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Fig. 11 | Progress in Earth and Planetary Science

Fig. 11

From: Rheology and stress in subduction zones around the aseismic/seismic transition

Fig. 11

Section across part of the South Fork Mountain Schist in Thomes Creek, California, showing the distinctive pattern of large-scale folds in revealed by structural analysis. Inset (left) shows schematically how these folds develop by the successive initiation and propagation of crenulation bands. Incremental growth of folds at scales of meters to hundreds of meters can produce displacement and equivalent seismic moment comparable to tremor bursts and slow slip events

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