Based on the observation of the matter absorbed on the geogas collectors

elements in the crust can be transported to surface in the form of nano-scale particles by ascending gas flow. For further studies

a model experiment was designed in which the ascending gas flowed through ore stratum

ore stratum covered by overburden and country rock respectively. The matter transported by ascending gas flow under the experiment turned to be nano-scale particle and the matter on the collectors increased with the increasing time. Some elements could pass through the water layer and compact glass in the experiment. The result of the diffusion experiment demonstrates that the elements can be also transported by diffusion

but the amount is much less. The nano-scale particles photographs of the geogas matter under scanning electron microscopy are presented.