Numerical estimation of the initial hinge-line irregularity required for the development of sheath folds: A pure shear model

Journal of Structural Geology

Volumn 31, Issue 10, 2009, Pages 1161-1173

  Mandal, Nibir ^a   Mitra, Atin Kumar ^b   Sarkar, Shamik ^a   Chakraborty, Chandan ^c  

^a INDIAN INSTITUTE OF SCIENCE EDUCATION AND RESEARCH KOLKATA   (India)

^b J K College   (India)

^c INDIAN STATISTICAL INSTITUTE   (India)

Author keywords

Curvature accentuation; Hinge line; Non cylindricity; Quadratic elongations; Viscosity ratio

Indexed keywords

CURVATURE ACCENTUATION; CYLINDRICITY; FINITE STRAIN; GEOMETRICAL IRREGULARITIES; IRREGULARITY FACTOR; K-VALUES; LAYERED SYSTEMS; MECHANICAL BENDING; NON-CYLINDRICAL; NON-CYLINDRICITY; NUMERICAL ESTIMATION; NUMERICAL RESULTS; PASSIVE LAYER; PROGRESSIVE DEFORMATION; PURE SHEAR; QUADRATIC ELONGATIONS; SHEAR ZONE; SHEATH FOLD; STRAIN RATIOS; THREE DIMENSIONAL FINITE ELEMENT MODEL; VISCOSITY CONTRAST; VISCOSITY RATIO; VISCOSITY RATIOS;

DEFORMATION; VISCOSITY;

FINITE ELEMENT METHOD;

CURVATURE; DEFORMATION; ESTIMATION METHOD; FINITE ELEMENT METHOD; FOLD; NUMERICAL METHOD; SHEAR ZONE; VISCOSITY;

EID: 70350393509     PISSN: 01918141     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jsg.2009.06.013     Document Type: Article

References (48)

