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- Fault_friction abstract "Fault friction describes the relation of friction to fault mechanics. Rock failure and associated earthquakes are very much a fractal operation (see Characteristic earthquake). The process remains scale-invariant down to the smallest crystal. Thus, the behaviour of massive earthquakes is dependent on the properties of single molecular irregularities or asperities.If we take two clean nano-asperities and bring them together in a vacuum, we will get a cold weld. That is, the crystal tips will fuse as if one (cohesion). In nature these tips are actually covered with a thin film of foreign material. By far, the most important component of this film, is water.If this water is removed, by extreme drying, the rock minerals do not behave at all as expected: they exhibit no fault healing or dynamic friction. The entire behaviour of earthquakes (as we know it) depends on very thin films.After a major earthquake, there starts a process known as fault healing. This is a well-demonstrated phenomenon involving a slow increase in the static coefficient of friction. With our nano-model, it is a matter of slowly pushing away the junk for a good cohesive bond. With typical minerals and water, there is another mechanism, whereby the water causes stress corrosion and weakening of the main asperity body (smoothing the irregularities), allowing more plastic deformation, and more contact.The most important aspect is that this bond-strengthening is time-dependent. For a fault being stressed to the point of an earthquake, these bonds begin to stretch and break. They don’t have time to heal again. Once the critical distance has been achieved, there is a significant strength loss, and the fault begins to slide.Earthquakes only exist because there is a very large loss in frictional strength. It could be that the earthquake \"skids\" are greased by silica gel, the water acts as a standard bearing lubricant, or that there is a \"lift and separate\" mechanism at work.".
- Fault_friction thumbnail Faultdyn1.jpg?width=300.
- Fault_friction wikiPageExternalLink KarnerMaroneEvans2007.pdf.
- Fault_friction wikiPageExternalLink Byerlee,%201978.pdf.
- Fault_friction wikiPageID "2928576".
- Fault_friction wikiPageLength "10721".
- Fault_friction wikiPageOutDegree "17".
- Fault_friction wikiPageRevisionID "632501144".
- Fault_friction wikiPageWikiLink Category:Seismology.
- Fault_friction wikiPageWikiLink Cohesion_(chemistry).
- Fault_friction wikiPageWikiLink Cold_welding.
- Fault_friction wikiPageWikiLink Crystal.
- Fault_friction wikiPageWikiLink Earthquake_prediction.
- Fault_friction wikiPageWikiLink Fault_mechanics.
- Fault_friction wikiPageWikiLink File:Faultdyn1.jpg.
- Fault_friction wikiPageWikiLink File:Faultdyn2.jpg.
- Fault_friction wikiPageWikiLink Fractal.
- Fault_friction wikiPageWikiLink Friction.
- Fault_friction wikiPageWikiLink Mineral.
- Fault_friction wikiPageWikiLink Pascal_(unit).
- Fault_friction wikiPageWikiLink Porosity.
- Fault_friction wikiPageWikiLink Pseudotachylite.
- Fault_friction wikiPageWikiLink Vacuum.
- Fault_friction wikiPageWikiLink Water.
- Fault_friction wikiPageWikiLinkText "Fault friction".
- Fault_friction wikiPageUsesTemplate Template:Cite_journal.
- Fault_friction wikiPageUsesTemplate Template:Reflist.
- Fault_friction subject Category:Seismology.
- Fault_friction comment "Fault friction describes the relation of friction to fault mechanics. Rock failure and associated earthquakes are very much a fractal operation (see Characteristic earthquake). The process remains scale-invariant down to the smallest crystal. Thus, the behaviour of massive earthquakes is dependent on the properties of single molecular irregularities or asperities.If we take two clean nano-asperities and bring them together in a vacuum, we will get a cold weld.".
- Fault_friction label "Fault friction".
- Fault_friction sameAs Q5438156.
- Fault_friction sameAs m.08d8qt.
- Fault_friction sameAs Q5438156.
- Fault_friction wasDerivedFrom Fault_friction?oldid=632501144.
- Fault_friction depiction Faultdyn1.jpg.
- Fault_friction isPrimaryTopicOf Fault_friction.
