Isolated layer below
preserved organic layer underneath the Stainton gravel beds.
Close up of a section of the Stainton gravel beds, with organic material between the two fine gravel layers, for some as yet unknown reason at least a third of these smaller gravels are highly magnetic, i am going to collect samples from deeper into the gravels for the tvrigs group to make a deeper petrographic analysis of the magnetic meterial.
One layer below my tea cup, and probably at least another two above the Stainton gravel beds pictured above.
|Close up of two separate layers|