Abstract |
Contents: Refringence of iron-rich wollastonite Andesitic agglomerate in the Caradocian succession at Montgomery Castle, Wales. Petrology and Rb-Sr age of the Brannel, South Crofty and Wherry elvan dykes, Cornwall. Concretionary concentrations of the rarer elements in Permo-Triassic red beds of South-West England (with contributions by AE Tresham, BR Young and RI Lawson). An occurrence of sapphire in the Land's End Granite, Cornwall Goethite from Hindlow, Derbyshire. Jasperoid and chalcedonic concretions in anhydrite, Sandwith Mine, St Bees, Cumbria. |