IMPRINTS IN SILICA GRAINS INDUCED DURING AN OPEN-CHANNEL FLOW EXPERIMENT: DETERMINATION OF MICROTEXTURAL SIGNATURES DURING AQUEOUS TRANSPORT

摘要

The aim of this work is to identify and characterize microtextural signatures in silica glass grains (used as analogous to quartz) that are produced during aqueous transport at different flow velocities, with variable sediment concentrations, transport distances, and time intervals. To achieve this, an open-channel flow experiment was conducted with a mixture of sand and silica glass microspheres in varying conditions-velocity (from 0.67 to 1.4 m/s), duration (1 or 10 minutes), distance (0 to 2.5 m) and sediment concentration (60 or 80). Experimental conditions were used to replicate natural phenomena such as river superficial velocity or coastal swash processes.