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Journal Article
Journal: Geology
Published: 01 September 1981
Geology (1981) 9 (9): 419-424.
...Raymond C. Fletcher; David D. Pollard Abstract We propose that discrete solution surfaces originate at stress concentrations and propagate through rock as anticracks . As material is dissolved and removed, the anticrack walls move toward each other; stress and displacement fields are identical...
Journal Article
Journal: Geology
Published: 01 February 1988
Geology (1988) 16 (2): 182-185.
...Bryan Tapp; John Cook Abstract Three independent lines of evidence in samples from the Conococheague Formation, northwestern Virginia, show that solution cleavage zones are best explained by the propagation (anticrack) model of solution zone formation. (1) Anticrack model predictions of the plastic...
Journal Article
Journal: AAPG Bulletin
Published: 01 July 2008
AAPG Bulletin (2008) 92 (7): 853-867.
... a comprehensive framework that stresses their similarities instead of their differences. We review and assess the classical terms for localized geologic structures, followed by a comprehensive nomenclature that accounts for joints, faults, fractures, anticracks, shear zones, and deformation bands in compact...
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Transformation-induced faulting  A.  Spinel-containing <b>anticracks</b> growing o...
in > Elements
Published: 01 January 2005
FIGURE 2 Transformation-induced faulting A. Spinel-containing anticracks growing on grain boundaries of Mg 2 GeO 4 olivine (arrows) (modified after Green 1994 ). B. Earthquake frequency as a function of depth (modified after Frohlich 1989 ).
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Transformation-induced faulting  A.  Spinel-containing <b>anticracks</b> growing o...
in > Elements
Published: 01 January 2005
FIGURE 2 Transformation-induced faulting A. Spinel-containing anticracks growing on grain boundaries of Mg 2 GeO 4 olivine (arrows) (modified after Green 1994 ). B. Earthquake frequency as a function of depth (modified after Frohlich 1989 ).
Image
Nucleation and growth of <b>anticracks</b> is analogous to nucleation and growth o...
Published: 01 January 2002
Figure 7. Nucleation and growth of anticracks is analogous to nucleation and growth of fluid-filled cracks during dehydration under stress (compare with Fig. 4 ). In this case, formation of a nucleus of the dense polymorph induces strong compressive stress concentrations and a small rise in T
Image
Comparison between low-pressure brittle failure of Westerly Granite (left) ...
Published: 01 January 2002
Figure 9. Comparison between low-pressure brittle failure of Westerly Granite (left) and high-pressure anticrack failure of Mg 2 GeO 4 undergoing the olivine→spinel transformation. Note that brittle failure produces an exponentially increasing number of acoustic emissions that rises very high
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Classification of structural discontinuities in relation to the porosity of...
Published: 01 July 2008
, anticracks (stylolites) may form given appropriate conditions of pressure, temperature, and host-rock composition. Although sharp discontinuities can also form in porous rocks, tabular discontinuities rarely, if ever, occur in compact rocks.
Journal Article
Published: 01 May 2013
American Mineralogist (2013) 98 (5-6): 1084-1085.
..., the anticrack theory of deep-focus earthquakes was formulated. The faulting/earthquake discovery was shortly followed by confirmation of the anticrack faulting mechanism to 14 GPa during the olivine–wadsleyite transformation in mantle olivine. Acoustic emission detection during experimentally produced faulting...
Journal Article
Published: 01 January 2002
Reviews in Mineralogy and Geochemistry (2002) 51 (1): 181-199.
...Figure 7. Nucleation and growth of anticracks is analogous to nucleation and growth of fluid-filled cracks during dehydration under stress (compare with Fig. 4 ). In this case, formation of a nucleus of the dense polymorph induces strong compressive stress concentrations and a small rise in T...
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Journal Article
Published: 01 May 2013
American Mineralogist (2013) 98 (5-6): 1086-1087.
