The age and origin of the South Mountain Batholith (Nova Scotia, Canada) as constrained by zircon U–Pb geochronology, geochemistry, and O–Hf isotopes

L Bickerton, DJ Kontak, JB Murphy… - Canadian Journal of …, 2022 - cdnsciencepub.com
The South Mountain Batholith (SMB; Nova Scotia, Canada) is the largest composite
batholith exposed in the Appalachians and lies entirely within the most outboard Meguma …

Paleoproterozoic reworking of Archean crust and extreme back‐arc metamorphism in the enigmatic southern Trans‐Hudson orogen

IW Hillenbrand, AK Gilmer, ML Williams… - Geophysical …, 2024 - Wiley Online Library
The crustal evolution of the southernmost∼ 2000–1800 Ma Trans‐Hudson orogen (THO) is
enigmatic due to burial by Phanerozoic sediments. We provide new insights through …

Zircon Zr isotope fractionation during crustal anatexis

E Zhu, Q **a, Z Li, R Chen, J Van Orman - Science China Earth Sciences, 2024 - Springer
Zirconium is one of high field strength elements but its isotope behavior during geochemical
processes is still uncertain because of the limited database. While Zr isotopes in magmatic …

Hf-Nd isotope decoupling in S-type granitoids caused by disequilibrium melting of metasedimentary rocks: Evidence from the North Qinling Terrane, Central China

FY Sun, SB Zhang, YF Zheng, ZX Li, T Liang - Lithos, 2024 - Elsevier
The intrinsic assumption of radiogenic isotope tracing is that isotope systems maintain
equilibrium between melt and source. However, this assumption is not naturally correct …

Current applications using key mineral phases in igneous and metamorphic geology: perspectives for the future

S Volante, E Blereau, M Guitreau, M Tedeschi… - 2024 - pubs.geoscienceworld.org
The study of magmatic and metamorphic processes is challenged by geological
complexities like geochemical variations, geochronological uncertainties and the …

In situ zircon and cassiterite U-Pb ages constraints on concealed granite and W mineralization in the Kuimeishan deposit, Nanling Region, South China

WS Li, P Ni, ZL Zeng, ZQ Peng, JY Pan, MS Fan… - Journal of Geochemical …, 2022 - Elsevier
The Nanling tungsten‑tin province in South China hosts numerous world-class quartz vein
type tungsten deposits. The quartz-wolframite veins are generally spatially associated with …

Zircon ZrHf isotope disequilibrium during crustal anatexis: A record from the Mesozoic migmatite in the eastern Gangdese arc, South Tibet

Y Zhang, L Guo, W Zhang, H Zhang, T Luo - Chemical Geology, 2024 - Elsevier
Stable zirconium (Zr) isotopes have become the focus of attention as potential tracers of
magma crystallization and differentiation processes. However, the effects of partial melting …

Zircon Hf isotope behavior during the magmatic-hydrothermal processes: A case study from the Yashan pluton, South China

Y Wang, P Gao, GC Sun, MJ Mayne, J Zhang, C Yin… - Lithos, 2024 - Elsevier
Zircon is a common accessory mineral in granites. Zircon Hf isotope analysis has been
widely applied in the studies of crustal evolution and granite genesis. However, previous …

Homogenization of HfNd isotopes induced by hydrothermal fluids during the differentiation of granitic magmas into pegmatites

ZX Li, SB Zhang, YF Zheng, GC Sun - Chemical Geology, 2024 - Elsevier
Whole-rock and zircon Hfsingle bondNd isotopes offer crucial insights into the origin of
granites and the evolution of continental crust. However, factors contributing to variations in …

Formation of rare-element pegmatites in the Chinese Altai: Contribution of two-stage melting

S Liu, R Wang, RE Botcharnikov, H Sha - Geology, 2024 - pubs.geoscienceworld.org
With increasing discoveries of rare-element pegmatites in metamorphic-migmatitic belts, the
role of partial melting of metamorphic protoliths in the formation of pegmatites has attracted …