We are gradually learning more about what geologists say is the varied, complex and extremely interesting rock formations of County Donegal.
It’s all as a reslt of what’s known as the Tellus survey being carried out by the Geological Survey of Ireland.
People in Donegal will recall the low-flying Tellus survey plane flying over the county between May and September of last year.
Now, the latest phase of the geo-physical data collected has just been released.
It will help improve geological maps which will assist with a variety of studies, including that of rock formations and the presence of radon.
Jim Hodgson, Tellus project manager, has been telling Ocean FM News about the latest findings: