Matthew Gleeson

Research Fellow at Cardiff University studying melt transport processes in crystal-rich magma storage regions (he/him).

[Jesse Ridgway @McJuggerNuggets]

HEALTH UPDATE:

It has officially been one year since I contracted Covid-19 while on set for my movie that I’ve been working on.

I was once a very healthy 31-year old man, but now every day is a struggle for me.

A THREAD... 🧵

[Matthew Gleeson @MattGleesonGeo]

@Penny_Wieser Don't crush my rocks!!!

[Matthew Gleeson @MattGleesonGeo]

I'll be talking at 2:50 pm today about how we've made thermodynamic calculations easy for anyone to run in Python, and how to integrate these results with other tools (e.g. PySulfSar). Come and find out how to make PetThermoTools part of your Python workflow! #AGU23

[Dr. Penny Wieser @Penny_Wieser]

Final #AGU23 #VibeLab+collaborator push today
At 2:50 pm (room153) @MattGleesonGeo will be talking about PetThermoTools - easy to use functions for running MELTS calculations in Python!
https://t.co/TWDRG0FAEs

[Matthew Gleeson @MattGleesonGeo]

@LissenbergJohan @CU_EARTH Sounds awesome, kind of wish I could apply 🤣

[Dr. Penny Wieser @Penny_Wieser]

Interested in determining the P-T-X conditions of magma storage? Check out a preprint of our review for the Treatise of Geochemisty! https://t.co/rpt0rJBed8

[Dr. Penny Wieser @Penny_Wieser]

Us secretly hoping Lupin had a small breed in him so he would stop growing.... @embarkvet shows otherwise haha. Still 100% good boy.

[Matthew Gleeson @MattGleesonGeo]

Our new paper, modeling melt-mush reaction to determine porosity changes during reactive flow, is out!

TLDR: Melt-mush reaction is complex, but magma recharge into gabbroic mush zones could lead mush dissolution and the formation of melt channels!
@LissenbergJohan
@magmasource

[Nature Communications @NatureComms]

Gleeson et al., used a melt-mush reaction model to simulate the chemical, mineralogical and physical consequences of reactive flow in a multi-component mush system.

https://t.co/aZ6Obb1r4d

[Dr. Penny Wieser @Penny_Wieser]

Preprint alert!
TLDR: Recent interpretations of magma storage on the moon are plagued by very large analytical errors, such that almost all of the ~200 km of translithospheric storage can be attributed to propagation of analytical error....🧵https://t.co/hMMjARdso6

[Volcanica @WeAreVolcanica]

New paper!
PySulfSat is an open-source python tool for modeling sulfide and sulfate saturation in magmas! This comes from @Penny_Wieser and @MattGleesonGeo and you can get it here: https://t.co/oOnjqMcbIM

[Matthew Gleeson @MattGleesonGeo]

Therefore, we suggest that melt channelization trigger by melt replenishment could provide a critical mechanism of melt transfer within mush dominated magmatic systems.

[Matthew Gleeson @MattGleesonGeo]

New preprint alert! https://t.co/uFvO0VGQ7E
TLDR: We modelled the influence of melt-mush reaction on mush porosity. Mineralogy of the reacted solid material controls whether the mush porosity increases or decreases due to reactive flow!
@LissenbergJohan @magmasource

[Matthew Gleeson @MattGleesonGeo]

This process might be aided by the conductive transfer of heat from the new intrusion into the much, and natural samples show clear evidence of clinopyroxene dissolution following sill intrusions.

[Matthew Gleeson @MattGleesonGeo]

@marinebou_FR @CrpgNancy @IODP_France Really nice work @marinebou_FR big implications for magma differentiation and transport. @LissenbergJohan and I have also been modelling MMR from a thermodynamic perspective (https://t.co/uFvO0VGQ7E). Our results are mostly consistent (i.e. the importance of melt recharge)!

[No Context Brits @NoContextBrits]

RT to confuse an American.

[Matthew Gleeson @MattGleesonGeo]

@OlivierNamur @Penny_Wieser @corinjorgenson @Saffybonbon We're planning to run a lot more tests on EDS vs WDS data collection in the future. Really it seems WDS is only necessary/beneficial at low concentrations (especially for samples were beam damage/alkali migration is a concern)

[Matthew Gleeson @MattGleesonGeo]

@OlivierNamur @Penny_Wieser @corinjorgenson @Saffybonbon When I was testing this I was more thinking about the possibility of analysing small melt inclusions (where you aren't able to defocus the beam on an EPMA). One of the advantages of EDS is you can get excellent data with a beam current <1nA, useful for beam sensitive materials!