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Dive into the research topics where Ryuichi Sugisaki is active.

Publication


Featured researches published by Ryuichi Sugisaki.


The Journal of Geology | 1983

Origin of Hydrogen and Carbon Dioxide in Fault Gases and Its Relation to Fault Activity

Ryuichi Sugisaki; Masahiko Ido; Hiroshi Takeda; Yumiko Isobe; Yoshimitsu Hayashi; Noriaki Nakamura; Hiroshi Satake; Yoshihiko Mizutani

Gases occluded in fracture zones of active faults are characterized by a high concentration of


The Journal of Geology | 1984

Relation between Chemical Composition and Sedimentation Rate of Pacific Ocean-Floor Sediments Deposited since the Middle Cretaceous: Basic Evidence for Chemical Constraints on Depositional Environments of Ancient Sediments

Ryuichi Sugisaki


Precambrian Research | 2003

Stratigraphy and sedimentary petrology of an Archean volcanic–sedimentary succession at Mt. Goldsworthy in the Pilbara Block, Western Australia: implications of evaporite (nahcolite) and barite deposition

Kenichiro Sugitani; Koichi Mimura; Kazuhiro Suzuki; Koichiro Nagamine; Ryuichi Sugisaki

H_{2}


Earth and Planetary Science Letters | 1996

Gas geochemical changes at mineral springs associated with the 1995 southern Hyogo earthquake (M = 7.2), Japan

Ryuichi Sugisaki; Takamori Ito; Koichiro Nagamine; Iwao Kawabe


Chemical Geology | 1986

Chemical aspects of alteration of acidic tuffs and their application to siliceous deposits

Koshi Yamamoto; Ryuichi Sugisaki; Fusao Arai

and/or


Lithos | 1976

Chemical characteristics of volcanic rocks: Relation to plate movements

Ryuichi Sugisaki


Tectonophysics | 1972

Late Paleozoic geosynclinal basalt and tectonism in the Japanese Islands

Ryuichi Sugisaki; Shinjiro Mizutani; H. Hattori; Mamoru Adachi; Tsuyoshi Tanaka

CO_{2}


Chemical Geology | 1982

Simplified gas chromatographic analysis of H2, He, Ne, Ar, N2 and CH4 in subsurface gases for seismo-geochemical studies

Ryuichi Sugisaki; Hiroshi Takeda; Iwao Kawabe; Hiroo Miyazaki


The Journal of Geology | 1987

Compositional Variations in Manganese Micronodules: A Possible Indicator of Sedimentary Environments

Ryuichi Sugisaki; Masayoshi Ohashi; Kenichiro Sugitani; Kazuhiro Suzuki

. A predominant gas species-


Earth and Planetary Science Letters | 1995

Evolution of light hydrocarbon gases in subsurface processes: Constraints from chemical equilibrium

Ryuichi Sugisaki; Koichiro Nagamine

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Tsuyoshi Tanaka

Tokyo University of Agriculture and Technology

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