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On the change of 3He/4He ratios in hot spring gases after The Iwate-Miyagi Nairiku Earthquake in 2008
helium isotopes noble gas earthquake epicenter Japan
2017/8/10
The Iwate-Miyagi Nairiku Earthquake in 2008 (M7.2) occurred on June 14th 2008 in the northeastern Japan, Iwate Prefecture. We collected water and gas samples in hot springs from seven localities aroun...
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 ...
Sequential Active Alteration of Rhyolitic Volcanic Rock to Endellite and a Precursor Phase of It at a Spring in Michoacan, Mexico
Sequential Active Alteration Rhyolitic Volcanic Endellite Precursor Phase
2012/2/20
Sequential alteration of volcanic rock of rhyolitic composition to a precursor of endellite, and thence to tubular endellite, may be observed at a hot spring about 27 km north of Ciudad Hidalgo, Micho...