Chemical mohometry: Assessing crustal thickness of ancient orogens using geochemical and isotopic data

P Luffi, MN Ducea - Reviews of Geophysics, 2022 - Wiley Online Library
Convergent plate boundaries are key sites for continental crustal formation and recycling.
Quantifying the evolution of crustal thickness and paleoelevation along ancient convergent …

Cenozoic porphyry and other hydrothermal ore deposits along the South Caucasus-West Iranian tectono-magmatic belt: a critical reappraisal of the controlling factors

A Rabiee, F Rossetti, F Lucci, M Lustrino - Lithos, 2022 - Elsevier
In this contribution, we investigate the space and time distribution of the Cenozoic
magmatism and the associated porphyry Cu-Mo±Au and other hydrothermal (mostly …

Europium anomalies in detrital zircons record major transitions in Earth geodynamics at 2.5 Ga and 0.9 Ga

A Triantafyllou, MN Ducea, G Jepson… - …, 2023 - pubs.geoscienceworld.org
Trace elements in zircon are a promising proxy with which to quantitatively study Earth's
long-term lithospheric processes and its geodynamic regimes. The zircon Eu anomaly …

To sink, or not to sink: The thermal and density structure of the modern northern Andean arc constrained by xenolith petrology

L Zieman, M Ibañez-Mejia, AD Rooney… - …, 2023 - pubs.geoscienceworld.org
The thermal and compositional structure of arcs influence magmatic differentiation and lower-
crustal foundering, two key processes impacting the evolution of the continental crust …

Melt inclusions in Arclogitic xenoliths constrain the genesis of the lower continental arc crust beneath the northern volcanic zone, Colombia

O Gianola, B Costa, F Ferri, M Gilio, M Petrelli… - Journal of …, 2023 - academic.oup.com
Volcanic arcs above subduction zones are thought to be the principal locations where
juvenile magmatic crust forms and is refined to become continental crust with an andesitic …

Pyroxenite melting at subduction zones

EE Bowman, MN Ducea - Geology, 2023 - pubs.geoscienceworld.org
Arc magmatism is thought to be driven by peridotite melting in the mantle wedge. Yet
pyroxenites are ubiquitous in the melting region beneath magmatic arcs. Because they …

Transcrustal and source processes affecting the chemical characteristics of magmas in a hyperactive volcanic zone

CRC Santa Cruz, GF Zellmer, CH Stirling… - … et Cosmochimica Acta, 2023 - Elsevier
Arc magma generation and evolution are affected by transcrustal processes, such as
assimilation and fractional crystallisation, and source processes like slab influx into the …

Mantle-derived high-K magmatic fluxes in northeast Iran arc: Constraints from zircon U-Pb-O-Hf and bulk rock major-trace elements and Sr-Nd-Pb isotopes

HS Moghadam, QL Li, XH Li, M Chiaradia, O Karsli… - Gondwana …, 2023 - Elsevier
Most continental arcs are built up over a long time (≥ 100 myr), and while subduction may
be ongoing throughout this interval, magmatism appears to be highly episodic. This episodic …

[HTML][HTML] Garnet stability during crustal melting: Implications for chemical mohometry and secular change in arc magmatism and continent formation

NMW Roberts, JD Hernández-Montenegro, RM Palin - Chemical Geology, 2024 - Elsevier
Understanding how new felsic crust is formed and subsequently evolves through time is
critical to identifying the geodynamic regimes that have dominated various parts of Earth …

Garnet clinopyroxenite formation via amphibole-dehydration in continental arcs: Evidence from Fe isotopes

ES Sosa, CE Bucholz… - Earth and Planetary …, 2024 - Elsevier
Lower-crustal garnet clinopyroxenite (sometimes termed “arclogite”) fractionation in thick-
crustal (> 35 km) arc settings presents a compelling model to explain Fe-depletion trends …