"Igneous rocks." . . . . . . . . . . . . . . . . . "Classical areas of British geology Jersey Description of 1: 25 000 Channel Islands Sheet 2"@en . . . . . . . . . . "Volcanic rocks." . . "Shales." . . "Lower Palaeozoic." . . "Igneous intrusions." . . "Jersey." . . "Channel Isles." . . "Applied geology." . . "Regional map explanations." . . "Ground geophysical maps & surveys." . . "Precambrian." . . . . "Quaternary." . .