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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
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In genetic classification of folds, passive folds don't have any influence of rheological properties?
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Sajan sarthak Best Answer
It has role in classification.. Fold genetic, types on the basis of the mechanics of folding : (1) Flexure folds or true folds, (2) Flow folds or incom- petent folds, (3) Shear folds or slip folds, (4) Folds resulting from vertical movements Bends, Buckles and Flows Fred Donath and Ronald Parker in 1964 (GSA Bulletin) presented a totally different classification of folds based on the mechanism of their formation, for which they considered the ‘mean ductility’ and ‘ductility contrast’ in the folded strata. On this basis, folds are categorised into flexural folding in which layering and mechanical anisotropy between the layers play the dominant role (in other words, mean ductility is low to moderate); passive folding in which interlayer anisotropy is ineffective (mean ductility is high); and quasiflexural folding in which the geometry of the fold appears to be flexural but the overall behaviour of the folded sequence is passive (mean ductility is very high). The last category largely corresponds to disharmonic folding. The first two categories, flexural and passive, can be further subdivided into slip (between layers) and flow (within layers).
Sir,Mechanics means it deals with the action of forces!!? or clarify
yes
Then what is the difference! between Rheological properties and Mechanical properties as Rheological properties tells the function between stress and strain aren't they forces?
Mechanical properties are physical properties that a material exhibits upon the application of forces. Examples of mechanical properties are the modulus of elasticity, tensile strength, elongation, hardness and fatigue limit.
Rheological property is a property of material when force or stress is being applied and the state of matter some what change.