Origin, dynamics, and chemical evolution of garnet-bearing leucogranitic magma, Eastern Desert of Egypt: Controls on the rare-metal enrichment in the A-type …

NM Mahdy, T Iizuka, V Pease, MM Ghoneim… - Geochemistry, 2023 - Elsevier
Egypt hosts numerous rare-metal granites, ie, highly evolved granites enriched in rare
metals (Ta, Nb, Be, Sn, Zr, Th, and REE). However, the processes involved in the rare-metal …

Garnet Reference Materials for In Situ Lu‐Hf Geochronology

BV Ribeiro, CL Kirkland, M Smit… - Geostandards and …, 2024 - Wiley Online Library
In situ garnet Lu‐Hf geochronology has the potential to revolutionise the chronology of
petrological and tectonic processes, yet there is a paucity of well‐characterised reference …

Highly discrepant Lu–Hf and Sm–Nd dates from crustal xenoliths witness the stability and destruction of a craton

H Cheng, EM Bloch, E Moulas, JD Vervoort… - Earth and Planetary …, 2024 - Elsevier
Cratons are ancient and stable fragments of continental lithosphere that have survived over
billions-of-years of Earth's geologic evolution. Although many recent studies have focused …

Retentiveness of rare earth elements in garnet with implications for garnet Lu‐Hf chronology

MA Smit, JC Vrijmoed, EE Scherer… - Journal of …, 2024 - Wiley Online Library
Incorporation of rare earth elements (REE) in garnet enables garnet chronology (Sm‐Nd, Lu‐
Hf), and imparts a garnet‐stable signature on cogenetic phases, which allows …

Bridging the gap in garnet diffusion models at low temperatures: Recalibration using Western Tianshan eclogitic breccia

J Chen, X Chu - Journal of Petrology, 2024 - academic.oup.com
Abstract Models concerning the diffusion of divalent cations (Ca2+, Mg2+, Fe2+, and Mn2+)
in garnet have been subject to extensive research and application over several decades, yet …

Mantle versus crustal contributions in crustal-scale magmatic systems (Sesia Magmatic System, northern Italy) from coupling Hf isotopes and numerical modelling

JC Storck, O Laurent, O Karakas, JF Wotzlaw… - … to Mineralogy and …, 2021 - Springer
The growth and evolution of crustal-scale magmatic systems play a key role in the
generation of the continental crust, the largest eruptions on Earth, and the formation of metal …

Common assumptions and methods yield overestimated diffusive timescales, as exemplified in a Yellowstone post-caldera lava

K Brugman, CB Till, M Bose - Contributions to Mineralogy and Petrology, 2022 - Springer
To interpret modern-day unrest at Yellowstone Caldera, timescales leading up to its most
common type of eruption—effusively emplaced rhyolite—must be quantified. This work takes …

Thermal pulse induced by emplacement of Ramba leucogranites in southern Tibet

X Chu, O Akça, F Gaidies, I Gennaro… - Journal of Metamorphic …, 2023 - Wiley Online Library
The thermal histories of Himalayan leucogranites provide critical information for unravelling
the post‐collisional geodynamics of the Himalayas. The Ramba Dome is located at the …

Geochemistry, UPb geochronology, and Sr-Nd-Hf isotope systematics of a SW-NE transect in the southern Peninsular Ranges batholith, Mexico: Cretaceous …

M Contreras-López, LA Delgado-Argote, B Weber… - Lithos, 2021 - Elsevier
Abstract The Peninsular Ranges batholith (PRB) is a North American Cordillera segment
with a protracted record of subduction-related magmatism (177–92 Ma). However, such a …

Diffuser: A user-friendly program for diffusion chronometry with robust uncertainty estimation

LG Wu, Y Li, MC Jollands, P Vermeesch… - Computers & Geosciences, 2022 - Elsevier
Chemical diffusion in minerals has shown great potential to quantify timescales of geological
processes. The presence of chemical gradients, along with favorable temperature and time …