GEMTELLIGENCE: Accelerating gemstone classification with deep learning

Autor: Tommaso Bendinelli, Luca Biggio, Daniel Nyfeler, Abhigyan Ghosh, Peter Tollan, Moritz Alexander Kirschmann, Olga Fink

Publikováno v: Communications Engineering, Vol 3, Iss 1, Pp 1-10 (2024)

Abstract The value of luxury goods, particularly investment-grade gemstones, is influenced by their origin and authenticity, often resulting in differences worth millions of dollars. Traditional methods for determining gemstone origin and detecting t

Externí odkaz: https://doaj.org/article/5e55b3167d834867b415a9d22031824c

Degassing from magma reservoir to eruption in silicic systems: The Li elemental and isotopic record from rhyolitic melt inclusions and host quartz in a Yellowstone rhyolite

Autor: Julia Neukampf, Oscar Laurent, Peter Tollan, Anne-Sophie Bouvier, Tomas Magna, Peter Ulmer, Lydéric France, Ben S. Ellis, Olivier Bachmann

Publikováno v: Geochimica et Cosmochimica Acta, 326

Lithium and hydrogen are volatile elements which diffuse rapidly in crystals and melt, making them powerful geochemical tools to reconstruct geological processes that take place on short time scales, such as syn- and post-eruptive degassing. Although

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63b65151aa227cfc54071ca0ba50f83d
https://doi.org/10.1016/j.gca.2022.03.037

Solubility of water in peridotite liquids and the formation of steam atmospheres on rocky planets

Autor: Paolo Sossi, Peter Tollan, James Badro, Dan Bower

Atmospheres are products of time-integrated mass exchange between the surface of a planet and its interior. On Earth, the most significant of these events occurred when it existed in a magma ocean state, producing its earliest atmosphere. During this

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::53e71d47fc7365999766c0f403185809
https://doi.org/10.5194/egusphere-egu22-11313

Elucidating the processes affecting highly primitive lavas of the Borgarhraun flow (northern Iceland) using trace elements in olivine

Autor: Andrey A. Gurenko, Peter Tollan, Jörg Hermann

Publikováno v: Geochimica et Cosmochimica Acta. 286:441-460

Olivine is typically the first phase to crystallise from basaltic melts and its chemistry can therefore inform on the earliest stages of magmatic evolution, not recorded by later crystallising phases. Despite the potential of olivine for understandin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::11ae82fa548e8893039b099ce25483b2
https://doi.org/10.1016/j.gca.2020.07.033

Microplastics in agricultural drainage water: A link between terrestrial and aquatic microplastic pollution

Autor: Julien Reynes, Peter Tollan, Milo Fieber, Alexandra Foetisch, Moritz Bigalke

Publikováno v: Bigalke, Moritz; Fieber, Milo; Foetisch, Alexandra; Reynes, Julien; Tollan, Peter (2021). Microplastics in agricultural drainage water: A link between terrestrial and aquatic microplastic pollution. Science of the total environment, 806, p. 150709. Elsevier 10.1016/j.scitotenv.2021.150709

Microplastic (MP) contamination has been reported to be higher in terrestrial compared to aquatic environments. This is probably due to the fact that plastic items are mostly produced and used in terrestrial environments and have a longer residence t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::284154518e8162963433d81e5d98f30a
https://boris.unibe.ch/160237/1/Milo_Microplastics_in_agricultural_drainage_water_A_link_between_terrestrial.pdf