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Modern nonlinear dynamical system theory has provided a novel perspective for quantifying the predictability behavior of earthquake processes. Here, we employ a nonlinear forecasting approach to analyze a time series of earthquake frequency (earthquake/month M≥5) covering a time window 1960–1988. The main objectives of the present study are to (i) characterize the nature of earthquake generating mechanism...
Secular variations in dolomite abundance in deep marine sediments (DADMS) indicate changing bio-geochemical and sedimentary environments of deposition. Increasing dolomite abundances of the past indicate that past is the key to the present in this case. Spectral analyses of best available DADMS record for the past 140 million years (m.y.) using a powerful clean spectral algorithm, for the first...
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