Acquisition of detrital magnetization in four turbidites

摘要: Turbiditic events are mostly avoided in paleomagnetic studies and therefore their remanence magnetic properties poorly described. Turbidites exempt of bioturbation potentially provide pertinent information about depositional remanence. We studied four quaternary turbidites different origins marine sediment cores. Upward fining both sedimentary fractions indicates that coarser grains reached the bottom first. observe a progressive shallowing inclinations between upper layers increases with size obeys simple linear scaling law. Measurements anisotropy suggest hydrodynamic conditions prevailing during deposition seem to be dominant for alignment grains. small spherical randomly oriented zero resultant magnetization presence strong turbulent conditions, while elongated is constrained by competition gravity forces. A possible scenario under they tend rest at long axes parallel surface shallow inclinations, whereas weakly like smallest (26 cm thick) event do not disturb generate inclination shallowing. This article protected copyright. All rights reserved.