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Abstract:
This study attemps to identify and quantify the parameters that control mass-transfer modes in brittle tectonically erosive and accretive forearc settings. Scaled analogue simulations, which are specifically designed for this task, are compared with the convergent Chilean Margin that demonstrates both of these mass-transfer modes. Analogue simulation of geodynamic processes requires granular materials (e. g. sand) that deforms similarly to typical crustal rocks. Accordingly, a parameter study is performed, which yields general insight in the basic mechanics of highly-idealised convergent sand wedges.
