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Sulfur isotopic study of ore minerals and altered host rocks of Neogene–Quaternary overprinting hydrothermal systems in the Toyoha–Muine area, southwest Hokkaido, Japan
sulfur isotopes overprinting hydrothermal systems ore minerals alteration Toyoha–Muine
2017/4/11
Sulfur isotopes in vein sulfides (galena, sphalerite, and pyrite) and pyrite sulfur derived from overprinting hydrothermal
systems in the altered volcanic host rocks of the Toyoha–Muine area are dete...
Diurnal variations of polar organic tracers in summer forest aerosols: A case study of a Quercus and Picea mixed forest in Hokkaido, Japan
secondary organic aerosol isoprene 2-methyltetrols levoglucosan
2017/4/12
We investigated the summertime formation of secondary organic aerosols (SOA) via the oxidation of isoprene, α/β-
pinene and β-caryophyllene in a Quercus crispula and Picea glehnii mast mixed forest l...
Stable and noble gas isotopic study of thermal and groundwaters in northwestern Hokkaido, Japan and the occurrence of geopressured fluids
geopressured fluid hydrogen isotope oxygen isotope helium isotope Hokkaido
2017/8/9
Thermal and groundwaters are distributed along the west coast and in the inland region of Northwestern Hokkaido, Japan. The waters in the latter group have relatively high temperatures. Stable (D, O) ...
Heterogeneities of hydrocarbon compositions in mudstones of a turbiditic sequence of the Miocene Kawabata Formation in Yubari, central Hokkaido, Japan
hydrocarbon biomarker turbiditic sequence geochemical heterogeneity terrigenous material transport paleoenvir
2017/8/10
Biomarker analyses of aliphatic and aromatic hydrocarbons were conducted on the upper and lower parts of individual mudstones in a turbiditic sequence of the Miocene Kawabata Formation, Yubari, centra...
Geochemistry and Mineralogy of a Modern Buserite Deposit from a Hot Spring in Hokkaido, Japan
Buserite DTA Hot spring Ion-exchange equilibrium Manganese deposit Phyllomanganate REE SEM Todorokite Volcano XRD Yuno-Taki Falls
2011/12/1
Abstract: The hot spring water discharging from a flank of an active volcano is precipitating unique monomineralic manganese deposits over volcanic terrain. The major and trace element chemistry, XRD ...