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Paleointensities on 8 ka obsidian from Mayor Island, New Zealand
Paleo Intensities 8 ka obsidian Mayor Island New Zealand
2014/12/31
The 8 ka BP (6050 BCE) pantelleritic obsidian flow on Mayor Island, Bay of Plenty, New Zealand, has been investigated using 30 samples from two sites. Due to a very high paramagnetic/ferromagnetic rat...
Experimental Study on the Formation of Clay Minerals from Obsidian by Interaction with Acid Solution at 150° and 200°C
Acid solution Allophane Boehmite Experimental alteration Halloysite Obsidian Spherical kaolinite
2011/12/27
Experimental alteration of obsidian with HCl solution was performed to elucidate dissolution mechanism and formation process of clay minerals in acid solution. Reactions were carried out using 0.1, 0....
Formation of Clay Minerals During Low Temperature Experimental Alteration of Obsidian
Allophane Dealkalized leached layer Fibrous material Nonstoichiometric dissolution Obsidian Smectite
2011/12/30
Experimental alteration of obsidian in distilled-deionized water at 150? 175? 200? and 225癈 was studied. The alteration products were examined by X-ray powder diffraction, scanning electron microscopy...