Similar Folds, Recumbent Folds, and Gravity Tectonics in Ice and Rocks

@article{Hudleston1977SimilarFR,
  title={Similar Folds, Recumbent Folds, and Gravity Tectonics in Ice and Rocks},
  author={Peter J. Hudleston},
  journal={The Journal of Geology},
  year={1977},
  volume={85},
  pages={113 - 122}
}
  • P. Hudleston
  • Published 1 January 1977
  • Geology
  • The Journal of Geology
Under steady state flow in glaciers, a banding will form and tend towards parallelism with the flow lines in basal regions of high shear. A simple mathematical model shows that departures from the steady state cause a reorientation of the flow lines such that they depart from parallelism with the banding. If a suitable bedrock ridge is present, the banding will subsequently become deformed into subsimilar folds, whose axial surfaces are very nearly parallel to the direction of maximum extension… 

References

SHOWING 1-10 OF 23 REFERENCES
Recumbent Folding in Metamorphic Terranes
ABSTRACT Heterogeneous variation across flow lines in rate of flow within a deforming fluid body results in the development of flow folds, the axial surfaces of which parallel the flow lines. The
Structures at the Base of an Ice Fall
The zone of renewed flow at the base of an ice fall on the Gulkana Glacier, in the eastern Alaska Range, lies below the firn limit, and thus the structures in the perfectly exposed ice can be studied
The motion of thrust sheets
The regional average basal shear stress τ of a thrust sheet of thickness H is equal to the down-surface slope stress ρgHα. Thrusts always move in the direction of surface slope α, even if they are
Analysis of Gravity Sliding and Orogenic Translation
Gravity sliding, major thrusting, and the displacement of large crustal plates are accomplished because strata with the lowest viscosity in a rock sequence readily deform by simple (rectilinear)
Elements of Structural Geology
I The Domain and Content Of Structural Geology.- II Depositional Textures and Structures.- III Non-Diastrophic Structures.- IV Physics of Deformation.- V Environment, Time, and Material.- Appendix:
Internal Structure and Petrofabrics of Gulf Coast Salt Domes
Internal structures and preferred orientation of halite crystals in Grand Saline salt dome, Texas, and Winnfield salt dome, Louisiana, indicate emplacement of the stocks by successive differential
ROLE OF GRAVITY IN OROGENESIS
In elastico-viscous materials, the concept of “viscosity” makes model experiments possible, since time appears in its definition as an independent dimension when gravity is the only force acting on
ON FOLDING DURING THREE-DIMENSIONAL PROGRESSIVE DEFORMATION
  • D. Flinn
  • Geology
    Quarterly Journal of the Geological Society of London
  • 1962
This paper is concerned with the geometry of homogeneous strain in rocks. Equations relating rotation of planes and lines to the deformation of the rock containing them are derived with the aid of
Similar Folds, Buckling, and Great-Circle Patterns
Buckling experiments with layered wax models including anisotropic materials have resulted in folds whose geometry is very close to the condition implied by the term similar. Therefore, when a field
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