DOI: 10.1029/jb085ib08p04337. Mechanics of discontinuous faults

10.1029/jb085ib08p04337

Crossref journal-article

American Geophysical Union (AGU)

Journal of Geophysical Research: Solid Earth (13)

Abstract

Fault traces consist of numerous discrete segments, commonly arranged as echelon arrays. In some cases, discontinuities influence the distribution of slip and seismicity along faults. To analyze fault segments, we derive a two‐dimensional solution for any number of nonintersecting cracks arbitrarily located in a homogeneous elastic material. The solution includes the elastic interaction between cracks. Crack surfaces are assumed to stick or slip according to a linear friction law. For an array of echelon cracks the ratio of maximum slip to array length significantly underestimates the difference between the driving stress and frictional resistance. The ratio of maximum slip to crack length slightly overestimates this difference. Stress distributions near right‐ and left‐stepping echelon discontinuities differ in two important ways. For right lateral shear and left‐stepping cracks, normal tractions on the overlapped crack ends increase and inhibit frictional sliding, whereas for right‐stepping cracks, normal tractions decrease and facilitate sliding. The mean compressive stress between right‐stepping cracks also decreases and promotes the formation of secondary fractures, which tend to link the cracks and allow slip to be transferred through the discontinuity. For left‐stepping cracks the mean stress increases; secondary fracturing is more restricted and tends not to link the cracks. Earthquake swarms and aftershocks cluster near right steps along right lateral faults. Our results suggest that left steps store elastic strain energy and may be sites of large earthquakes. Opposite behavior results if the sense of shear is left lateral.

Bibliography

Segall, P., & Pollard, D. D. (1980). Mechanics of discontinuous faults. Journal of Geophysical Research: Solid Earth, 85(B8), 4337â4350. Portico.

