High incidence of vanadium and copper in the titanomagnetite and ilmenite samples off Ratnagiri, Maharashtra, India. Indian Journal of Geo-Marine Sciences (IJMS), [S. l.], v. 53, n. 05, p. 409–417, 2025. DOI: 10.56042/ijms.v53i05.21674. Disponível em: https://or.niscpr.res.in/index.php/IJMS/article/view/21674. Acesso em: 14 may. 2026.