Correlating tephras and cryptotephras using glass compositional analyses and numerical and statistical methods: review and evaluation
We define tephras and cryptotephras and their components (mainly ash-sized particles of
glass±crystals in distal deposits) and summarize the basis of tephrochronology as a …
glass±crystals in distal deposits) and summarize the basis of tephrochronology as a …
How are silicic volcanic and plutonic systems related? Part 2: Insights from phase-equilibria, thermodynamic modelling and textural evidence
Thermodynamic modelling shows that, although high-silica rhyolitic melts can form through
fractionation of low-silica rhyolitic magmas the complementary cumulates do not have …
fractionation of low-silica rhyolitic magmas the complementary cumulates do not have …
Gaining acuity on crystal terminology in volcanic rocks
GF Zellmer - Bulletin of Volcanology, 2021 - Springer
Given the prolific work on the petrography and mineral chemistry of volcanic rocks to
understand magmatic processes for well over a century, it is surprising that there are no …
understand magmatic processes for well over a century, it is surprising that there are no …
High-resolution LA-ICP-MS trace element map** of igneous minerals: In search of magma histories
We report experiments on optimisation of LA-ICP-MS map** as a tool for visualising and
quantifying internal structure of trace element concentration in igneous minerals. The …
quantifying internal structure of trace element concentration in igneous minerals. The …
Insights into magma storage beneath a frequently erupting arc volcano (Villarrica, Chile) from unsupervised machine learning analysis of mineral compositions
A key method to investigate magma dynamics is the analysis of the crystal cargoes carried
by erupted magmas. These cargoes may comprise crystals that crystallize in different parts …
by erupted magmas. These cargoes may comprise crystals that crystallize in different parts …
Trace element partitioning in strongly peraluminous rare-metal silicic magmas–Implications for fractionation processes and for the origin of the Macusani Volcanics …
M Pichavant, S Erdmann, DJ Kontak… - … et Cosmochimica Acta, 2024 - Elsevier
Abstract The Macusani Volcanics and related rocks (SE Peru) are well known examples of
erupted strongly peraluminous rare-metal rich silicic magmas. We used the …
erupted strongly peraluminous rare-metal rich silicic magmas. We used the …
[HTML][HTML] Micro-textures in plagioclase from 1994–1995 eruption, Barren Island Volcano: evidence of dynamic magma plumbing system in the Andaman subduction …
ML Renjith - Geoscience frontiers, 2014 - Elsevier
A systematic account of micro-textures and a few compositional profiles of plagioclase from
high-alumina basaltic aa lava erupted during the year 1994–1995, from Barren Island …
high-alumina basaltic aa lava erupted during the year 1994–1995, from Barren Island …
Structural control of igneous intrusions on fluid migration in sedimentary basins: the case study of large bitumen seeps at Cerro Alquitrán and Cerro La Paloma …
Cooling subvolcanic igneous intrusions are known to have a tremendous impact on fluid
flow in the shallow Earth's crust. However, the long-term post-cooling legacy of subvolcanic …
flow in the shallow Earth's crust. However, the long-term post-cooling legacy of subvolcanic …
The magmatic evolution of South-East Crater (Mt. Etna) during the February–April 2021 sequence of lava fountains from a mineral chemistry perspective
Abstract The South-East Crater (SEC) at Mt. Etna started a period of lava fountaining in
December 2020, producing over 60 paroxysms until February 2022. The activity had an …
December 2020, producing over 60 paroxysms until February 2022. The activity had an …
Effects of crystal shape‐and size‐modality on magma rheology
Erupting magma often contains crystals over a wide range of sizes and shapes, potentially
affecting magma viscosity over many orders of magnitude. A robust relation between …
affecting magma viscosity over many orders of magnitude. A robust relation between …