LogGeologique IndependantRecorder email address of the provider registered in the sites list registered in the boreholes list free text that specifies the reference point used to calculate the saved depth in the column relative_z French NGF altitude -estimated above sea level- of the point used as a reference for the depths, in meters depth in meters calculated by reference to the reference point structure of the rock angle of the structure with respect to the north (between 0 and 360 °) dip of structures in degrees from -90 to +90 lithology age estimated using the GCMD classification url of the file with the log image