Modelling of rock alteration due to coupled heat and mass transport

Autor:	R. Ondrak
Rok vydání:	1997
Předmět:	Convection Advection Fluid dynamics General Earth and Planetary Sciences Porosity Structural geology Cementation (geology) Petrology Geomorphology Geology Diagenesis Volumetric flow rate
Zdroj:	Geologische Rundschau. 86:262-274
ISSN:	1432-1149 0016-7835
Popis:	A three-dimensional computer model is presented for studying the interaction of heat and mass transport regarding the temporal and spatial evolution of sandstones. The model simulates coupled heat and reactive mass transport in porous rocks. In general, mineral solubilities in water are low. Therefore, large fluid volumes are required to flow through the rock to explain observed mineral cements in sandstones. Besides mass transport, pore fluids transport heat which modifies rock temperatures. Very high flow rates result in strong temperature modifications and, therefore, enhance diagenesis. Low flow rates often cannot account for observed cementation. The model results show the effect of advective, convective and conductive heat transport on temperature and diagenetic evolution of sandstones for two different flow systems in a simple geological environment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::825246c0c0ced10ce3acd2976d02877e https://doi.org/10.1007/s005310050139 Zobrazit plný text záznamu Full text from SpringerLink