... to jadeite + coesite as a proxy for ringwoodite breakdown at the base of the MTZ, that the anticrack faulting mechanism cannot function during such decomposition reactions, thereby explaining why deep earthquakes stop at the base of the upper mantle. Haemyeong demonstrated that dehydration embrittlement...
FIGURES
Journal Article
Journal: Elements
Published: 01 January 2005
Elements (2005) 1 (1): 31-37.
...FIGURE 2 Transformation-induced faulting A. Spinel-containing anticracks growing on grain boundaries of Mg 2 GeO 4 olivine (arrows) (modified after Green 1994 ). B. Earthquake frequency as a function of depth (modified after Frohlich 1989 ). ...
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Journal Article
Published: 01 October 1983
Journal of the Geological Society (1983) 140 (5): 725-740.
... and synthetic quartzites J. Geol. Chicago 1964 72 461 70 Fletcher R. C. Quantitative theory for the development of metamorphic differentiation in the formation of crenulation cleavage Geology 1977 5 185 7 Fletcher R. C. Pollard D. D. Anticrack model for pressure solution...
Journal Article
Journal: AAPG Bulletin
Published: 01 November 2009
AAPG Bulletin (2009) 93 (11): 1489-1501.
... paleostress orientation. Fletcher and Pollard (1981) showed that stylolites can be treated as stress-corrosion anticracks and are therefore a type of fracture. When faults (shear fractures) form in undamaged rock, they initiate as conjugate sets that are oriented parallel to the intermediate stress axis...
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Journal Article
Published: 01 August 2012
Bulletin of the Seismological Society of America (2012) 102 (4): 1829-1849.
... fine‐grained anticracks are formed at a narrow pressure range of 1–2 GPa and a temperature interval of 1100°–1200° K during the phase transition from metastable olivine to a spinel structure. The propagation and linking‐up of spinel‐filled anticracks can account for the double‐couple component of deep...
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Journal Article
Journal: Geology
Published: 01 January 2003
Geology (2003) 31 (1): 11-14.
... , p. 327 – 343 . Fletcher , R. , and Pollard , D. , 1981 , Anticrack model for pressure solution surfaces : Geology , v. 9 p. 419 - 424 . Ghisetti , F. , and Vezzani , L. , 1997 , Interfering paths of deformation and development of arcs in the fold-and-thrust belt...
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Journal Article
Published: 01 October 2015
Italian Journal of Geosciences (2015) 134 (3): 423-441.
... along discrete tabular bands forming pss, its mechanical failure mode is more accurately described as a closing-mode fracturing ( F letcher & P ollard , 1981 ). Conceptualizing pressure solution seams as closing-mode fractures (also coined as anticracks, localized volume reduction structures...
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Journal Article
Journal: GSA Bulletin
Published: 10 December 2018
GSA Bulletin (2018) 131 (7-8): 1239-1254.
... et al., 1983 ) considers that stylolites are related to local dissolution under an applied stress field and that the lateral propagation is controlled by the stress concentration at a stylolite’s tips (anticrack model, Fletcher and Pollard, 1981 ). This model was questioned by Aharonov and Katsman...
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Journal Article
Journal: AAPG Bulletin
Published: 01 March 2005
AAPG Bulletin (2005) 89 (3): 383-401.
... surfaces ( Figure 2a ). In the initial stage of the stylolite formation, very small stylolites with a length of a few micrometers appear. Growth continues at the stylolite tips where the pressure-solution surfaces propagate as anticracks through the rock in a manner similar to faults ( Fletcher and Pollard...
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Journal Article
Journal: Geology
Published: 01 October 2015
Geology (2015) 43 (10): 871-874.
... mechanochemical coupling : Journal of Physical Chemistry , v. 93 , p. 2842 – 2848 , doi:10.1021/j100344a028. Fletcher R.C. Pollard D.D. , 1981 , Anticrack model for pressure solution surfaces : Geology , v. 9 , p. 419 – 424 , doi:10.1130/0091-7613(1981)9<419:AMFPSS>2.0.CO;2...
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