1971
DOI: 10.1180/minmag.1971.038.293.11
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Host control of recrystallized quartz grains

Abstract: SUMMARY. The results of a petrofabric study on recrystallization of quartz in nature are presented and compared with recent experimental work. The orientations of newly recrystallized quartz grains are shown to be dependent on the orientation of host grains from or in which they grew. The results are compatible with the experiments of Hobbs 0968). The orientation of new grains appears to be unrelated to stress.Tr~E experimental work of Hobbs 0968) on the recrystallization of single crystals of quartz showed th… Show more

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Cited by 25 publications
(10 citation statements)
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“…These grains will continue to rotate throughout further deformation, but, since they are rotating largely in response to dislocation motion, their orientations will remain within the same fabric pattern as that oftheir deformed host grain(s). In both naturally and experimentally deformed minerals, fabric patterns of deformed original grains and their recrystallized products are generally indistinguishable (Ransom, 1971;Bell and Etheridge, 1976;Etheridge and Kirby, 1983), providing further support for this recrystallization mechanism. Any form of homogeneous nucleation, whether or not the nucleus orientation is stress-controlled (Av6 Lallement and Carter, 1970), is likely to produce orientations outside the deformed grain fabric.…”
Section: Continued Deformation After Substantial Recrystallizationmentioning
confidence: 86%
See 1 more Smart Citation
“…These grains will continue to rotate throughout further deformation, but, since they are rotating largely in response to dislocation motion, their orientations will remain within the same fabric pattern as that oftheir deformed host grain(s). In both naturally and experimentally deformed minerals, fabric patterns of deformed original grains and their recrystallized products are generally indistinguishable (Ransom, 1971;Bell and Etheridge, 1976;Etheridge and Kirby, 1983), providing further support for this recrystallization mechanism. Any form of homogeneous nucleation, whether or not the nucleus orientation is stress-controlled (Av6 Lallement and Carter, 1970), is likely to produce orientations outside the deformed grain fabric.…”
Section: Continued Deformation After Substantial Recrystallizationmentioning
confidence: 86%
“…With respect to fabric (texture) development, recrystallizcd grains with initial orientations close to that of their deformed host (Hobbs, 1968;Ransom, 1971;Wilson, 1973;Bell and Etheridge, 1976) can be explained by the subgrain rotation model. These grains will continue to rotate throughout further deformation, but, since they are rotating largely in response to dislocation motion, their orientations will remain within the same fabric pattern as that oftheir deformed host grain(s).…”
Section: Continued Deformation After Substantial Recrystallizationmentioning
confidence: 99%
“…The weight of published work thus suggests that dislocation flow processes dominate in shear zones, but this is somewhat misleading, because most of the studies have concentrated on zones in essentially monomineralic rocks, or on the outer (lower strain) parts of zones where dislocation flow dominates even in many polyphase rocks. Many polyphase rocks in retrograde shear zones are characterized, at least in their more highly strained portions, by unstrained, relatively equidimensional grains, low-energy grain shapes, uniform grain sizes, predominant contacts between unlike phases and commonly weak quartz c-axis preferred orientations (Ransom, 1969(Ransom, , 1971Vernon & Ransom, 1971;Bell & Etheridge, 1973. In other words, they are similar to progrude rocks of similar grade and composition.…”
Section: Retrograde Metamorphismmentioning
confidence: 99%
“…The curve for a random population Is Included on the plot. As found by Ransom (1971) and Wilson (1973), there are fewer new grains at angles of 60^ or greater from the host orientation than would be expected for a random population.…”
Section: Im Footwallmentioning
confidence: 56%
“…Figure 13 is a histogram of the c-axis host/subgrain angle for sample BW 34 (cf. Ransom, 1971). The curve for a random population Is Included on the plot.…”
Section: Im Footwallmentioning
confidence: 99%