The architecture, chemistry, and evolution of continental magmatic arcs

MN Ducea, JB Saleeby… - Annual Review of Earth …, 2015 - annualreviews.org
Continental magmatic arcs form above subduction zones where the upper plate is
continental lithosphere and/or accreted transitional lithosphere. The best-studied examples …

The causes of continental arc flare ups and drivers of episodic magmatic activity in Cordilleran orogenic systems

JB Chapman, JE Shields, MN Ducea, SR Paterson… - Lithos, 2021 - Elsevier
Continental arcs in Cordilleran orogenic systems display episodic changes in magma
production rate, alternating between flare ups (70–90 km 3 km− 1 Myr− 1) and lulls (< 20 km …

[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 …

How important is the role of crystal fractionation in making intermediate magmas? Insights from Zr and P systematics

CTA Lee, O Bachmann - Earth and Planetary Science Letters, 2014 - Elsevier
Most magmatism on Earth forms by direct melting of the mantle, generating basalts at the
low silica end of the terrestrial compositional spectrum. However, most subduction zone …

On the origin of crystal-poor rhyolites: extracted from batholithic crystal mushes

O Bachmann, GW Bergantz - Journal of Petrology, 2004 - academic.oup.com
The largest accumulations of rhyolitic melt in the upper crust occur in voluminous silicic
crystal mushes, which sometimes erupt as unzoned, crystal-rich ignimbrites, but are most …

Rhyolites and their source mushes across tectonic settings

O Bachmann, GW Bergantz - Journal of Petrology, 2008 - academic.oup.com
Evolved magmas, including highly explosive rhyolites, are mainly generated by extraction of
viscous melts from solid residues either in (1) partial melting zones within the crust …

Quantum magmatism: Magmatic compositional gaps generated by melt-crystal dynamics

J Dufek, O Bachmann - Geology, 2010 - pubs.geoscienceworld.org
Compositional gaps are common in volcanic series worldwide. The pervasive generation of
compositional gaps influences the mechanical and thermal properties of the crust, and holds …

Empirical garnet–biotite–plagioclase–quartz (GBPQ) geobarometry in medium-to high-grade metapelites

CM Wu, J Zhang, LD Ren - Journal of Petrology, 2004 - academic.oup.com
On the basis of the net transfer reactions among garnet, biotite, plagioclase and quartz (for
both Mg and Fe end-member models), the garnet–biotite–plagioclase–quartz (GBPQ) …

The robustness of the Zr-in-rutile and Ti-in-zircon thermometers during high-temperature metamorphism (Ivrea-Verbano Zone, northern Italy)

TA Ewing, J Hermann, D Rubatto - Contributions to Mineralogy and …, 2013 - Springer
This study investigates the behaviour of the Zr-in-rutile and Ti-in-zircon thermometers in
granulite facies metapelites from the Ivrea-Verbano Zone lower crustal section. U–Pb ages …

Lower crustal magma genesis and preservation: a stochastic framework for the evaluation of basalt–crust interaction

J Dufek, GW Bergantz - Journal of Petrology, 2005 - academic.oup.com
We present a quantitative assessment of the thermal and dynamic response of an
amphibolitic lower crust to the intrusion of basaltic dike swarms in an arc setting. We …