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Submarine landslides can generate complicated patterns of seafloor relief that influence subsequent flow behaviour and sediment dispersal patterns. In subsurface studies, the term mass transport deposits (MTDs) is commonly used and covers a range of processes and resultant deposits. While the large-scale morphology of submarine landslide deposits can be resolved in seismic reflection data, the nature of their upper surface and its impact on both facies distributions and stratal architecture of overlying deposits is rarely resolvable. However, field-based studies often allow a more detailed characterisation of the deposit. The early post-rift Middle Jurassic deep-water succession of the Los Molles Formation is exceptionally well-exposed along a dip-orientated WSW-ENE outcrop belt in the Chacay Melehue depocentre, Neuquén Basin, Argentina. We correlate 27 sedimentary logs constrained by marker beds to document the sedimentology and architecture of a >47 m thick and at least 9.6 km long debrite, which contains two different types of megaclasts. The debrite overlies ramps and steps, indicating erosion and substrate entrainment. Two distinct sandstone-dominated units overlie the debrite. The lower sandstone unit is characterised by: 1) abrupt thickness changes, wedging and progressive rotation of laminae in sandstone beds associated with growth strata; and 2) detached sandstone load balls within the underlying debrite. The combination of these features suggests syn-sedimentary foundering processes due to density instabilities at the top of the fluid-saturated mud-rich debrite. The debrite relief controlled the spatial distribution of foundered sandstones. The upper sandstone unit is characterised by thin-bedded deposits, locally overlain by medium-to thick-bedded lobe axis/off-axis deposits. The thin-beds show local thinning and onlapping onto the debrite, where it develops its highest relief. Facies distributions and stacking patterns record the progradation of submarin

A passive acoustic emission monitoring system is described which has been tested on two M10000 IsaMills. The analyser detects acoustic emission stress waves generated by grinding media impacts with the mill liner, and locally propagating stress waves can be detected on the exterior lining surface using mounted broadband accelerometers. A six-month field trial showed large variations in acoustic emission power signature with process conditions. Analysis of the enveloped acoustic emission power output showed a strong correlation with mill process conditions, in particular grinding media relative loading, feed pulp density, feed volumetric flow rate and feed type. Accelerometers placed along the length of the mill body provided information on the relative deportment of the grinding media. The enveloped acoustic emission power detected by the mill body, discharge pipe and bearing housing sensors all captured information which was strongly correlated with mill operating parameters and process state., A passive acoustic emission monitoring system is described which has been tested on two M10000 IsaMills. The analyser detects acoustic emission stress waves generated by grinding media impacts with the mill liner, and locally propagating stress waves can be detected on the exterior lining surface using mounted broadband accelerometers. A six-month field trial showed large variations in acoustic emission power signature with process conditions. Analysis of the enveloped acoustic emission power output showed a strong correlation with mill process conditions, in particular grinding media relative loading, feed pulp density, feed volumetric flow rate and feed type. Accelerometers placed along the length of the mill body provided information on the relative deportment of the grinding media. The enveloped acoustic emission power detected by the mill body, discharge pipe and bearing housing sensors all captured information which was strongly correlated with mill operating parameters and process state.