Mechanisms to generate ultrahigh-temperature metamorphism

S Jiao, M Brown, RN Mitchell, P Chowdhury… - Nature Reviews Earth & …, 2023 - nature.com
Ultrahigh-temperature (UHT; T max≥ 900° C) metamorphism requires unusually high heat
in continental crust at depths of 15–55 km, but how such extreme thermal conditions are …

Detrital zircon U-Pb geochronology applied to tectonics

G Gehrels - Annual Review of Earth and Planetary Sciences, 2014 - annualreviews.org
Detrital zircon geochronology is rapidly develo** into an essential tool in Earth science
research because of the widespread occurrence of zircon in sedimentary systems; the wide …

New magmatic oxybarometer using trace elements in zircon

RR Loucks, ML Fiorentini, GJ Henríquez - Journal of Petrology, 2020 - academic.oup.com
We derive a novel method for determining the oxidation state of a magma as zircon
crystallized, with a standard error of±0· 6 log unit ƒO2, using ratios of Ce, U, and Ti in zircon …

The assembly of Rodinia: The correlation of early Neoproterozoic (ca. 900 Ma) high-grade metamorphism and continental arc formation in the southern Beishan …

K Zong, R Klemd, Y Yuan, Z He, J Guo, X Shi, Y Liu… - Precambrian …, 2017 - Elsevier
An early extensive Neoproterozoic (ca. 900 Ma) continental magmatic arc system covering
hundreds of kilometers has been reported to occur in the South Beishan Orogenic Belt …

Qinghu zircon: A working reference for microbeam analysis of U-Pb age and Hf and O isotopes

XH Li, GQ Tang, B Gong, YH Yang, KJ Hou… - Chinese Science …, 2013 - Springer
Zircon is the most useful mineral for studies in U-Pb geochronology and Hf and O isotope
geochemistry. Matrix effect is a major problem of the microbeam techniques such as SIMS …

Zircon Th/U ratios in magmatic environs

CL Kirkland, RH Smithies, RJM Taylor, N Evans… - Lithos, 2015 - Elsevier
A comprehensive database of zircon composition in West Australian magmatic rocks reveals
negative correlations between both U and Th zircon/whole rock ratio and the zircon …

Ce and Eu anomalies in zircon as proxies for the oxidation state of magmas

D Trail, EB Watson, ND Tailby - Geochimica et cosmochimica acta, 2012 - Elsevier
Chondrite normalized rare earth element (REE) patterns of zircons generally have enriched
Ce values relative to La and Pr, and depleted Eu values relative to Sm and Gd. High Ce …

Continental and oceanic crust recycling-induced melt–peridotite interactions in the Trans-North China Orogen: U–Pb dating, Hf isotopes and trace elements in zircons …

Y Liu, S Gao, Z Hu, C Gao, K Zong… - Journal of petrology, 2010 - academic.oup.com
We present the first finding of continental crust-derived Precambrian zircons in garnet/spinel
pyroxenite veins within mantle xenoliths carried by the Neogene Hannuoba basalt in the …

[HTML][HTML] On ultrahigh temperature crustal metamorphism: Phase equilibria, trace element thermometry, bulk composition, heat sources, timescales and tectonic …

DE Kelsey, M Hand - Geoscience Frontiers, 2015 - Elsevier
Ultrahigh temperature (UHT) metamorphism is the most thermally extreme form of regional
crustal metamorphism, with temperatures exceeding 900° C. UHT crustal metamorphism is …

Detrital zircon U‐Pb geochronology: Current methods and new opportunities

G Gehrels - Tectonics of sedimentary basins: Recent advances, 2011 - Wiley Online Library
Detrital zircon geochronology is rapidly evolving into a very powerful tool for determining the
provenance and maximum depositional age of clastic strata. This rapid evolution is being …