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Carbon dioxide and methane emissions from calcareous-marly rock under stress: experimental tests results
gas geochemistry earthquake precursors greenhouse gases
2015/9/10
The identified emissions of abiogenic carbon dioxide, carbon monoxide and methane are generally attributed to
volcanic activity or to geochemical processes associated with thermometamorphic effects. ...
Monitoring of temporal and spatial variations in fumarole helium and carbon dioxide characteristics at Poás and Turrialba volcanoes, Costa Rica (2001-2009)
helium isotopes carbon isotopes Central America Costa Rica volcano monitoring
2017/8/9
We report results of a 9-year monitoring program that took place from 2001 to 2009 of the helium and carbon isotope (3He/4He, δ13C) and relative abundances ratios (CO2/3He) of fumarole sites at Poás a...
Microporosity in Montmorillonite from Nitrogen and Carbon Dioxide Sorption
Microporosity Montmorillonite Carbon Dioxide Sorption
2012/2/13
Nitrogen adsorption at 78亱K and carbon dioxide sorption at 195亱K on homoionic lithium, sodium, caesium, calcium, lanthanum and hexane diammonium saturated montmorillonites have been examined by means ...
Interlamellar Adsorption of Carbon Dioxide by Smectites
Interlamellar Adsorption Carbon Dioxide Smectites
2011/11/18
Abstract: The adsorption of CO2 at low temperature (∼ −70°C) on thin films of homoionic smectites was studied by X-ray diffraction and by i.r. absorption. An increase in the d001 spacings ...
Surface Area of Homoionic Illite and Montmorillonite Clay Minerals as Measured by the Sorption of Nitrogen and Carbon Dioxide
Surface Area Homoionic Illite Montmorillonite Clay Minerals Nitrogen Carbon Dioxide Sorption
2012/2/20
The surface areas obtained by application of the B.E.T. theory to adsorption isotherms of nitrogen and carbon dioxide gases at 77°K and 195°K respectively on homoionic samples of illite and montmorill...
Surface Area of Vermiculite with Nitrogen and Carbon Dioxide as Adsorbates
Surface Area Vermiculite Nitrogen Carbon Dioxide Adsorbates
2012/2/20
Surface-area studies were made on several homoionic vermiculites with both nitrogen and carbon dioxide as adsorbates. These studies show that only very slight penetration occurs between individual ver...
Surface Area of Montmorillonite from the Dynamic Sorption of Nitrogen and Carbon Dioxide
Montmorillonite the Dynamic Sorption Nitrogen Carbon Dioxide
2011/11/17
Abstract: Surface area determinations were made on a montmorillonite with various cations emplaced on the exchangeable sites, utilizing nitrogen and carbon dioxide as adsorbates at 77癒 and 195癒, respe...