AF demagnetization data of NRM were analyzed using anchored Principal Component Analysis (PCA) to obtain the Characteristic Remanent Magnetization (ChRM). Each sample was allocated a quality rating according to a semi-subjective judgment of the magnetic vector's demagnetization behavior using an established method described in Zhang and Ogg (2003) (https://doi.org/10.1016/S0098-3004(03)00034-7). Ratings go from 'N(R)', 'NP(RP)', 'NPP(RPP)', 'N?(R?)' to 'INT', where N stands for Normal, R for Reversed, and INT for indeterminable or intermediate.