As continents grind across ‘hotspots’ in Earth’s mantle, we can get volcanoes erupting on the surface. Studying these can reveal much about our planet’s evolution.
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Articles on Geochemistry
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Diamonds form alongside a distinct purple companion. We studied it to reach a conclusion about how rare they might actually be.
A new geochemical discovery could lead to a cleaner way to extract the rare earth elements needed for the transition to renewable energy.
New research suggests that fire from the sky in the form of a small asteroid annihilated a city near the Dead Sea 3,600 years ago.
Indigenous artists have been engraving rock shelters for millennia - long before the Kimberley’s celebrated rock art paintings. Now the rocks’ natural coatings are yielding clues to the engravings’ creation.
Fool’s gold, or pyrite, is made of worthless iron disulfide, but can contain tiny amounts of the real thing. Using an ‘atom probe’, research has uncovered a new way gold atoms can hide in pyrite crystals.
Are the descriptions of war passed down by ancient historians accurate? A site in Sicily provided a rare chance to fact-check stories told about two battles from more than 2,400 years ago.
This discovery will shape the hunt for life on exoplanets.
From far north Queensland to the southern tip of Tasmania, there is a common geological mechanism that links Eastern Australia’s volcanic history.
How we traced the origin of the sarsen stones.
Scientists have now dated the ‘Great Oxidation Event’ to just before the planet’s first ‘snowball’ period.
It’s not always easy to work out where Aboriginal remains came from, but science can help.
Ponds are good for more than just decorating the garden – they could be your best tool in fighting climate change.
Dust can be instructive. The analysis of those collected around the comet 67P/Churyumov-Gerasimenko provided new information on the history of the solar system.
Meteorite impacts can be very destructive. One that fell in Mexico around 66m years ago created a 180km crater and caused the extinction of dinosaurs while spewing debris and molten rock into the air…
Analysis of fragments of the Chelyabinsk meteorite shows it either collided with another body before hitting the atmosphere…
Carbon modelling is easier to create for surface cycles, but deep in the Earth’s crust things become a lot more difficult…
As of today, the world might have changed forever. A fundamental assumption underpinning much of modern geochemistry is that the earth has the same composition as a class of meteorites called chondrites…
Top contributors
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Research Fellow, School of Earth & Environmental Sciences, University of St Andrews
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Professor of Organic Geochemistry & Meteoritics, Imperial College London
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Research scientist, Griffith University
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Australian Research Council Future Fellow, Archaeology, School of Social Science, The University of Queensland
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Associate Professor, Ecology, Northumbria University, Newcastle
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Canada Research Chair in Human Evolutionary Studies, and Professor of Archaeology, Simon Fraser University
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Chris Jeynes is a Friend of The Conversation.
Professorial Research Fellow, University of Surrey
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Professor of Archaeology, Department of Archaeology and Anthropology, Bournemouth University
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Associate professor, University of Sydney
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Professor of Petrology, Queensland University of Technology
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Associate Professor - Igneous Petrology/Volcanology, The University of Queensland
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Astrochimiste, Maître de Conférences à l’Institut d’Astrophysique Spatiale (IAS), Université Paris-Saclay
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Astrochimiste, post-doctorante au Department of Terrestrial Magnetism (DTM), Carnegie Science
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Astrochimiste, Professeur au Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), Université Paris-Est Créteil Val de Marne (UPEC)
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Professor of Geochemistry, Australian National University
