Formation of iron oxide–apatite deposits
Renewed economic interest in iron oxide–apatite (IOA) deposits—containing tens to
hundreds of millions of tonnes of Fe and substantial amounts of rare earth elements, P, Co …
hundreds of millions of tonnes of Fe and substantial amounts of rare earth elements, P, Co …
Bubble formation in magma
Volcanic eruptions are driven by bubbles that form when volatile species exsolve from
magma. The conditions under which bubbles form depend mainly on magma composition …
magma. The conditions under which bubbles form depend mainly on magma composition …
Trace elements in magnetite from massive iron oxide-apatite deposits indicate a combined formation by igneous and magmatic-hydrothermal processes
Iron oxide-apatite (IOA) deposits are an important source of iron and other elements (eg,
REE, P, U, Ag and Co) vital to modern society. However, their formation, including the …
REE, P, U, Ag and Co) vital to modern society. However, their formation, including the …
Textural studies of vesicles in volcanic rocks: an integrated methodology
Vesicles in volcanic rocks are frozen records of degassing processes in magmas. For this
reason, their sizes, spatial arrangements, numbers and shapes can be linked to physical …
reason, their sizes, spatial arrangements, numbers and shapes can be linked to physical …
Bubble nucleation in magmas: a dominantly heterogeneous process?
T Shea - Journal of Volcanology and Geothermal Research, 2017 - Elsevier
Bubble nucleation is at the heart of magma ascent and degassing. Nucleation kinetics
control how easily a magma exsolves its volatiles, and thereby its explosivity close to the …
control how easily a magma exsolves its volatiles, and thereby its explosivity close to the …
Can nanolites enhance eruption explosivity?
Degassing dynamics play a crucial role in controlling the explosivity of magma at erupting
volcanoes. Degassing of magmatic water typically involves bubble nucleation and growth …
volcanoes. Degassing of magmatic water typically involves bubble nucleation and growth …
Reconciling bubble nucleation in explosive eruptions with geospeedometers
S Hajimirza, HM Gonnermann, JE Gardner - Nature communications, 2021 - nature.com
Magma from Plinian volcanic eruptions contains an extraordinarily large numbers of
bubbles. Nucleation of those bubbles occurs because pressure decreases as magma rises …
bubbles. Nucleation of those bubbles occurs because pressure decreases as magma rises …
Bubble nucleation, growth and coalescence during the 1997 Vulcanian explosions of Soufrière Hills Volcano, Montserrat
Soufrière Hills Volcano had two periods of repetitive Vulcanian activity in 1997. Each
explosion discharged the contents of the upper 0.5–2km of the conduit as pyroclastic flows …
explosion discharged the contents of the upper 0.5–2km of the conduit as pyroclastic flows …
Oxide nanolitisation-induced melt iron extraction causes viscosity jumps and enhanced explosivity in silicic magma
Explosivity in erupting volcanoes is controlled by the degassing dynamics and the viscosity
of the ascending magma in the conduit. Magma crystallisation enhances both …
of the ascending magma in the conduit. Magma crystallisation enhances both …
Volatiles in subduction zone magmatism
The volatile cycle at subduction zones is key to the petrogenesis, transport, storage and
eruption of arc magmas. Volatiles control the flux of slab components into the mantle wedge …
eruption of arc magmas. Volatiles control the flux of slab components into the mantle wedge …