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Bulletin of the Geological Survey of Japan Vol.51 No.12 (2000)

Cover photograh | Table of Contents |

Cover photograh


Cover figure

Geothermal reservoirs show various temperature distributions regulated by locations and sizes of heat sources, thickness of cap rocks, and others. This problem has been systematically studied by numerical simulations based on simplified vertical one-dimensional transient 'extended thermal conduction' models. The cover figure shows comparisons of temporal changes (from magma chamber emplacement to 400 ky later) of vertical temperature distributions, using 16 small figures of temperature contours (50℃ intervals), for deep hydrothermal systems distributed between a cap rock (2.5km thick) and 16cases of magma chambers (top depth, 3, 4, 5, 6km×thickness, 1, 2, 4, 8km).

(Figure was made by Hiroshi SHIGENO)

Table of Contents

TitleAuthor PDF
Geological and petrological studies of the Kinan and Izu-Ogasawara-back arc-echelon Seamount Chains Teruaki ISHII, Hiroshi SATO, Shiki MACHIDA, Satoru HARAGUCHI, Akira USUI, Osamu ISHIZUKA, Hidetsugu TANIGUCHI, and Kazunori YAGI (615-630) 51-12_01.pdf(1,918KB)
Systematic forward and preliminary inversion analyses for magma – hydrothermal system environments based on simplified – model numerical simulations Hiroshi SHIGENO (631-648) 51-12_02.pdf(4,922KB)
Geology and petrography of the Imakane granitic rocks, southwestern Hokkaido Yuhei TAKAHASHI (649-656) 51-12_03.pdf(881KB)
[Notes and Comments]
Standards of terms, symbols, patterns, colors and presentation of legend for use on geologic maps and explanatory notes on the standards
Kazuhiko KANO, Hideo HOSHIZUMI, Toshimitsu IWAYA, Akira SAKAI, Takahiro YAMAMOTO, Hiroshi MAKIMOTO, Kazuya KUBO, Yukio YANAGISAWA, and Kimio OKUMURA (657-678) 51-12_04.pdf(2,268KB)