Authors 2

P. Segall (first)
D. D. Pollard (additional)

References 65 Referenced 814

Aki K. A quantitative model of stress in a seismic region as a basis for earthquake prediction Proceedings of Conference III: Fault Mechanics and Its Relation to Earthquake PredictionOpen File Rep. 78‐380 7–13U.S. Geological Survey Menlo Park Calif. 1978.
Allen C. R. Active faulting in northern Turkey Contrib. 1577 32 Div. of Geol. Sci. Calif. Inst. of Technol. Pasadena 1968.
10.1029/JB085iB07p03867
Aydin A. Faulting in sandstone Ph.D. thesis 246 pp. Stanford Univ. Stanford Calif. 1977.
10.1126/science.205.4413.1375
10.1785/BSSA0700010185 / Bull. Seismol. Soc. Amer. / Implication of seismicity for failure of a section of the San Andreas fault by Bakun W. H. (1980)
Bonilla M. G. Historic faulting‐map patterns relation to subsurface faulting and relation to pre‐existing faults Proceedings of Conference VIII: Analysis of Actual Fault Zones in BedrockOpen File Rep. 79‐1239 36–65U.S. Geological Survey Menlo Park Calif. 1979.
10.1007/BF01592907
Brown R. D. Map showing recently active breaks along the San Andreas fault between the northern Gabilan Range and Cholame Valley California U.S. Geol. Surv. Misc. Geol. Inv. Map 1–575 scale 1: 62 500 1970. (10.3133/ofr7044)
10.1785/BSSA0510030355 / Bull. Seismol. Soc. Amer. / The deformation of the ground around surface faults by Chinnery M. A. (1961)
10.1785/BSSA0530050921 / Bull. Seismol. Soc. Amer. / The stress changes that accompany strike‐slip faulting by Chinnery M. A. (1963)
Chinnery M. A. Theoretical fault modelsin A Symposium on Processes in the Focal RegionDominion ObservatoryOttawa 1968. (10.4095/315467)
{'key': 'e_1_2_1_14_1', 'first-page': '55', 'article-title': 'Surface rupture along the Coyote Creek fault', 'volume': '787', 'author': 'Clark M. M.', 'year': '1972', 'journal-title': 'U.S. Geol. Surv. Prof Pap.'} / U.S. Geol. Surv. Prof Pap. / Surface rupture along the Coyote Creek fault by Clark M. M. (1972)
Clark M. M. Map showing recently active breaks along the Garlock and associated faults California U.S. Geol. Surv. Misc. Geol. Inv. Map I‐741 scale 1:24 000 1973.
10.1080/00288306.1966.10420198
10.1115/1.3423557
10.1785/BSSA0660030843 / Bull. Seismol. Soc. Amer. / Seismicity of northern Anatolia by Dewey J. W. (1976)
10.1029/JB083iB08p03940
10.1007/978-94-009-9553-6_9
{'key': 'e_1_2_1_21_1', 'first-page': '1151', 'article-title': 'Aftershocks of the 1966 Parkfield‐Cholame, California, earthquake: A detailed study', 'volume': '60', 'author': 'Eaton J. P.', 'year': '1970', 'journal-title': 'Bull. Seismol. Soc. Amer.'} / Bull. Seismol. Soc. Amer. / Aftershocks of the 1966 Parkfield‐Cholame, California, earthquake: A detailed study by Eaton J. P. (1970)
{'key': 'e_1_2_1_22_1', 'first-page': '547', 'volume-title': 'Proceedings of the 4th U.S. National Congress on Applied Mechanics', 'author': 'Erdogan F.', 'year': '1962'} / Proceedings of the 4th U.S. National Congress on Applied Mechanics by Erdogan F. (1962)
10.1130/0016-7606(1979)90<47:AOAMFZ>2.0.CO;2
10.1007/BF01637120
10.1029/JB084iB05p02235
10.1029/JB082i008p01347
10.1007/978-94-017-2260-5_2
{'key': 'e_1_2_1_28_1', 'volume-title': 'Fundamentals of Rock Mechanics', 'author': 'Jaeger J. C.', 'year': '1969'} / Fundamentals of Rock Mechanics by Jaeger J. C. (1969)
Johnson C. E. Seismotectonics of the Imperial Valley of southern California Ph.D. thesis Calif. Inst. of Technol. Pasadena 1979.
{'key': 'e_1_2_1_30_1', 'first-page': '1132', 'article-title': 'Tectonic implications of the Brawley earthquake swarm, Imperial Valley, California, January, 1975', 'volume': '66', 'author': 'Johnson C. E.', 'year': '1976', 'journal-title': 'Bull. Seismol. Soc. Amer.'} / Bull. Seismol. Soc. Amer. / Tectonic implications of the Brawley earthquake swarm, Imperial Valley, California, January, 1975 by Johnson C. E. (1976)
