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Research paper : The advanced geological researches and fundamental national land information (M. Saito)−23−Synthesiology - English edition Vol.3 No.1 (2010) For society to continue sustainable development, human beings must have a scientifically based understanding of the natural environment. The GMJ Tomochi sheet and the GMJ in general are expected to play a crucial role in providing this understanding.Geological Survey of Japan: 1:1,000,000 Geological Map of Japan (3rd ed.), Geological Survey of Japan (1992).Y. Isozaki and T. Itaya: Pre-Jurassic klippe in northern Chichibu Belt in west-central Shikoku, southwestern Japan; Kurosegawa Terrane as a tectonic outlier of the pre-Jurassic rocks of the inner zone, J. Geol. Soc. Japan, 97, 431-450 (1991) (in Japanese with English abstract).Y. Isozaki, T. Hashiguchi and T. Itaya: The Kurosegawa Klippe; an examination, J. Geol. Soc. Japan, 98, 917-941 (1992) (in Japanese with English abstract). Technology Information Department (TID), National Institute of Advanced Industrial Science and Technology (AIST): Case studies on outcome produced by National Institute of Advanced Industrial Science and Technology (2) − Life cycle assessment (LCA) of Geological Map of Japan and Silicon semiconductor, TID Report, AIST-TID-R2004-01, (2004) (in Japanese).R. L. Bernknopf, D. S. Brookshire, D. R. Soller, M. J. McKee, J. F. Sutter, J. C. Matti and R. H. Campbell: Societal value of geologic maps, USGS Circular 1111 (1993).M. Ogasawara and K. Ooi (eds.): Societal value of geologic maps − Japanese translation of USGS Circular 1111 and reviews of studies on the economic evaluation of geologic maps in the United States, GSJ Interim Report, 37, (2006) (in Japanese with English abstract).Technology Information Department (TID), National Institute of Advanced Industrial Science and Technology (AIST): Sansoken ni okeru autokamu jireichosa [7] Chishitsuzufuku (Case studies on outcome produced by National Institute of Advanced Industrial Science and Technology, 7. Geological Map of Japan), AIST TODAY, 5(5), 40-41 (2005) (in Japanese).M. Saito: The change of geologic maps in the Yokoyama district, Chishitsu News, 561, 4-4 (2001) (in Japanese).M. Miyamura: Stratigraphy and geological structure of the Permian formations of Mt. Ibuki and its vicinity, central Japan, Geol. Surv. Japan Report, 224 (1967).Gifu Prefecture: Tochibunrui kihon chosa "Yokoyama" (Scale 1:50,000 Fundamental Land Classification Survey "Yokoyama"), Gifu Prefecture (1995) (in Japanese).M. Saito and Y. Sawada: Geology of Yokoyama district, with Geological Sheet Map at 1:50,000. Geological Survey of Japan (2000) (in Japanese with English abstract).M. Saito, K. Miyazaki, S. Toshimitsu and H. Hoshizumi: Geology of Tomochi district, with Geological Sheet Map at 1:50,000. Geological Survey of Japan, AIST (2005) (in Japanese with English abstract).T. Kawano, H. Tanaka, T. Takahashi, S. Toshimitsu and D. Mori: Stratigraphy and structure of the Lower Cretaceous Tomochi Formation in the Chichibu terrane, Kumamoto Prefecture, Bull. Goshonoura Cret. Mus., 3, 11-22 (2002) (in Japanese with English abstract).M. Saito and S. Toshimitsu: Permian radiolarian fossils from the basement of the Lower Cretaceous Tomochi Formation in the Tomochi area, central Kyushu, J. Geol. Soc. Japan, 109, 71-74 (2003)(in Japanese with English abstract).[1][2][3][4][5][6][7][8][9][10][11][12][13][14]References[15][16][17][18][19][20]M. Saito, K. Saiki and S. Toshimitsu: Late Devonian Leptophloeum from the coherent strata in the Kurosegawa Belt, Tomochi district, central Kyushu, J. Geol. Soc. Japan, 109, 293-298 (2003) (in Japanese with English abstract).K. Miyazaki: Low-P-high-T metamorphism and the role of heat transport by melt migration in the Higo Metamorphic Complex, Kyushu, Japan, J. Metamorphic Geol., 22, 793-809 (2004).M. Saito, K. Miyazaki and H. Tsukamoto: Clinopyroxenite in serpentinite melange of the "Kurosegawa Belt" in the Izumi-Tomochi area, Kumamoto Prefecture, central Kyushu, Bull. Geol. Surv. Japan, 55, 171-179 (2004) (in Japanese with English abstract).M. Saito and K. Miyazaki: Jadeite-bearing metagabbro in serpentinite melange of the Kurosegawa Belt in Izumi Town, Yatsushiro City, Kumamoto Prefecture, central Kyushu, Bull. Geol. Surv. Japan, 57, 169-176 (2006) (in Japanese with English abstract).M. Saito, S. Takarada, S. Toshimitsu, K. Mizuno, K. Miyazaki, H. Hoshizumi, S. Hamasaki, K. Sakagushi, T. Ono and Y. Murata: Geological Map of Japan 1:200,000, Yatsushiro and a part of Nomo Zaki, Geological Survey of Japan, AIST (2010) (in Japanese with English abstract) (in press).M. Saito, K. Kimura, K. Naito and A. Sakai: Geology of Shiibamura district, with Geological Sheet Map at 1:50,000, Geological Survey of Japan (1996) (in Japanese with English abstract). AuthorMakoto SaitoCompleted a masters degree in earth science at Nagoya University in 1989. Employed at the Geological Survey of Japan in 1990. Joined the Institute of Geoscience, AIST, as Senior Researcher in 2001, leader of Seamless Geoinformation Research Group, Institute of Geology and Geoinformation since 2009. Works mainly on the geology of accretionary complexes from Kyushu to the northern Ryukyu Islands. Primary author for four 1:50,000 sheets and four 1:200,000 sheets of the GMJ and co-author for two 1:200,000 sheets. Also active in dissemination of geological information. Discussions with Reviewer1 Use of geological data collected by other institutionsQuestion and comment (Akira Ono, AIST)This article allows readers from other fields to understand that the GMJ 1:50,000 is created, and reviewed from various viewpoints based on the latest geological findings and with consideration of how it will be used by society. It is also an excellent paper of Type 2 Basic Research in its structure and content.I got the impression that the creation of a geological map, as described in this paper, is an ambitious work that predicts the three-dimensional structure of a vast subsurface space from geological data obtained from sparse outcrops on the surface. Perhaps there is not much borehole data in the region mapped,

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