Ore-forming processes within granitic pegmatites

D London - Ore Geology Reviews, 2018 - Elsevier
Pegmatites are texturally complex igneous rocks marked by some combination of coarse but
variable crystal size, mineralogical zonation, prominent anisotropy of crystal orientations …

Silicic magma reservoirs in the Earth's crust

O Bachmann, C Huber - American Mineralogist, 2016 - degruyter.com
Magma reservoirs play a key role in controlling numerous processes in planetary evolution,
including igneous differentiation and degassing, crustal construction, and volcanism. For …

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 …

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 …

Rhyolite-MELTS: a modified calibration of MELTS optimized for silica-rich, fluid-bearing magmatic systems

GAR Gualda, MS Ghiorso, RV Lemons… - Journal of …, 2012 - academic.oup.com
Silicic magma systems are of great scientific interest and societal importance owing to their
role in the evolution of the crust and the hazards posed by volcanic eruptions. MELTS is a …

Zircon compositions as a pathfinder for porphyry Cu±Mo±Au deposits

YJ Lu, RR Loucks, M Fiorentini, TC McCuaig, NJ Evans… - 2016 - pubs.geoscienceworld.org
Zircon composition has great potential as a pathfinder for porphyry Cu±Mo±Au systems. The
present study used a large integrated laser ablation-inductively coupled plasma-mass …

An updated calibration of the plagioclase-liquid hygrometer-thermometer applicable to basalts through rhyolites

LE Waters, RA Lange - American mineralogist, 2015 - pubs.geoscienceworld.org
An updated and expanded data set that consists of 214 plagioclase-liquid equilibrium pairs
from 40 experimental studies in the literature is used to recalibrate the thermodynamic …

High silica granites: Terminal porosity and crystal settling in shallow magma chambers

CTA Lee, DM Morton - Earth and Planetary Science Letters, 2015 - Elsevier
Abstract High silica (> 70 wt.% SiO 2) granites (HSGs) are important carriers of highly
incompatible elements, thus, understanding their origin is relevant to understanding how the …

What controls chemical variation in granitic magmas?

JD Clemens, G Stevens - Lithos, 2012 - Elsevier
Consideration of the models that have been applied to explain the chemical variations within
granitic rock suites shows that most are inadequate to account for the main variations. This …

The oxidation state of Hadean magmas and implications for early Earth's atmosphere

D Trail, EB Watson, ND Tailby - Nature, 2011 - nature.com
Magmatic outgassing of volatiles from Earth's interior probably played a critical part in
determining the composition of the earliest atmosphere, more than 4,000 million years (Myr) …