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Chemical and isotopic composition of fumarolic gases at Iwate volcano, Japan, during and after seismic activity in 1998: implications for the modification of ascending volcanic gases
Volcanoes volcanic earthquakes expectations and volcanic gases seismic activity the concentration of hydrochloric acid
2015/8/27
In 1998, there were many volcanic earthquakes recorded at Iwate volcano, Japan. Although an eruption was anticipated, it never occurred. Fumarolic gases were sampled at the volcano on six occasions du...
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...
Origin of Cretaceous and Oligocene Kaolinites from the Iwaizumi Clay Deposit, Iwate, Northeastern Japan
Climate Cretaceous Hydrogen-isotopes Iwate Japan Kaolinite Oligocene Oxygen-isotopes
2011/12/27
Abstract: Hydrogen- (δD = −106 to −97‰) and oxygen-(δ18O = +14.0 to +16.6‰) isotope compositions of kaolinite from late Cretaceous and Oligocene deposits at Iwaizumi, northeastern Japan, i...