- porosity, secondary
- Porosity of some lithologic material that has developed after the rock was initially formed, such as joints and fractures, and may be capable of enlargement by dissolution processes.
A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. Courtesy of the author & The Karst Waters Institute. 2002.
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porosity, tertiary — Porosity caused by solutional enlargement of secondary porosity. See also pore; pore space; porosity; porosity, effective; porosity, primary; porosity, secondary … Lexicon of Cave and Karst Terminology
porosity, primary — Porosity of some lithological material that developed while the rock was forming. See also interstice; pore; pore space; porosity; porosity, effective; porosity, secondary … Lexicon of Cave and Karst Terminology
porosity — 1. The ratio of the aggregate volume of interstices in a rock or soil to its total volume; generally stated as a percentage . 2. The ratio, usually expressed as a percentage, of the total volume of voids of a given porous medium to the… … Lexicon of Cave and Karst Terminology
porosity, effective — 1. The ratio, usually expressed as a percentage of the total volume of voids available for fluid transmission to the total volume of the porous medium . 2. The ratio of the volume of the voids of a soil or rock mass that can be drained… … Lexicon of Cave and Karst Terminology
Porosity — or void fraction is a measure of the void (i.e., empty ) spaces in a material, and is a fraction of the volume of voids over the total volume, between 0–1, or as a percentage between 0–100%. The term is used in multiple fields including… … Wikipedia
secondary porosity — Porosity created after rock formation due to fracturing, leaching, etc … Lexicon of Cave and Karst Terminology
secondary porosity — Смотри вторичная пористость … Энциклопедический словарь по металлургии
interstice — 1. An opening in a rock or soil that is not occupied by solid matter . 2. An opening or space which may be occupied by air, water, or other gaseous or liquid material . Synonymous with void, pore. See also pore; pore space;… … Lexicon of Cave and Karst Terminology
pore space — 1. The total space not occupied by solid soil or rock particles . 2. The space occupied by voids containing gases or liquids in soil or rock samples . See also interstice; porosity; porosity, effective; porosity, primary;… … Lexicon of Cave and Karst Terminology
вторичная пористость — [secondary porosity] пористость (1.) образовванная при отжиге металлов и сплавов. Смотри также: Пористость усадочная пористость первичная пористость остаточная пористость … Энциклопедический словарь по металлургии