Hi Martin, I was VERY surprised to find this site during my hiking trip in Slovakia Tatry. Totally by chance. I started to find more on a web but not much valuable can be found by now. But take into account that the place is pretty recent.. 2021. As I could find, the man who promoted discovery/recovery was an amateur.
So I succeeded to contact by phone some people from Nitra town Archeological institute and get contact to one true expert/archeologist who know the place. He confirmed to my that only cleaning and restoration works has been carried out there under some sort of supervison of experts. Not more. So no such sophisticated methods you mentioned.
That man was almost sure that there were some quarry activity. Anyway how much it affected the site and whether it was the main point or much later subsequent works is totally uncelar.
Something is not right. This message is just to keep things from messing up down the road