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About
Societies

Mineralogical Society of America (MSA)

The Mineralogical Society of Great Britain and Ireland (MSUKI)

Mineralogical Association of Canada (MAC)

Clay Minerals Society (CMS)

Geochemical Society (GS)

European Association of Geochemistry (EAG)

International Association of GeoChemistry (IAGC)

Société Française de Minéralogie et de Cristallographie (SFMC)

Association of Applied Geochemists (AAG)

Deutsche Mineralogische Gesellschaft (DMG)

Società Italiana di Mineralogia e Petrologia (SIMP)

International Association of Geoanalysts (IAG)

Polskie Towarzystwo Mineralogiczne (PTMin)

Sociedad Española de Mineralogía (SEM)

Swiss Geological Society (SGG-SGS)

Meteoritical Society (Met Soc)

Japan Association of Mineralogical Sciences (JAMS)

International Association on the Genesis of Ore Deposits (IAGOD)

Affiliated Societies (IMA, EMU, AIPEA)
Current Issue
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Article Archive
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Author: Kouji Adachi

Nanoparticles in the Atmosphere

by Peter R. Buseck, Kouji Adachi August 22, 2023

The most continuous and intimate contact the average person has with nanoparticles is almost surely through the air, which is replete with them. Nanoparticles are, Read more.

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December 2025 --The Variscan Orogeny in Europe – Understanding Supercontinent Formation

The Variscan orogen formed between 380 and 300 million years ago through several accretionary and collisional cycles, culminating with the construction of the Pangea supercontinent. This process occurred via sequential opening and closure of oceanic basins, synchronous detachment of Gondwana derived continental ribbons, and their outboard amalgamation onto the Laurussia margin. The Variscan orogen is rather unique compared with other orogenic belts on Earth: its overthickened and dominantly magmatic crust in the central belt, surprisingly minor mantle involvement in the magmatic and geodynamic processes, coherent and pulsed magmatism along the collision suture, and its complex accretionary history. Because its final product, Pangea, is the youngest and best-understood supercontinent on Earth, the Variscan orogeny offers clues for understanding the mechanisms of supercontinent formation.