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Hydrothermal Origin of Smectite in Volcanic Ash
Hydrothermal Alteration Oxygen Isotope Composition Smectite Volcanic Ash
2011/12/8
Abstract: Smectite and fine-grained quartz were separated from 6 volcanic ash samples collected in Japan from Shinmoe-dake Volcano, southern Kyushu, and Mt. Usu Volcano, southern Hokkaido. Oxygen isot...
Hydrothermal Origin of the Clays from the Upper Slopes of Mauna Kea, Hawaii
Hydrothermal Origin Clays Upper Slopes
2012/2/15
The soils of the summit region of Mauna Kea are similar to the soils of the high mountain deserts and to the soils of cold deserts. Dramatic differences, however, exist between the soils of the summit...