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Differential stress magnitudes during regional deformation and metamorphism: Upper bound imposed by tensile fracturing
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1983
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EngineeringMechanical EngineeringWork HardeningEarth ScienceCrustal DeformationMetamorphic PetrologyStressstrain AnalysisDifferential Stress MagnitudesRegional TectonicsTensile StrengthStrain LocalizationGeologyPlasticityUpper BoundMechanical DeformationRock PropertiesTectonicsStructural GeologyTensile FracturingCivil EngineeringGeomechanicsEconomic GeologyRock MechanicsPetrologyMechanics Of Materials
Research Article| April 01, 1983 Differential stress magnitudes during regional deformation and metamorphism: Upper bound imposed by tensile fracturing M. A. Etheridge M. A. Etheridge 1Department of Earth Sciences, Monash University, Clayton, Victoria 3168, Australia Search for other works by this author on: GSW Google Scholar Geology (1983) 11 (4): 231–234. https://doi.org/10.1130/0091-7613(1983)11<231:DSMDRD>2.0.CO;2 Article history first online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation M. A. Etheridge; Differential stress magnitudes during regional deformation and metamorphism: Upper bound imposed by tensile fracturing. Geology 1983;; 11 (4): 231–234. doi: https://doi.org/10.1130/0091-7613(1983)11<231:DSMDRD>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Veins occupying tensile fractures are a common feature of metamorphic rocks of all grades. It can be shown in many cases that such veins are synmetamorphic and that they underwent repeated cycles of fracturing and healing throughout deformation and foliation development. Theoretical failure models have predicted that tensile failure is limited to differential stresses less than four times the tensile strength of the material (σ1−σ3 ⩽ 4T), and this condition can therefore be used to place an upper bound on differential stress intensities during deformation and foliation development where they are concurrent with vein formation. The tensile strengths of rocks are generally less than 10 MPa, and in the presence of a high temperature metamorphic fluid, a value of 5 MPa may be more reasonable, due to subcritical crack growth. It is thus concluded that differential stress intensities during crustal orogenesis will be less than 40 MPa, and they may be lower than 20 MPa. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.