The estimation of finite strain from the orientation distribution of passively deformed linear markers: Eigenvalue relationships

Harvey, P. K.; Laxton, R. R.

doi:10.1016/0040-1951(80)90283-8

Cited by 45 publications

(16 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Therefore, this method was adequate for comparing biotite mineral fabric with magnetic fabric. Fabric ellipses aspect ratios were then created from the particle orientation data according to the method described by Benn & Allard (1988), using the normalized orientation tensor (Harvey & Laxton 1980), where x and y are the direction cosines of the major axes of mineral grains: l 2 EXy'…”

Section: Particle Analysismentioning

confidence: 99%

Magnetic fabric and microstructure of a mylonite: example from the Bitterroot shear zone, western Montana

Sidman

Ferré

Teyssier

et al. 2005

View full text Add to dashboard Cite

show abstract

Section: Particle Analysismentioning

confidence: 99%

Magnetic fabric and microstructure of a mylonite: example from the Bitterroot shear zone, western Montana

Sidman

Ferré

Teyssier

et al. 2005

View full text Add to dashboard Cite

show abstract

“…For (d) and (f) thin sections, the redrawn plagioclase lath pictures are given at the bottom with the corresponding rose of direction diagram. For the rose diagrams, lines correspond to the long axis of the mean ellipse, bold lines are the maximum direction of the distribution, and dashed bold lines represent the mean orientation given by the method of Harvey & Laxton (1980).…”

Section: Thin‐section Analysismentioning

confidence: 99%

Determination of flow directions by combining AMS and thin-section analyses: implications for Oligocene volcanism in the Kerguelen Archipelago (southern Indian Ocean)

Plenier

Camps

Henry³

et al. 2004

Geophysical Journal International

View full text Add to dashboard Cite

International audienceWe report an anisotropy of magnetic susceptibility (AMS) study carried out on seven Oligocene volcanic sections widely distributed on the surface of the Kerguelen Archipelago. The statistical results at flow scale and at section scale were checked with AMS density diagrams and thin-section analysis. Because of the axis permutations frequently observed for lava flows, two possible flow directions were nicely defined for the majority of the sections. We then used two alternative approaches (imbrication of the minimum axis and symmetry of the AMS distribution) to infer a flow direction for each section. These two methods and thin-section analysis not being decisive for choosing between the two solutions, geological and geomorphological observations were finally used to obtain confident interpretations. The results of this study enable the supposed eruptive centres of the Kerguelen Archipelago to be located more precisely

show abstract

“…The magnitudes and orientations of the principal axes of the anisotropy of magnetic susceptibility ellipsoids, Ki, 2 Ki2 2 Ki3, were determined for each specimen i of a station (i = 1,4). The magnitudes and orientations of the long ( K , ) , intermediate (K2) and short (K3) axes of the average anisotropy of magnetic susceptibility ellipsoid of a given station were obtained from K,,, (i = 1,4; j = 1, 3) by a classical eigen-vector procedure (Harvey & Laxton 1980). The susceptibility magnitude of the station is the arithmetical average K = 1/3(K, +K, + K3).…”

Section: Data Acquisitionmentioning

confidence: 99%

Two-stage deformation of the Mont-Louis-Andorra granite pluton (Variscan Pyrenees) inferred from magnetic susceptibility anisotropy

Bouchez

Gleizes

1995

JGS

View full text Add to dashboard Cite

The Mont-Louis-Andorra granodiorite pluton, Eastern Pyrenees (France, Andorra and Spain) was the subject of a thorough study of its internal structures, principally the measurement of the anisotropy of its magnetic susceptibility and the classification of its microstructures. Regularly spaced sampling (281 sites) allowed the precise mapping of the susceptibility magnitudes, consistent with mapped rock types. The magnetic structures fall into two distinct families which occur in separate parts of the pluton and have different microstructures. Family I is observed almost everywhere and has close to horizontal lineations, remarkably constant in NE-SW azimuth. Magmatic to submagmatic microstructures characterize these rocks. In contrast, family I1 is confined within NW-SE-[rending corridors, where moderate to steep NW-plunges of the lineations are recorded, and subsolidus microstructures are observed. Magnetic structures of family I are argued to equate with the kinematic framework of the deforming magma during its emplacement. Family I1 structures represent a late to post-consolidation reworking, and therefore record a second stage of deformation in the pluton. It is concluded that magma emplacement was related to a NE-SW-trending strike-slip and/or thrust fault system, coeval with the SW-verging thrust episode documented in the Pyrenees. The second stage corresponds to dextral shear movements with a thrust component on NW-SE-striking planes.Corridors containing family I1 structures are shear zones responsible for dissection of the massif into three blocks, the eastern block representing the former base, and the western block the top of the pluton. Restoration of the pluton's shape along these corridors demonstrates the importance of the early Variscan NE-SW kinematic direction. Because the family I1 structures that form shear zones affecting the pluton have similar orientation and kinematics as the compressive, steep main-phase of deformation ubiquitous in the Pyrenees, the pluton of Mont-Louis-Andorra was probably emplaced before this main-phase of deformation. NE 04" mean lineation 308" NW 35" mean foliation 60" NW 44" mean foliation 92" NW 53' Fig. 3. Magnetic structures of the Mont-Louis-Andorra pluton in map view and orientation diagrams, distinguishing family I and family 11. (a) Lineations; (b) foliations.at University of St Andrews on March 23, 2015 http://jgs.lyellcollection.org/ Downloaded from B mattriel dtvonien htttropique dans les Pyrtntes aritgeoises. Comptes Rendus de I'AcadLmie Sciences, Paris, S&. 11, 302, 969-974. BORRADAILE, G.J. 1988. Magnetic susceptibility, petrofabrics and strain.

show abstract

The estimation of finite strain from the orientation distribution of passively deformed linear markers: Eigenvalue relationships

Cited by 45 publications

References 5 publications

Magnetic fabric and microstructure of a mylonite: example from the Bitterroot shear zone, western Montana

Magnetic fabric and microstructure of a mylonite: example from the Bitterroot shear zone, western Montana

Determination of flow directions by combining AMS and thin-section analyses: implications for Oligocene volcanism in the Kerguelen Archipelago (southern Indian Ocean)

Two-stage deformation of the Mont-Louis-Andorra granite pluton (Variscan Pyrenees) inferred from magnetic susceptibility anisotropy

Contact Info

Product

Resources

About