Intra Plate Stresses Using Finite Element Modelling

• Autorzy: Jayalakshmi S. , Raghukanth S. T. G.

Identyfikatory

DOI

10.1515/acgeo-2016-0050

• Języki publikacji: EN

Abstrakty

EN

One of the most challenging problems in the estimation of seismic hazard is the ability to quantify seismic activity. Empirical models based on the available earthquake catalogue are often used to obtain activity of source regions. The major limitation with this approach is the lack of sufficient data near a specified source. The non-availability of data poses difficulties in obtaining distribution of earthquakes with large return periods. Such events recur over geological time scales during which tectonic processes, including mantle convection, formation of faults and new plate boundaries, are likely to take place. The availability of geometries of plate boundaries, plate driving forces, lithospheric stress field and GPS measurements has provided numerous insights on the mechanics of tectonic plates. In this article, a 2D finite element model of Indo-Australian plate is developed with the focus of representing seismic activity in India. The effect of large scale geological features including sedimentary basins, fold belts and cratons on the stress field in India is explored in this study. In order to address long term behaviour, the orientation of stress field and tectonic faults of the present IndoAustralian plate are compared with a reconstructed stress field from the early Miocene (20 Ma).

Słowa kluczowe

EN

seismic hazard; seismic activity; finite element method; optimisation; palaeostress

PL

zagrożenie sejsmiczne; aktywność sejsmiczna; metoda elementów skończonych; optymalizacja; paleonaprężenia

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2016
• Tom: Vol. 64, no. 5
• Strony: 1370--1390
• Opis fizyczny: Bibliogr. 19 poz.

Twórcy

autor

Jayalakshmi S.

• Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, India

autor

Raghukanth S. T. G.

• Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, India

Bibliografia

• Bird, P., and J. Baumgardner (1984), Fault friction, regional stress, and crust-mantle coupling in southern California from finite element models, J. Geophys. Res. 89, B3, 1932-1944, 2156-2202, DOI: 10.1029/JB089iB03p01932.
• Bird, P., and K. Piper (1980), Plane-stress finite-element models of tectonic flow in southern California, Phys. Earth Planet. In. 21, 2-3, 158-175, DOI: 10.1016/0031-9201(80)90067-9.
• Caporali, A. (1997), Rheology of the Indian and Tarim plates in the karakoram continent-to-continent collision zone, Ann. Geophys. 40, 5, 1057-1067, DOI: 10.4401/ag-3840.
• Cloetingh, S., and R. Wortel (1985), Regional stress field of the Indian plate, Geophys. Res. Lett., 12, 2, 77-80, DOI: 10.1029/GL012i002p00077.
• Coblentz, D.D., M. Sandiford, R.M. Richardson, S. Zhou, and R. Hillis (1995), The origins of the intraplate stress field in continental Australia, Earth Planet. Sci. Lett. 133, 3-4, 299-309, DOI: 10.1016/0012-821X(95)00084-P.
• Conder, J.A., and D. Forsyth (2001), Seafloor spreading on the south Indian ridge over the last one million years: a test of the capricon plate hypothesis, Earth Planet. Sci. Lett. 188, 1-2, 91-105, DOI: 10.1016/S0012-821X(01)00326-0.
• Dyksterhuis, S., R. Albert, and R. Müller (2005), Finite-element modelling of contemporary and palaeo-intraplate stress using abaqus, Comput. Geosci. 31, 3, 297-307, DOI: 10.1016/j.cageo.2004.10.011.
• GSI (2000), Seismotectonic atlas of India and its environs, Technical Report, Geological Survey of India.
• Hall, R. (2002), Cenozoic geological and plate tectonic evolution of SE Asia and the sw Pacific: computer-based reconstructions, model and animations, J. Asian Earth Sci. 20, 4, 353-431, DOI: 10.1016/S1367-9120(01)00069-4.
• Jayalakshmi, S., and S.T.G. Raghukanth (2015), An engineering model for seismicity of India, Geomatics Nat. Hazards Risk 6, 1, 1-20, DOI: 10.1080/ 19475705.2013.815282.
• Joshi, G., and D. Hayashi (2010), Development of extensional stresses in the compressional setting of the himalayan thrust wedge: inference from numerical modelling, Nat. Sci. 2, 7, 667-680, DOI: 10.4236/ns.2010.27083.
• Lyon-Caen, H., and P. Molnar (1985), Gravity anomalies, flexure of the Indian plate, and the structure, support and evolution of the Himalaya and Ganga Basin, Tectonics 4, 6, 513-538, DOI: 10.1029/TC004i006p00513.
• Müller, R., V. Yatheesh, and M. Shuhail (2014), The tectonic stress field of India since the Oligocene, Gondwana Res. 28, 2, 612-624, DOI: 10.1016/j.gr. 2014.05.008.
• NDMA (2010), Development of probabilistic seismic hazard map of India, Technical Report, National Disaster Management Authority, Government of India.
• Pauselli, C., and C. Federico (2003), Elastic modeling of the Alto Tiberina normal fault (central Italy): geometry and lithological stratification influences on the local stress field, Tectonophysics 374, 1-2, 99-113, DOI: 10.1016/ S0040-1951(03)00235-X.
• Royer, J.Y., and R.G. Gordon (1997), The motion and boundary between the Capricon and Australian plates, Science 277, 5330, 1268-1274, DOI: 10.1126/ science.277.5330.1268.
• Turcotte, D.L., and G. Schubert (2002), Geodynamics, 2nd ed., Cambridge University Press, Cambridge.
• Wilson, M. (1993), Plate-moving mechanisms: constraints and controversies, J. Geol. Soc. 150, 5, 923-926, DOI: 10.1144/gsjgs.150.5.0923.
• Zoback, M.L. (1992), First- and second-order patterns of stress in the lithosphere: The world stress map project, J. Geophys. Res. Solid Earth 97, B8, 11703- 11728, DOI: 10.1029/92JB00132.