Volcanic Geotopes and Their Geosites Preserved in an Arid Climate Related to Landscape and Climate Changes Since the Neogene in Northern Saudi Arabia: Harrat Hutaymah (Hai'il Region)

Moufti, Mohammed R; Nemeth, Karoly [Németh, Károly (Vulkanológia, sze...), szerző]; El-Masry, Nabil; Qaddah, Atef