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Tanase, Atsushi*; Chiba, Akihiko*; Takeda, Masahiro*
JNC TJ7420 2005-014, 210 Pages, 2004/03
JNC-TJ7420-2005-014.PDF:80.52MB
no abstracts in English
Tanase, Atsushi*; Chiba, Akihiko*; Takeda, Masahiro*
JNC TJ7420 2005-025, 316 Pages, 2003/03
no abstracts in English
Tanase, Atsushi*; Uehara, Daijiro*; Ninomiya, Atsushi*
JNC TJ7420 2005-087, 365 Pages, 2002/03
JNC-TJ7420-2005-087.pdf:89.33MB
no abstracts in English
Tanase, Atsushi*
JNC TJ7420 2005-006, 168 Pages, 2002/03
JNC-TJ7420-2005-006.pdf:6.95MB
no abstracts in English
Tanase, Atsushi*
JNC TJ7420 2005-002, 179 Pages, 2001/02
JNC-TJ7420-2005-002.pdf:35.31MB
None
Tanase, Atsushi*
JNC TJ7420 2005-080, 542 Pages, 2000/03
JNC-TJ7420-2005-080.pdf:114.01MB
no abstracts in English
Tanase, Atsushi*
JNC TJ7420 2005-001, 657 Pages, 1998/12
JNC-TJ7420-2005-001.pdf:184.6MB
None
Chiba, Akihiko*; Baba, Hideto*; Uegomori, Hiroaki*
JNC TJ7440 2005-062, 59 Pages, 1998/03
Investigation techniques to characterize geological disposal sites of radioactive wastes have been developed focusing mainly on disposal sites under fresh water environment. It will, however, be necessary to develop techniques applicable to characterization of disposal sites in saline water environment, where the sites have to be selected in a coastal region. This literature research has been carried out in order to collect and compile basic data relevant to the captioned subject. A number of cases that include investigations on drill holes filled or contaminated by sea water are collected from papers and articles in various scientific journals published in the period between 1977 and 1997. The collected data are so classified and arranged to extract the point of issue. Generally, the investigation under saline water environment should take account of higher concentration of ions, dissolved substances and, accordingly higher conductivity than under fresh water environment. The difference of the environment will influence investigation techniques such as drilling, geophysical logging in drill holes, on-site hydraulic and water quality testing and so forth. Corrosion of equipment should also be taken into condition. These point of issue, however, are not specifically discussed in most of literatures collected during this study and remain as subjects for further research.
Matsuda, Yoichi*; Moriuchi, Hiroyuki*
JNC TJ7420 2005-090, 134 Pages, 1998/03
no abstracts in English
Tanase, Atsushi*
JNC TJ7420 2005-007, 544 Pages, 1998/03
no abstracts in English
Niwa, Masakazu; Nohara, Tsuyoshi; Mizuochi, Yukihiro*; Tanase, Atsushi*; Kobayashi, Hirohisa*
no journal, ,
The Atera Fault in the eastern part of Gifu Prefecture is a NW-trend active fault and shows sinistral strike-slip displacement. A fracture zone of the Atera Fault, in which granite (Naegi-Agematsu Granite) is in fault contact with welded tuff of the Nohi Rhyolite, is exposed several tens meters in width in Kawaue, Nakatsugawa City. Detailed occurrence of the fracture zone is described in this study to examine the research method to reveal histories of active faults. In the studied fracture zone, fault rocks of the welded tuff origin consist of fault breccia and clay, while those of the granite consist of cataclasite. The fault rocks of the welded tuff origin are more clay-rich than those of the granite origin. Textures of host rocks are more well-preserved in the fault rocks of the granite origin than in those of the the welded tuff origin.
Niwa, Masakazu; Mizuochi, Yukihiro*; Tanase, Atsushi*
no journal, ,
no abstracts in English
Niwa, Masakazu; Mizuochi, Yukiiro*; Tanase, Atsushi*
no journal, ,
no abstracts in English