Naoto Takeno

Welcome to my personal home page on my research work.

• Topics
• Profile
• How to contact me
• GPG public key
• My own software sources

Topics

(1) Recent Informations on my original softwares

formulaweight has been updated to version 1.0.2. This is a work-around on weird behavior for the formula including Eu and Er after the stoichiometric coefficient such as Al5Eu3O12. (2004/01/19)

steam has been updated to version 1.1.2. Bug fix on occasional erroneous return of liquid values for vapor thermodynamic properties (H,S,V,D) along a vapor-liquid saturation curve above 350C. Windows binary is not uploaded, and old version has been removed. (2003/04/29)

PECS has been updated to version 1.2.1. Just a minor bug fix to conform to the recent C++ standards. (2003/04/27)

Signatures for all softwares have been replaced using GNU gpg, and public key has also been replaced. (2003/04/21)

PECS has been updated to version 1.2. Database of the equilibrium constants has been changed from the data based on the articles of Helgeson et al. (1974-1981) to the data generated with SUPCRT92 (Johnson et al., 1992) and its updates by Everett Shock. Differences in high temperature region and acid geothermal waters are remarkable. Update is recommended.(2001/11/20)

PECS has been updated to version 1.1. It bundles new SIDRAW program to plot Saturation Index geothermometer. Minor changes have been given to the format of the output file from PECS(mode 2). SIDRAW creates PostScript file. PostScript viewer such as Ghostscript is required to see the plot.(2001/08/17)

IRIS Explorer(R) module "ReadGSImeshU" has been updated. It bundles new "coalesce" program that creates one "ReadGSImeshU" readable file from several GSI DEM files covering large area. To read "coalesce" output, "ReadGSImeshU" has taken minor revision.(2001/06/08)

(2) Unofficial archives of the World Geothermal Congress 2000

Profile

Working at

National Institute of Advanced Industrial Science and Technology, Research Center of Deep Geological Environments, Geoinfomatics team, team leader.

Specialty

Numerical modeling of geochemical processes, water/rock interaction, scientific visualization technique.

Diploma

Diplome de Docteur from Ecole Nationale Superieur des Mines de Paris and Ecole Nationale Superieur des Mines de Saint-Etienne, 12 December 1994.

Special Honor

Award of Society of Resource Geology for promising research. (June 8 1992)
Director Award of Geological Survey as a member of research group for the geothermal database system. (January 31 1995)