1. Alsop G.I., and Holdsworth R.E. Vergence and facing patterns in large-scale sheath folds. Journal of Structural Geology 21 (1999) 1335-1349
2. Alsop G.I., and Holdsworth R.E. The geometry and kinematics of flow perturbation folds. Tectonophysics 350 (2002) 99-125
3. Alsop G.I., and Holdsworth R.E. The geometry and topology of natural sheath folds: a new tool for structural analysis. Journal of Structural Geology 26 (2004) 1561-1589
4. Alsop G.I., and Holdsworth R.E. Sheath folds as discriminators of bulk strain type. Journal of Structural Geology 28 (2006) 1588-1606
5. Alsop G.I., and Holdsworth R.E. Flow perturbation folding in shear zones. In: Ries A.C., Butler R.W.H., and Graham R.D. (Eds). Deformation of the Continental Crust: the Legacy of Mike Coward. Geological Society, London, Special Publications vol. 272 (2007) 77-103
6. Alsop G.I., and Carreras J. The structural evolution of sheath folds: a case study from Cap de Creus. Journal of Structural Geology 29 (2007) 1915-1930
7. Alsop G.I., Holdsworth R.E., and McCaffrey K.J.W. Scale invariant sheath folds in salt, sediments and shear zones. Journal of Structural Geology 29 (2007) 1585-1604
8. Biot M.A. Folding instability of a layered visco-elastic medium under compression. Proceedings of the Royal Society of London Series A 242 (1957) 444-454
9. Biot M.A. Mechanics of Incremental Deformation (1965), John Wiley & Sons, Inc., New York 504 pp.
10. Bell T.H. Progressive deformation and reorientation of fold axes in a ductile mylonite zone: the Woodroffe thrust. Tectonophysics 44 (1978) 285-321
11. Carreras J., Estrada A., and White S. The effects of folding on the C-axis fabrics of a quartz mylonite. Tectonophysics 39 (1977) 3-24
12. Carreras J., Druguet E., and Griera A. Shear zone-related folds. Journal of Structural Geology 27 (2005) 1229-1251
13. Cobbold P.R., and Quinquis H. Development of sheath folds in shear regimes. Journal of Structural Geology 2 (1980) 119-126
14. Dubey A.K., and Cobbold P.R. Non-cylindrical flexural slip folds in nature and experiments. Tectonophysics 38 (1977) 223-239
15. Escher A., and Watterson J. Stretching fabrics, folds and crustal shortening. Tectonophysics 22 (1974) 223-231
16. Ez V. When shearing is a cause of folding. Earth Science Reviews 51 (2000) 155-172
17. Ghosh S.K. Structural Geology: Fundamentals and Modern Developments (1993), Pergamon Press
18. Ghosh S.K., and Ramberg H. Buckling experiments on intersecting fold patterns. Tectonophysics 5 (1968) 89-105
19. Ghosh S.K., and Sengupta S. Successive development of plane noncylindrical folds in progressive deformation. Journal of Structural Geology 6 (1984) 703-709
20. Ghosh S.K., and Sengupta S. Progressive development of structures in a ductile shear zone. Journal of Structural Geology 9 (1987) 277-287
21. Goscombe B. Intense non-coaxial shear and the development of mega-scale sheath folds in the Arunta Block, Central Australia. Journal of Structural Geology 13 (1991) 299-318
22. Hibbard J., and Karig D.E. Sheath-like folds and progressive fold deformation in Tertiary sedimentary rocks of the Shimanto accretionary complex, Japan. Journal of Structural Geology 9 (1987) 845-857
23. Holdsworth R.E., and Pinheiro R.V.L. The anatomy of shallow-crustal transpressional structures: insights from the Archean Carajás Fault Zone, Amazon, Brazil. Journal of Structural Geology 22 (2000) 1105-1123
24. Holdsworth R.E., Tavarnelli E., Clegg P., Pinheiro R.V.L., Jones R.R., and McCaffrey K.J.W. Domainal defomation patterns and strain partitioning during transpression: an example from the Southern Uplands terrane, Scotland. Journal of the Geological Society, London 159 (2002) 401-415
25. Hudleston P.J. An analysis of "single-layer" folds developed experimentally in viscous media. Tectonophysics 16 (1973) 189-214
26. Jiang D., and Williams P.F. When do drag folds not develop into sheath folds in shear zones?. Journal of Structural Geology 21 (1999) 577-583
27. Kuiper Y.D., Jiang D., and Lin S. Relationship between non-cylindrical fold geometry and the shear direction in monoclinic and triclinic shear zones. Journal of Structural Geology 29 (2007) 1022-1033
28. Mandal N., Samanta S.K., and Chakraborty C. Problem of folding in ductile shear zones: a theoretical and experimental investigation. Journal of Structural Geology 26 (2004) 475-489
29. Marques F.G., and Cobbold P.R. Development of highly non-cylindrical folds around rigid ellipsoidal inclusions in bulk simple shear: natural examples and experimental modelling. Journal of Structural Geology 17 (1995) 589-602
30. Marques F.O., Guerreiro S.M., and Fernandes A.R. Sheath fold development with viscosity contrast: analogue experiments in bulk simple shear. Journal of Structural Geology 30 (2008) 1348-1353
31. Mies J.W. Structural analysis of sheath folds in the Sylacauga marble group, Talladega slate belt, southern Appalachians. Journal of Structural Geology 15 (1993) 983-993
32. Minnigh L.D. Structural analysis of sheath-folds in a meta-chert from the Western Italian Alps. Journal of Structural Geology 1 (1979) 275-282
33. Mishra S. Precambrian chronostratigraphic growth of Singhbhum - Orissa craton, Eastern Indian shield: an alternative model. Journal of Geological Society of India 67 (2006) 356-378
34. Mukhopadhyay D. The Archaean nucleus of Singhbhum: the present state of knowledge. Gondwana Research 4 (2001) 307-318
35. Passchier C.W., and Druguet E. Numerical modelling of asymmetric boudinage. Journal of Structural Geology 24 (2002) 1789-1803
36. Quinquis H., Audren C., Brun J.P., and Cobbold P. Intensive progressive shear in Ile de Groix blueschists and 828 compatibility with subduction or obduction. Nature 274 (1978) 43-45
37. Ramberg H. Selective buckling of composite layers with contrasted rheological properties, a theory for the formation of several orders of folds. Tectonophysics 1 (1964) 307-341
38. Ramsay J.G. Folding and Fracturing of Rocks (1967), McGraw-Hill, New York
39. Ramsay J.G. Shear zone geometry: a review. Journal of Structural Geology 2 (1980) 83-99
40. Ramsay J.G., and Huber M.I. The techniques of modern structural geology. Folds and Fractures vol. 2 (1987), Academic Press
41. Roberts A. Fold and thrust structures in the Kintradwell "Boulder beds", Moray Firth. Scottish Journal of Geology 25 (1989) 173-186
42. Rosas F.M., Marques F.O., Luz A., and Coelho S. Sheath folds formed by drag induced by rotation of rigid inclusions in viscous simple shear flow: nature and experiment. Journal of Structural Geology 24 (2002) 45-55
43. Sanderson D.J. The development of fold axes oblique to the regional trend. Tectonophysics 30 (1973) 35-54
44. Searle M.P., and Alsop G.I. Eye to eye with a mega-sheath fold: case study from Wadi Mayh, northern Oman Mountains. Geology 35 (2007) 1043-1046
45. Skjernaa L. Tubular folds and sheath folds: definitions and conceptual models for their development, with examples from the Grapesvare area, northern Sweden. Journal of Structural Geology 11 (1989) 689-703
46. Tobisch O.T. Large scale basin and dome pattern resulting from the interference of major folds. Bulletin of Geological Society of America 77 (1966) 415-419
47. Turner F.J., and Weiss L.E. Structural Analysis of Metamorphic Tectonites (1963), McGraw-Hill Book Co.
48. Williams G.D., and Chapman T.J. The geometrical classification of non-cylindrical folds. Journal of Structural Geology 1 (1979) 181-185