1. Soft rocks, hard rocks: the world's resources and reserves of Ti and Zr and associated critical minerals. Issue 7 (12th April 2022) Authors: Perks, Cameron; Mudd, Gavin Journal: International geology review Issue: Volume 64:Issue 7(2022) Page Start: 987 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