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under a Creative Commons License. Nonlinear Processes in Geophysics Anomalies of critical state in fracturing geophysical objects

By A. Chmel, V. S. Kuksenko, V. S. Smirnov and N. G. Tomilin

Abstract

Abstract. Non-linear time-sequences of fracture-related events were studied in drifting sea-ice and fracturing rock. A reversible drop of the b-value was detected prior to the largescale sea-ice cover fragmentation, when the time sequence of impact interactions between ice-fields was fully decorrelated. A similar loss of the temporal invariance of the fracture process was revealed in the time sequence of microfracture events detected in a loaded rock sample. These temporal gaps in the continuous critical state of the considered selforganizing, open systems were attributed to the property of hierarchicity inherent in the geophysical objects. A combination of scaling and hierarchic features in the behavior of fracturing solids manifests itself in the heterogeneity of the temporal pattern of fracture process.

Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.371.2394
Provided by: CiteSeerX
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