
To overcome obstacles posed by coarse-grained layers, Livingstone corers can be used with the LacCore vibracoring system that attaches to the drive rods at the surface. This allows coring through thicker coarse-grained units (sands/gravels, tephras), which are notoriously difficult to push through without vibration or percussion. Other Livingstone corers are specially modified for coring through fibrous material such as peat.