{'key': 'e_1_2_1_31_1', 'volume-title': 'The Imperial Valley, CA, Earthquake of Oct. 15, 1979', 'author': 'Johnson C. E.', 'year': '1980'} / The Imperial Valley, CA, Earthquake of Oct. 15, 1979 by Johnson C. E. (1980)
{'key': 'e_1_2_1_32_1', 'volume-title': 'Problems of Continuum Mechanics', 'author': 'Koiter W. T.', 'year': '1961'} / Problems of Continuum Mechanics by Koiter W. T. (1961)
10.1016/0148-9062(79)90773-3
Lachenbruch A. H. J. H.Sass Thermomechanical aspects of the San Andreas Fault system Proceedings of the Conference on Tectonic Problems of the San Andreas Fault SystemR. L.Kovach A.Nur School of Earth Sciences Stanford University Stanford Calif. 1973.
{'key': 'e_1_2_1_35_1', 'first-page': '54', 'article-title': 'The relation of the Parkfield foreshocks to the initiation and extent of rupture', 'volume': '45', 'author': 'Lindh A.', 'year': '1974', 'journal-title': 'Earthquake Notes'} / Earthquake Notes / The relation of the Parkfield foreshocks to the initiation and extent of rupture by Lindh A. (1974)
{'key': 'e_1_2_1_36_1', 'article-title': 'Control of rupture by fault geometry during the 1966 Parkfield earthquake', 'author': 'Lindh A.', 'year': '1980', 'journal-title': 'Bull. Seismol. Soc. Amer.'} / Bull. Seismol. Soc. Amer. / Control of rupture by fault geometry during the 1966 Parkfield earthquake by Lindh A. (1980)
{'key': 'e_1_2_1_37_1', 'first-page': '956', 'article-title': 'Preliminary investigation of core material from U.S.G.S. Dry Valley no. 1 well, San Andreas Fault (abstract)', 'volume': '60', 'author': 'Logan J. M.', 'year': '1979', 'journal-title': 'Eos Trans. AGU'} / Eos Trans. AGU / Preliminary investigation of core material from U.S.G.S. Dry Valley no. 1 well, San Andreas Fault (abstract) by Logan J. M. (1979)
10.1785/BSSA0570061221 / Bull. Seismol. Soc. Amer. / The Parkfield, California earthquake of 1966 by McEvilly T. V. (1967)
10.1146/annurev.ea.06.050178.002201
10.1029/JB084iB05p02251
McGarr A. D. D.Pollard N. C.Gay W. D.Ortlepp Observations and analysis of structures in exhumed mine‐induced faults Proceedings of Conference VIII: Analysis of Actual Fault Zones in BedrockOpen File Rep. 79‐1239 101–120U.S. Geological Survey Menlo Park Calif. 1979b.
{'key': 'e_1_2_1_42_1', 'first-page': '152', 'article-title': 'Geology of the Mount Pinchot quadrangle, southern Sierra Nevada, California', 'volume': '1130', 'author': 'Moore J. G.', 'year': '1963', 'journal-title': 'U.S. Geol. Surv. Bull.'} / U.S. Geol. Surv. Bull. / Geology of the Mount Pinchot quadrangle, southern Sierra Nevada, California by Moore J. G. (1963)
{'key': 'e_1_2_1_43_1', 'volume-title': 'Some Basic Problems of the Mathematical Theory of Elasticity', 'author': 'Muskhelishvili N. I.', 'year': '1954'} / Some Basic Problems of the Mathematical Theory of Elasticity by Muskhelishvili N. I. (1954)
10.1007/BF00876550
Paris P. G.Sih Stress analysis of cracks Symposium on Fracture Toughness Testing and ApplicationsSpec. Tech. Publ. 381 30–81American Society for Testing and Materials Philadelphia Pa. 1965. (10.1520/STP26584S)
10.1016/0040-1951(79)90353-6
Pucik T. A. Elastostatic interaction of cracks in the infinite plane Ph.D. thesis Calif. Inst. of Technol. Pasadena 1972.
{'key': 'e_1_2_1_48_1', 'first-page': '191', 'volume-title': 'Fracture: An Advanced Treatise', 'author': 'Rice J. R.', 'year': '1968'} / Fracture: An Advanced Treatise by Rice J. R. (1968)
10.1002/9781444303735.ch3
10.1029/JB082i005p00844
