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Mount Usu (Usu volcano), Usu District, Iburi Subprefecture, Hokkaidล Prefecture, Japani
| Regional Level Types | |
|---|---|
| Mount Usu (Usu volcano) | Volcano |
| Usu District | District |
| Iburi Subprefecture | Subprefecture |
| Hokkaidล Prefecture | Prefecture |
| Japan | Country |
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Latitude & Longitude (WGS84):
42° 32' 33'' North , 140° 50' 3'' East
Latitude & Longitude (decimal):
Type:
Kรถppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Date | 35,301 (2017) | 8.7km |
| Muroran | 96,197 (2017) | 28.1km |
| Niseko Town | 4,654 (2017) | 29.5km |
| Iwanai | 15,584 (2017) | 54.8km |
Other/historical names associated with this locality:
Usu-zan
Fumaroles on active dangerous stratovolcano near Tohya lake in southwestern Hokkaido.
A new parasitic cone, Showa-shinzan, erupted dacite lava from the southeast flank of Usu-zan in 1944-1945, emitting very high-temperature steam (over 800ยฐ C) consisting of water vapor, hydrogen, HF, HCl and boric acid. Fumarole gases here have the highest concentration of tin vapour (7 ppm) of any volcano (Giggenbach & Matsuo, 1991).
It has erupted four times since 1900: in 1910 (which created Meiji-shinzan, 1944โ45 (which created Shลwa-shinzan), August 7, 1977, and on March 31, 2000. To the north lies Lake Tลya. Mount Usu formed on the southern rim of the caldera containing the lake.
The volcano is a major tourist attraction.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| โ Alunite Formula: KAl3(SO4)2(OH)6 |
| โ Anhydrite Formula: CaSO4 |
| โ Baryte Formula: BaSO4 |
| โ Bismuthinite Formula: Bi2S3 |
| โ Cristobalite Formula: SiO2 |
| โ Galeite Formula: Na15(SO4)5F4Cl |
| โ Galena Formula: PbS |
| โ Greenockite Formula: CdS |
| โ Gypsum Formula: CaSO4 · 2H2O |
| โ Halite Formula: NaCl |
| โ Hematite Formula: Fe2O3 |
| โ Hydrokenoralstonite Formula: Na0.5(Al,Mg)2(F,OH)6 · H2O |
| โ 'Hypersthene' Formula: (Mg,Fe)SiO3 |
| โ Native Tellurium Formula: Te |
| โ Pickeringite Formula: MgAl2(SO4)4 · 22H2O |
| โ Powellite Formula: Ca(MoO4) |
| โ Pyrite Formula: FeS2 |
| โ Quartz Formula: SiO2 |
| โ Rheniite Formula: ReS2 |
| โ 'Silica' |
| โ Tamarugite Formula: NaAl(SO4)2 · 6H2O |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| โ | Native Tellurium | 1.CC.10 | Te |
| Group 2 - Sulphides and Sulfosalts | |||
| โ | Greenockite | 2.CB.45 | CdS |
| โ | Galena | 2.CD.10 | PbS |
| โ | Bismuthinite | 2.DB.05 | Bi2S3 |
| โ | Pyrite | 2.EB.05a | FeS2 |
| โ | Rheniite | 2.EB.35 | ReS2 |
| Group 3 - Halides | |||
| โ | Halite | 3.AA.20 | NaCl |
| โ | Hydrokenoralstonite | 3.CF.05 | Na0.5(Al,Mg)2(F,OH)6 ยท H2O |
| Group 4 - Oxides and Hydroxides | |||
| โ | Hematite | 4.CB.05 | Fe2O3 |
| โ | Quartz | 4.DA.05 | SiO2 |
| โ | Cristobalite | 4.DA.15 | SiO2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| โ | Anhydrite | 7.AD.30 | CaSO4 |
| โ | Baryte | 7.AD.35 | BaSO4 |
| โ | Alunite | 7.BC.10 | KAl3(SO4)2(OH)6 |
| โ | Galeite | 7.BD.10 | Na15(SO4)5F4Cl |
| โ | Pickeringite | 7.CB.85 | MgAl2(SO4)4 ยท 22H2O |
| โ | Tamarugite | 7.CC.10 | NaAl(SO4)2 ยท 6H2O |
| โ | Gypsum | 7.CD.40 | CaSO4 ยท 2H2O |
| โ | Powellite | 7.GA.05 | Ca(MoO4) |
| Unclassified | |||
| โ | 'Hypersthene' | - | (Mg,Fe)SiO3 |
| โ | 'Silica' | - | |
List of minerals for each chemical element
Other Databases
| Wikipedia: | https://en.wikipedia.org/wiki/Mount_Usu |
|---|
Other Regions, Features and Areas containing this locality
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References
Fujimaki, Hirokazu (1986) Fractional crystallization of the basaltic suite of Usu volcano, southwest Hokkaido, Japan, and its relationships with the associated felsic suite. Lithos, 19 (2) 129-140 doi:10.1016/0024-4937(86)90004-6
Mount Usu, Usu District, Iburi Subprefecture, Hokkaidล Prefecture, Japan