Rio Tinto will ask traditional landowners how it can improve its approach to cultural heritage, under a review launched in the wake of last week's Juukan Gorge controversy.

Rio has apologised for destroying 46,000 year old rock shelters of cultural significance to the Puutu Kunti Kurrama and Pinikura (PKKP) people, who are the traditional owners of land near Rio's Brockman iron ore mines in Western Australia.