Selected papers

• Takeno, N and Iiyama, J.T.(1983): Garnet skarn of the Kamioka mine, Tochibora and Maruyama deposits, Gifu (in Japanese with English abstract). Mining Geology, 33, 165-175.
• Takeno, N. and Iiyama, J.T.(1983): Alteration around granite porphyry intrusives in the Tochibora and Maruyama deposits (in Japanese with English abstract). Mining Geology, 33, 305-316.
• Takeno, N.(1985): Alteration and fluid chemistry of Takenoyu geothermal area -- Hydrothermal alteration in core from drill hole DW2 -- (in Japanese with English abstract). Rept. Geol. Surv. Japan, 264. 169--181.
• Takeno, N., Kimbara, K., Takashima, I. and Hanaoka, N.(1987): Alteration zone database system (in Japanese with English abstract). Rept. Geol. Surv. Japan, 266, 233-249.
• Takeno, N. and Noda, T.(1987): Alteration of the core samples from the geothermal exploration wells in the Sengan geothermal area, northeast Japan (in Japanese with English abstract). Rept. Geol. Surv. Japan, 266, 233-249.
• Takeno, N.(1988): Geology of the North Kurikoma geothermal area, Akita Prefecture, Northeast Japan (in Japanese with English abstract) . Rept. Geol. Surv. Japan, 268, 191-210.
• Takeno, N.(1988): Chemical interaction between water and rock simulated with computer (in Japanese), Chishitsu News, 414, 48-56.
• Takeno, N.(1988): Manual of program (PECS) for estimating in-situ pH and chemical speciation in geothermal reservoir water (in Japanese). Open file report of Geol. Surv. Japan, 49.
• Takeno N.(1989): The effect of temperature gradient on the interaction between geothermal water and rock -- an approach by numerical simulation, Mining Geology, 39, 295-304.
• Takeno, N.(1993): Numerical simulation in geothermal geochemistry (in Japanese). Jour. Geotherm. Res. Soc., 15, 48-54.
• Takeno, N.(1994): Contact metamorphism, chemical equilibrium and kinetics (in Japanese). Chishitsu News, 474, 18-22.
• Takeno, N.(1995): Numerical simulation of hydrothermal alteration (in Japanese), Jour. Japan Geotherm. Energy Assoc.,32, 154-167.
• Takeno N.(1995): Contribution a l'etude des skarns du massif de Querigut ( Pyrenees orientals, France): Geochimie des elements traces et modelisation des transferts de matiere. These de diplome de docteur, 261p. Ecole Nationale Superieure des Mines de Paris and Ecole Nationale Superieure des Mines de Saint-Etienne.
• Takeno, N.(1995): Numerical simulation of rock - water interaction in hydrothermal system (in Japanese). in Radioactive waste and geological science (Shimazaki, H., Shindo, S. and Yoshida, S. ed.) Univ. Tokyo Press, 226-251.
• Takeno, N., Ishido, T. and J.W.Pritchett(1998): Numerical simulation of development of silica alteration zoning in geothermal system-- preliminary study based on kinetic reaction-transport model (in Japanese with English abstract). Jour. Min. Soc. Japan, 27, 157-166.[ Movie files of the results]
• Takeno N., Ishido, T. and Pritchett, J.W.(1998): Alteration zoning of silica minerals in a geothermal system - a numerical simulation based on reaction-transport model. Proceedings 20th New Zealand Geothermal Workshop, 259-264. [html, pdf]
• Takeno, N.(1998): Utilization of Geological Map of Japan 1:1,000,000 3rd Edition CD-ROM version with scientific visualization software - customization of IRIS Explorer(R) modules for importing geological data and topographical data (in Japanese with English abstract). Bull. Geol. Surv. Japan, 48, 591-597.
• Takeno, N., Sawaki, T., Murakami, H. and Miyake, K. (1999): Fluid inclusion study of skarns in the Maruyama deposit, the Kamioka Mine, Central Japan, Resource Geol., 49, 233-242.
• Takeno, N. (2000): Thermal and geochemical structure of the Uenotai geothermal system, Japan. Geothermics, 29, 257-277.
• Takeno, N., Ishido, T., and Pritchett, J. W. (2000): Dissolution, transport and precipitation of silica in geothermal system. Proceedings World Geothermal Congress 2000 Kyushu - Tohoku, Japan, 2943-2948. [pdf]
• Takeno, N., Muraoka, H., Sawaki, T. and Sasaki, M. (2000): Contact metamorphism around the Kakkonda granite: Analyses based on free energy minimization method. Rept. Geol. Surv. Japan, no.284, 17-33. (in Japanese with English abstract)
• Takeno, N., Ishido, T. and J.W.Pritchett (2000): Dissolution, transportation, and precipitation of silica in geothermal systems. Rept. Geol. Surv. Japan, no.284, 235-248. (in Japanese with English abstract)
• Takeno, N., Muraoka, H., Sawaki, T. and Sasaki, M.(2001): Thermodynamic framework of the contact metamorphism around the Kakkonda granite in a active geothermal field, northeast Japan. Proceedings 10th Water-Rock Interaction 2001 (ed. Cidu, R.), volume 1, 765-768, Swets & Zeitlinger B. V., Lisse, 772p.
• Takeno, N.(2001): 3D map with visualization software - IRIS Explorer(R), Chishitsu News, 562, 23-27. (in Japanese)
• Takeno, N.(2001):FLASK-SG: A program to compute chemical equilibria in metamorphic petrology, Computers & Geosciences, 27, 1179-1188.
• Takeno, N.(1996): Memoirs of Saint-Etienne FRANCE (in Japanese), Chishitsu News, 507, 56-61.

How to contact me

Address: 305-8567 Research Center of Deep Geological Environments, Tsukuba Central 7, National Institute of Advanced Industrial Science and Technology, Higashi 1, 1, 1 Tsukuba Ibaraki JAPAN.
Phone: +81 29 861 3936
Fax: +81 29 861 3643
E-mail:

GPG public key

MyGPG public key.

