The Upper Devonian Aley carbonatite, NE British Columbia: a product of Antler orogenesis in the western Foreland Belt of the Canadian Cordillera
Fossil biomass preserved as graphitic carbon in a late Paleoproterozoic banded iron formation metamorphosed at more than 550°C
Exhumation history of the Aydın range and the role of the Büyük Menderes detachment system during bivergent extension of the central Menderes Massif, western Turkey
Mid-Paleozoic ridge subduction in the Central Beishan of the southern Altaids: evidence from geochemical, Sr–Nd and zircon U–Pb–Hf–O isotopic data of Gongpoquan volcanic rocks
Middle–late Mesoproterozoic tectonic geography of the North Australia Craton: U–Pb and Hf isotopes of detrital zircon grains in the Beetaloo Sub-basin, Northern Territory, Australia
Recognition of Pan-African-aged metamorphism in the Fisher Terrane, central Prince Charles Mountains, East Antarctica
Cover image: A micro landscape photographed on an exposed quarry face of Ballachulish Slate Formation. The dark coloured mudstones contain Iron Pyrites (Iron Sulphide). This reacts with oxygen and water to form iron oxide (rust) and sulphuric acid. The acid reacts with any calcareous cement in the mudstone to form gypsum (hydrous calcium sulphate). This reaction is very important to engineering geologists as the acid attacks concrete and the gypsum causes heave.
Photo: Ursula Lawrence.
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