Sharp R. V. Map showing recently active breaks along the San Jacinto fault zones between the San Bernardino area and Borrego Valley California U.S. Geol. Surv. Misc. Geol. Inv. Map 1–675 scale 1:24 000 1972.
{'key': 'e_1_2_1_52_1', 'first-page': '1145', 'article-title': 'Surface faulting in Imperial Valley during the earthquake swarm of January‐February 1975', 'volume': '66', 'author': 'Sharp R. V.', 'year': '1976', 'journal-title': 'Bull. Seismol. Soc. Amer.'} / Bull. Seismol. Soc. Amer. / Surface faulting in Imperial Valley during the earthquake swarm of January‐February 1975 by Sharp R. V. (1976)
{'key': 'e_1_2_1_53_1', 'first-page': '131', 'article-title': 'Geologic evidence of previous faulting near the 1968 rupture on the Coyote Creek fault', 'volume': '787', 'author': 'Sharp R. V.', 'year': '1972', 'journal-title': 'U.S. Geol. Surv. Prof. Pap.'} / U.S. Geol. Surv. Prof. Pap. / Geologic evidence of previous faulting near the 1968 rupture on the Coyote Creek fault by Sharp R. V. (1972)
{'key': 'e_1_2_1_54_1', 'volume-title': 'Mathematical Theory of Elasticity', 'author': 'Sokolnikoff I. S.', 'year': '1956'} / Mathematical Theory of Elasticity by Sokolnikoff I. S. (1956)
10.1029/JB084iB03p01063
10.1029/JB084iB05p02153
10.1130/0016-7606(1970)81[41:SAOTDB]2.0.CO;2
{'key': 'e_1_2_1_58_1', 'volume-title': 'Theory of Elasticity', 'author': 'Timoshenko S.', 'year': '1951'} / Theory of Elasticity by Timoshenko S. (1951)
Vedder J. G. andR. E.Wallace Map showing recently active breaks along the San Andreas and related faults between Cholame Valley and Tejon Pass California U.S. Geol. Surv. Misc. Geol. Inv. Map 1–574 scale 1:24 000 1970.
{'key': 'e_1_2_1_60_1', 'volume-title': 'Proceedings of the Conference on Tectonic Problems of the San Andreas Fault System', 'author': 'Wallace R. E.', 'year': '1973'} / Proceedings of the Conference on Tectonic Problems of the San Andreas Fault System by Wallace R. E. (1973)
Wallace R. E. H. T.Morris Characteristics of faults and shear zones in mines at depths as much as 2.5 km below the surface Proceedings of Conference VIII: Analysis of Actual Fault Zones in BedrockOpen File Rep. 79‐1239 79–100U.S. Geological Survey Menlo Park Calif. 1979.
10.1029/GL006i011p00825
10.1007/BF00879733
{'key': 'e_1_2_1_64_1', 'first-page': '945', 'article-title': 'Relationship between displacement on a free surface and the stress on a fault', 'volume': '55', 'author': 'Weertman J.', 'year': '1965', 'journal-title': 'Bull. Seismol. Soc. Amer.'} / Bull. Seismol. Soc. Amer. / Relationship between displacement on a free surface and the stress on a fault by Weertman J. (1965)
{'key': 'e_1_2_1_65_1', 'first-page': '25', 'volume-title': 'Rep. Inst. Strength and Fracture of Materials', 'author': 'Yokobori T.', 'year': '1971'} / Rep. Inst. Strength and Fracture of Materials by Yokobori T. (1971)
10.1126/science.206.4417.445

Dates

Type	When
Created	17 years, 6 months ago (Feb. 6, 2008, 10:26 a.m.)
Deposited	1 year, 11 months ago (Sept. 22, 2023, 11:50 a.m.)
Indexed	1 day, 6 hours ago (Aug. 23, 2025, 9:50 p.m.)
Issued	45 years ago (Aug. 10, 1980)
Published	45 years ago (Aug. 10, 1980)
Published Online	12 years, 11 months ago (Sept. 20, 2012)
Published Print	45 years ago (Aug. 10, 1980)

Funders 0

None

BibTeX

@article{Segall_1980, title={Mechanics of discontinuous faults}, volume={85}, ISSN={0148-0227}, url={http://dx.doi.org/10.1029/jb085ib08p04337}, DOI={10.1029/jb085ib08p04337}, number={B8}, journal={Journal of Geophysical Research: Solid Earth}, publisher={American Geophysical Union (AGU)}, author={Segall, P. and Pollard, D. D.}, year={1980}, month=aug, pages={4337–4350} }

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