My own software sources

Following my own software sources used for research are available. These are provided with the hope of usefulness, but NO WARRANTY. Please read the README attached with source codes. File names including _bin and .exe are binary executables for Linux and Windows, respectively.

flask-sg 1.1.0

• Function: Chemical equilibrium computing program by Gibbs free energy minimization method using Holland and Powell (1990) dataset.
• Environment required: UNIX (make command required), C++ compiler (STL required).
• Tested environment: Linux 2.0.33 + g++, IRIX 6.2 + C++, Tru64 Unix +C++

formulaweight

• Function: Obtaining formula weight for given chemical formula (conforming to IUPAC commission, Atomic Weights and Isotopic Abundances 1981).
• Environment required: UNIX (make command required), C++ compiler.
• Tested environment: Linux 2.0.33 + g++, IRIX 6.2 + C++

steam

• Function: obtaining physico-chemical quantities of steam (limited function, conforming to JSME steam table (1968)).
• Environment required: UNIX (make command required), C++ compiler, Fortran compiler.
• Tested environment: Linux 2.0.33 + g++ + g77, IRIX 6.2 + C++ + f77

pecs v.1.2

• Function: obtaining in-situ pH and chemical speciation of aqueous species in water at given temperature below the critical temperature from chemical analysis of water and steam.
• Environment required: UNIX(make command required), C++ compiler.
• Tested environment: Linux 2.2.14 + g++, IRIX 6.2 + C++

ReadGSJmap100C (IRIS Explorer module)

• Function: binary and source files of the IRIS Explorer 3.5 module to read Mesh data base of Geological Survey of Japan Geological Map of Japan 3rd Edition CD-ROM version.
• Environment required: IRIX 6.2 and IRIS Explorer(v.3.5) for binary and IRIS Explorer 3.5 and C compiler for compiling the sources.
• Tested environment: IRIX 6.2 + C

ReadGSImeshC (IRIS Explorer module)

• Function: binary and source files of the IRIS Explorer 3.5 module to read Geographical Survey Institute CD-ROM version Mesh data (Elevation).
• Environment required: IRIX 6.2 and IRIS Explorer(v.3.5) for binary and IRIS Explorer 3.5 and C compiler for compiling the sources.
• Tested environment: IRIX 6.2 + C

ReadGSJmap100U (IRIS Explorer module)

• Function: binary and source files of the IRIS Explorer 4.0 module to read Mesh data base of Geological Survey of Japan Geological Map of Japan 3rd Edition CD-ROM version and to output geological code in longitude-latitude (in degree) 2D uniform lattice. Difference between ReadGSJmap100C and ReadGSJmap100U is that ReadGSJmap100C outputs UTM x-y (km) curvilinear lattice whereas ReadGSJmap100U outputs longitude-latitude uniform lattice.
• Environment required: IRIX 6.5 and IRIS Explorer(v.4.0) for binary and IRIS Explorer 6.5 and C compiler for compiling the sources.
• Tested environment: IRIX 6.5 + C + IRIS Explorer 4.0

ReadGSImeshU 1.1.0 (IRIS Explorer module)

• Function: binary and source files of the IRIS Explorer 4.0 module to read Geographical Survey Institute CD-ROM version Mesh data (Elevation) and to output elevation data in logitude-latitude (in degree) 2D uniform lattice. Difference between ReadGSImeshC and ReadGSImeshU is that ReadGSImeshC outputs UTM x-y (km) curvilinear lattice whereas ReadGSImeshU outputs longitude-latitude uniform lattice.
• Environment required: IRIX 6.5 and IRIS Explorer(v.4.0) for binary and IRIS Explorer 4.0 and C compiler for compiling the sources.
• Tested environment: IRIX 6.5 + C + IRIS Explorer 4.0

ReadGrd (IRIS Explorer module)

• Function: binary and source files of the IRIS Explorer 4.0 module to read GMT (Generic Mapping Tools; Wessel and Smith, 1995) .grd file and to output elevation data in logitude-latitude (in degree) 2D uniform lattice.
• Environment required: IRIX 6.5 and IRIS Explorer(v.4.0) for binary and IRIS Explorer 4.0 and C compiler for compiling the sources.
• Tested environment: IRIX 6.5 + C + IRIS Explorer 4.0

ReadTbase (IRIS Explorer module)

• Function: binary and source files of the IRIS Explorer 4.0 module to read Global 5 minute arc elevation/bathymetry database NGDC/NOAA TerraineBase and to output elevation data in logitude-latitude (in degree) 2D uniform lattice.
• Environment required: IRIX 6.5 and IRIS Explorer(v.4.0) for binary and IRIS Explorer 4.0 and C compiler for compiling the sources.
• Tested environment: IRIX 6.5 + C + IRIS Explorer 4.0

IRIS Explorer(R) is a trade mark registered of The Numerical Algorithms Group Japan K.K..

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Last update Apr 01 2004
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