. These surveys obtained direct data regarding subjacent extreme environments under extreme conditions of 308 °C and greater than 140 atmospheres. Evaluation of the vertical distribution and stereo chemistry of amino acids in such vigorous sub-vent environments leads to a model of deep-sea subterranean chemistry and biology that describes a lack of evidence of abiotically synthesized amino acids. A model of deep-sea chemistry and biology is proposed, describing optimal microbial activities rather than abiotically synthesized amino acids components.","PeriodicalId":164792,"journal":{"name":"Journal of the Clay Science Society of Japan","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127360136","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

Alteration of Kumogi Granite in Shimane Prefecture 岛根县熊木花岗岩的蚀变

Journal of the Clay Science Society of Japan Pub Date : 2004-05-26 DOI: 10.11362/JCSSJNENDOKAGAKU1961.44.12

M. Jige, R. Kitagawa, C. Fujiwara, Yuka Nakamura

{"title":"Alteration of Kumogi Granite in Shimane Prefecture","authors":"M. Jige, R. Kitagawa, C. Fujiwara, Yuka Nakamura","doi":"10.11362/JCSSJNENDOKAGAKU1961.44.12","DOIUrl":"https://doi.org/10.11362/JCSSJNENDOKAGAKU1961.44.12","url":null,"abstract":"The Kumogi granite located in Kanagi-cho, Shimane Prefecture intruded along the Hamada cauldron wall in the late stage of Paleogene. Some parts of Kumogi granite are overlain by the Tsunodu formation. Several kinds of alteration phenomenon are recognized in the granite body, such as white clay veins, black manganese veins and pinkish and whife color altered parts. The mineralogical and chemical characterization of clay minerals formed in these veins and alteration parts of granite were analyzed by means of X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM) with EDX and Electron probe X-ray micro analyzer (EPMA). As results, tubular halloysite is mainly formed in altered granites and clay veins. In white and black veins, illite is recognized as associated mineral. Smectite is main constituent mineral with halloysite in the pinkish color altered parts. The black veins are constituted mainly of Mn (10^-65wt% as oxide). Tubular halloysite crystals are generally formed by both weathering and hydrothermal process. According to Kitagawa et al. (1984), the tube width of hydrothermal halloysite is clearly narrower than that formed by weathering. The surface microtopographies of tubular halloysite crystals are different between weathering and hydrothermal products respectivelly. It is noted from these results that the Kumogi granite was altered by both hydrothermal and weathering.","PeriodicalId":164792,"journal":{"name":"Journal of the Clay Science Society of Japan","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124015246","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

Slope Failure Occurred in Kangnung, Korea Caused by Typhoon “Rusa”(No.0215) From August 31 to September 1, 2002 2002年8月31日至9月1日台风“鹿莎”(0215号)在韩国江陵造成的边坡破坏

Journal of the Clay Science Society of Japan Pub Date : 2004-05-26 DOI: 10.11362/JCSSJNENDOKAGAKU1961.43.197

Jinyeon Hwang, R. Kitagawa, Morihisa Suzuki, Takehiro Hayashi, H. Yamasaki, M. Jige, Takeshi Torii

引用次数: 1

Method of Quantitative Analysis for Fibrous Tremolite Contaminated in Long Fiber Sepiolite 长纤维海泡石中纤维状透闪石污染的定量分析方法

Journal of the Clay Science Society of Japan Pub Date : 2004-05-26 DOI: 10.11362/JCSSJNENDOKAGAKU1961.43.192

T. Mashiko, R. Matsumura, Y. Kosaka, N. Kayahara, N. Kohyama

引用次数: 1

L'éxfoliation chimique de Vermiculitoide à Ia vue de Ia désagrégation 从分解的角度看蛭石的化学剥落

Journal of the Clay Science Society of Japan Pub Date : 2004-05-26 DOI: 10.11362/JCSSJNENDOKAGAKU1961.43.206

Takéo Wada

引用次数: 0

Synthetic Mica and Its Application 合成云母及其应用

Journal of the Clay Science Society of Japan Pub Date : 2004-05-26 DOI: 10.11362/JCSSJNENDOKAGAKU1961.44.31

S. Ohta

引用次数: 2

Relationship between Slide Plane and Clay Minerals in the Hydrothermally Altered Rocks 热液蚀变岩中滑动面与粘土矿物的关系

Journal of the Clay Science Society of Japan Pub Date : 2004-05-26 DOI: 10.11362/JCSSJNENDOKAGAKU1961.44.1

Hironobu Katsuki, K. Tomita, T. Otsuji, M. Kawano, Takehiko Tsunetomi

引用次数: 1

Surface Complexation Modeling of the Acid/Base Chemistry of Natural Allophane 天然Allophane酸/碱化学的表面络合模拟

Journal of the Clay Science Society of Japan Pub Date : 2004-05-26 DOI: 10.11362/JCSSJNENDOKAGAKU1961.43.180

K. Fukushi, Masaya Suzuki

引用次数: 1

Quantitative Analysis of Tremolite Contaminated in Long Fiber Sepiolite 长纤维海泡石中透闪石污染的定量分析

Journal of the Clay Science Society of Japan Pub Date : 2004-05-26 DOI: 10.11362/JCSSJNENDOKAGAKU1961.43.186

N. Kayahara, R. Matsumura, Yasuo Mizoguchi, R. Hasegawa, N. Kohyama

{"title":"Quantitative Analysis of Tremolite Contaminated in Long Fiber Sepiolite","authors":"N. Kayahara, R. Matsumura, Yasuo Mizoguchi, R. Hasegawa, N. Kohyama","doi":"10.11362/JCSSJNENDOKAGAKU1961.43.186","DOIUrl":"https://doi.org/10.11362/JCSSJNENDOKAGAKU1961.43.186","url":null,"abstract":"In recent ban of use of asbestos product in Japan, sepiolite has been attracted as an asbestos substitute. Sepiolite from China consisting of long fibers has been used as an asbestos substitute, but the recent high production and consumption causes of poor sepiolite materials containing small amount of tremolite asbestos as an impurity. For the safety use of Chinese sepiolite, precise analysis of contaminated tremolite and product management are quite important. This study determined how to detect and quantify the contaminated tremolite precisely. For the quantitative analysis, we prepared standard sepiolite samples containing known amounts of tremolite using fibrous tremolite sample produced from Yamaga, Kumamoto Prefecture and pure sepiolite sample from Hebei, China. For the preparation, various methods for equally mixing of tremolite in sepiolite matrix were studied. A conventional X-ray diffractmeter was employed for the analysis of contaminated tremolite for routinely quality control. A calibration curve was prepared for the quantitative analysis. This method showed the detection lower limit of 0.5% tremolite in sepiolite. Using the prepared calibration curve, we analyzed some sepiolite products, and revealed that dispersion of sepiolite product in isopropyl alcohol makes the variance of measured values small and enhance reliability of quantitative analysis.","PeriodicalId":164792,"journal":{"name":"Journal of the Clay Science Society of Japan","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131994169","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

Les Applications de VERMICAL (vermiculite gonflee par les traitements chimiques) 蛭石应用(化学处理使蛭石膨胀)

Journal of the Clay Science Society of Japan Pub Date : 2004-05-26 DOI: 10.11362/JCSSJNENDOKAGAKU1961.44.19

Takéo Wada

引用次数: 0