Max Collinet
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View article: Felsic Magmatism on Venus Generated by Crustal Recycling and Melting
Felsic Magmatism on Venus Generated by Crustal Recycling and Melting Open
The observation of low viscosity lava flows and shield volcanoes on radar images, combined with X‐ray fluorescence analyses performed by Soviet landers, strongly suggests that Venus's crust is primarily basaltic. However, near‐infrared emi…
View article: Experimental constraints on the origin of metal and carbon in ureilite meteorites
Experimental constraints on the origin of metal and carbon in ureilite meteorites Open
Ureilites are carbon‐rich ultramafic achondrites that display unique textures, including strips of metal and carbon phases situated along grain boundaries and in fractures. Shock metamorphism observed in ureilites suggests an episode of br…
View article: A Pyroxenite Mantle on Mercury? Experimental Insights from Enstatite Chondrite Melting at Pressures up to 5 GPa
A Pyroxenite Mantle on Mercury? Experimental Insights from Enstatite Chondrite Melting at Pressures up to 5 GPa Open
Enstatite chondrites (EC) are potential source material for the accretion of Mercury due to their reduced nature and enrichment in volatile elements. Understanding their melting properties is therefore important to better assess a scenario…
View article: A Pyroxenite mantle on Mercury? Experimental insights from enstatite chondrite melting at pressures up to 5 GPa
A Pyroxenite mantle on Mercury? Experimental insights from enstatite chondrite melting at pressures up to 5 GPa Open
Enstatite chondrites are potential source material for the accretion of Mercury due to their reduced nature and enrichment in volatile elements. Understanding their melting properties is therefore important to better assess a scenario wher…
View article: Determining the mantle composition of Venus: a preliminary investigation using thermodynamic modelling
Determining the mantle composition of Venus: a preliminary investigation using thermodynamic modelling Open
Venus is often referred to as the Earth’s twin due to its similar size and mass. While Venus surface is young (~750 Myr old on average), there is no direct evidence for large tectonic plates as we have on Earth. Most of the surface i…
View article: The potential for crustal delamination at the base of crustal plateaus on Venus: The case of Western Ovda Regio
The potential for crustal delamination at the base of crustal plateaus on Venus: The case of Western Ovda Regio Open
The crustal plateaus on Venus are highlands characterized by strongly deformed terrains, called tessera, and correspond to the stratigraphically oldest features on the planet [1]. Investigations of the gravity and topography signatures of …
View article: Formation of intermediate to felsic crustal plateaus on Venus: Is water required?
Formation of intermediate to felsic crustal plateaus on Venus: Is water required? Open
The observation of low viscosity lava flows and shield volcanoes on radar maps, combined with in-situ X-ray fluorescence analyses performed by three Soviet landers, strongly suggests that Venus' crust is primarily basaltic. Still, some of …
View article: The Temperature and Composition of the Mantle Sources of Martian Basalts
The Temperature and Composition of the Mantle Sources of Martian Basalts Open
The composition of basaltic melts in equilibrium with the mantle can be determined for several Martian meteorites and in‐situ rover analyses. We use the melting model MAGMARS to reproduce these primary melts and estimate the bulk compositi…
View article: The temperature and composition of the mantle sources of Martian basalts
The temperature and composition of the mantle sources of Martian basalts Open
The composition of basaltic melts in equilibrium with the mantle can be determined for several Martian meteorites and in-situ rover analyses. We use the melting model MAGMARS to reproduce these primary melts and estimate the bulk compositi…
View article: Seismic detection of a deep mantle discontinuity within Mars by InSight
Seismic detection of a deep mantle discontinuity within Mars by InSight Open
Constraining the thermal and compositional state of the mantle is crucial for deciphering the formation and evolution of Mars. Mineral physics predicts that Mars’ deep mantle is demarcated by a seismic discontinuity arising from the pressu…
View article: Homogeneous versus heterogeneous lunar mantle: Constraints from secondary crust production
Homogeneous versus heterogeneous lunar mantle: Constraints from secondary crust production Open
<p><strong>Introduction</strong></p> <p>The early Moon was covered by a global lunar magma ocean (LMO) whose solidification set the initial stage for the subsequent thermochemical evolution. Equilibrium solidi…
View article: The first <scp>main group</scp> ureilite with primary plagioclase: A missing link in the differentiation of the ureilite parent body
The first <span>main group</span> ureilite with primary plagioclase: A missing link in the differentiation of the ureilite parent body Open
MS‐MU‐012, a 15.5 g clast from the Almahata Sitta polymict ureilite, is the first known plagioclase‐bearing main group ureilite. It is a coarse‐grained (up to 4 mm), equilibrated assemblage of 52% olivine (Fo 88), 13% orthopyroxene (Mg# 89…
View article: Temperature and composition of the mantle sources of martian basalts as constrained by MAGMARS, a new melting model for FeO-rich peridotite
Temperature and composition of the mantle sources of martian basalts as constrained by MAGMARS, a new melting model for FeO-rich peridotite Open
The martian surface is predominantly covered by FeO-rich basalts and their alteration products. Several samples, either analyzed in situ by rovers or recovered as meteorites, might represent primitive (i.e. near-primary) basaltic melts tha…
View article: MAGMARS: A Melting Model for the Martian Mantle and FeO‐Rich Peridotite
MAGMARS: A Melting Model for the Martian Mantle and FeO‐Rich Peridotite Open
Martian basalts identified by rover in‐situ analyses and the study of meteorites represent a direct link to the melting process in the planet's interior and can be used to reconstruct the composition of the mantle and estimate its temperat…
View article: Convection and melting in a heterogenous lunar mantle
Convection and melting in a heterogenous lunar mantle Open
IntroductionDuring the early stages of lunar evolution, the large amount of heat available from the lunar forming impact led to extensive melting of the Moon’s silicate mantle giving rise to a magma ocean. The fractional crystallizat…
View article: Modeling melting of the Martian mantle and crust-mantle differentiation with global thermochemical evolution models
Modeling melting of the Martian mantle and crust-mantle differentiation with global thermochemical evolution models Open
Earth and Space Science Open Archive PosterOpen AccessYou are viewing the latest version by default [v1]Modeling melting of the Martian mantle and crust-mantle differentiation with global thermochemical evolution modelsAuthorsMaxCollinetiD…
View article: An empirical melting model for the Martian mantle
An empirical melting model for the Martian mantle Open
The Martian crust has long been thought to be made of relatively uniform FeO-rich mafic rocks but, over the last two decades, new meteorite discoveries, orbital and in-situ analysis of Martian rocks have painted a more nuanced picture. Alk…
View article: Experimental constraints on the onset of planetesimal melting, the formation of primitive achondrites and the distribution of alkali elements in the solar nebula
Experimental constraints on the onset of planetesimal melting, the formation of primitive achondrites and the distribution of alkali elements in the solar nebula Open
In this presentation, we will summarize the conclusions of three recent articles [1-3] describing partial melting experiments of ordinary and carbonaceous synthetic chondrites (H, LL, CI, CM and CV). The experiments highlight the role of a…
View article: Establishing the Liquid Phase Equilibrium of Angrites to Constrain Their Petrogenesis
Establishing the Liquid Phase Equilibrium of Angrites to Constrain Their Petrogenesis Open
Angrites are a series of differentiat-ed meteorites, extremely silica undersaturated and with unusally high Ca and Al contents [1]. They are thought to originate from a small planetesimal parent body of ~ 100-200 km in radius ([2-3]), can …