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Lecture
The Fossil Insects of Scotland
Fossil insects are rare in Scotland, though those that are found are significant and are from four periods: Specimens from the Lower Devonian Rhynie Chert of Aberdeenshire are the oldest in the world; a few species are known from the Upper Carboniferous Coal Measures of Ayrshire and Fife; as yet...Ross, Andrew J
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Lecture
Co-evolution of geological and biology from a mineralogical perspective
• Earth's surface harbours at least 5809 known minerals, but when Earth first formed 4.65 billion years ago, it had about 420. Moreover, what is common on the surface today was uncommon then. Many rocks and minerals have come into being while others have become extinct. • The overall increase...Walcott, Rachel