In all entities from this site (KNI-51-0 (entity_id = 331), KNI-51-3 (entity_id = 332), KNI-51-4 (entity_id = 333), KNI-51-7 (entity_id = 334), KNI-51-10 (entity_id = 335), KNI-51-11 (entity_id = 336), KNI-51-A2-side1 (entity_id = 337), KNI-51-A2-side2 (entity_id = 338), KNI-51-C (entity_id = 339), KNI-51-F (entity_id = 340), KNI-51-G (entity_id = 341), KNI-51-H (entity_id = 342), KNI-51-I (entity_id = 343), KNI-51-J (entity_id = 344), KNI-51-N (entity_id = 345) and KNI-51-O (entity_id = 346)): all samples have been corrected by -1 permil to be a calcite equivalent. In the original paper, entity KN51-10 was arbitarily offset by -1 permil to match other records; this offset has been removed.