The University of Plymouth in the United Kingdom is inviting applications for a 3.5-year PhD studentship in Geological Sciences, focusing on the porosity puzzle of the Cornubian batholith. This project, titled 'Hot rocks and hidden metals: The porosity puzzle of the Cornubian batholith,' is part of the ARIES Doctoral Training Partnership. The research will explore the geological characteristics and porosity of the Cornubian batholith, with implications for understanding hidden metal resources and geological processes. The studentship is expected to start on 1 October 2026. Applicants should have a strong background in geological sciences or a related field, and a good undergraduate or relevant master's degree. Funding is provided for 3.5 years, with typical ARIES DTP studentships covering tuition and a stipend, though specific amounts are not detailed here. For more information and to apply, candidates should use the online application link provided by the University of Plymouth. This is an excellent opportunity for students interested in geology, earth science, and mineral resources to join a leading research group at a reputable UK institution.