Percolation Theory, Thermoelasticity, and Discrete Hydrothermal Venting in the Earth's Crust
- 20 March 1992
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 255 (5051) , 1564-1567
- https://doi.org/10.1126/science.255.5051.1564
Abstract
As hydrothermal fluid ascends through a network of cracks into cooler crust, heat is transferred from the fluid to the adjacent rock. The thermal stresses caused by this heating close cracks that are more or less vertical. This heating may affect network connections and destroy the permeable crack network. Thermoelastic stresses caused by a temperature difference of ∼100°C can decrease the interconnectivity of a crack network to the percolation threshold. If the temperature is slightly less, thermoelastic stresses may focus the discharge in hydrothermal systems into discrete vents.Keywords
This publication has 19 references indexed in Scilit:
- Block-tilting, transfer faults, and structural control of magmatic and hydrothermal processesin the TAG area, Mid-Atlantic Ridge 26°NGSA Bulletin, 1990
- Thermoelasticity and the formation of black smokersGeophysical Research Letters, 1990
- Fluid percolation through single fracturesGeophysical Research Letters, 1988
- Percolation threshold of a random array of discs: a numerical simulationJournal of Physics A: General Physics, 1986
- Detailed geological mapping by submersible of the East Pacific Rise axial graben near 13°NEarth and Planetary Science Letters, 1986
- Universal percolation-threshold limits in the continuumPhysical Review B, 1985
- Excluded volume and its relation to the onset of percolationPhysical Review B, 1984
- Numerical calculations of critical densities for lines and planesJournal of Physics A: General Physics, 1984
- East Pacific Rise: Hot Springs and Geophysical ExperimentsScience, 1980
- THE EFFECTS OF SHAPE ON THE INTERACTION OF COLLOIDAL PARTICLESAnnals of the New York Academy of Sciences, 1949