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EARTH SCIENCES – Deposits

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Website title: Deposits – Fossils, geology and minerals. Highly acclaimed international earth science blog with over 850 articles and book reviews.

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Rosalind Jones (France) Here’s a conundrum. How is it that a mountain composed of schist has a topping of Larvikite granite which is surrounded by a deposit containing Iona Marble, Old Red Sandstone and Triassic pebbles? Furthermore, why did it make global news? How did it inspire students to become …

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Jon Trevelyan (UK) This is the first of my series of short articles on fossils of the Cambrian. Amongst the most intriguing arthropods of the Cambrian and Ordovician are the agnostids – tiny, simplified, and often beautifully preserved creatures long grouped together with trilobites but still raising questions about their …

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Jon Trevelyan (UK) The origins of the collection at the Museum national d’Histoire naturelle’s Galerie de Géologie et de Minéralogie in Paris date back surprisingly far. In 1625, under Louis XIII, minerals thought to have medicinal virtues were deposited in the ‘droguier du roi’ (royal drug cabinet) associated with the then …

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Jon Trevelyan (UK) This is the eleventh and last of my series of short articles on fossils of the Ediacaran Period. Yorgia is one of the most distinctive members of the Ediacaran biota – a broad, quilted, segmented organism that thrived on the shallow seafloors of the White Sea region …

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Jon Trevelyan (UK) Britain is often described as geologically quiet. There are no active volcanoes, no subduction zones, and only modest earthquakes. Yet, for its size, few countries display such a concentration of geological variety. Mountain uplands, volcanic terrains, deeply folded rocks, and ancient metamorphic cores all occur within a …

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