Cover design

Vol. 135, 4, 2024: Crystallographic orientation of an emerald crystal. Perpendicular to the C axis (red arrow), parallel to the C axis (blue arrow). The laser (532 nm) is oriented perpendicular to the C axis (right)

 

Vol. 135, 3, 2024: Geological map of the province of Zaragoza (1866), by Felipe Martín Donayre

 

Vol. 135, 2, 2024: Large size soft sediment deformation structure, Frasnian, Gordón Member, Meroy section, Puerto de Somiedo, Cantabrian Mountains

 

Vol. 135, 1, 2024: View from the Nile of the Qubbet el-Hawa Necropolis, Aswan (Egypt). From bottom to top: feldspathic graywackes of the Abu Agag formation (Turonian), sandstones of the Timsah formation (Coniacian), and quartzarenites of the F. Umm Barmil (Santonian).