Recent posts

#21

easyMelts / Re: [EX] easyMelts version of ...

Last post by liushanke - February 17, 2025, 04:47:45 PM

Hi, I have known the answer: "P" stands for "+" and "M" for "-". Sorry for interrupting the thread.

Hi everyone,

I'm using eastMelts and have a question regarding setting the oxygen fugacity. I need to constrain my simulation to QFM+1, but I'm unsure which option to choose from the "Oxygen Fugacity" tab.

I see several options related to QFM, such as QFM P1~P3 and QFM M1~M7. Which of these options corresponds most closely to QFM+1? I've checked the manual and done some online searching, but haven't been able to find a definitive answer.

Any help or clarification would be greatly appreciated!

Thanks,
Shanke

#22

alphaMELTS for MATLAB/Python / Suppressing liquid and calcula...

Last post by lelkins - February 17, 2025, 03:12:47 PM

Hi Paula! I'm doing some initial testing with alphaMELTS 2 for python, and I would like to do a similar adiabatic/isentropic decompression melting calculation to the old alphaMELTS approach, with a suppressed liquid phase to determine entropy for a given Tp and bulk composition, and then calculating a melting path with the liquid turned back on. So far, I haven't been able to figure out all the necessary commands for python functions and calculations from the available tutorials, though. I know the python versions have been in beta and might not have all of this set up, but I'm finding it hard to tell what functions are possible. Is there an example, or just a list of the python tools and where they are in the package? or maybe some tips on suppressing phases and defining entropy, to get started?

Thanks!

#23

alphaMELTS 2 text-menu interface / Question about Equilibrium vs....

Last post by liushanke - February 17, 2025, 02:32:16 AM

Hello everyone,

I'm working with alphaMELTS (via alphamelts_win64.exe on Windows) and I'm having a bit of trouble understanding how to properly run equilibrium crystallization simulations.

With easyMelts, I can easily switch between fractional and equilibrium modes by choosing whether or not to fractionate solid phases (if my understanding is correct). However, I'm unsure how to achieve a true equilibrium mode within the alphamelts_win64.exe interface.

When I select option 8 in the main menu ("Solid phase(s) to change settings for"), I'm presented with options that seem to be primarily related to fractional crystallization:

Suppress all solid phases

Allow all standard solid phases; optionally limit maximum number

Do not fractionate any solid phases

Fractionate all standard solid phases (current)

Change whether residual solid is measured...

Adjust amount of solid fractionated during fractionation...

My understanding is that these options are primarily concerned with controlling fractional crystallization. Is it actually possible to perform a strict equilibrium crystallization simulation using alphamelts_win64.exe on Windows?

While the difference between the two modes may be minor for some magma systems, I'm concerned about the potential for significant discrepancies in certain situations, especially at higher pressures and water contents.

Any guidance on this would be greatly appreciated.

Thanks in advance,

Shanke

#24

easyMelts / Re: [EX] easyMelts version of ...

Last post by liushanke - February 17, 2025, 12:05:35 AM

Hi everyone,

I'm using eastMelts and have a question regarding setting the oxygen fugacity. I need to constrain my simulation to QFM+1, but I'm unsure which option to choose from the "Oxygen Fugacity" tab.

I see several options related to QFM, such as QFM P1~P3 and QFM M1~M7. Which of these options corresponds most closely to QFM+1? I've checked the manual and done some online searching, but haven't been able to find a definitive answer.

Any help or clarification would be greatly appreciated!

Thanks,
Shanke

#25

Windows / Re: Updated: enabling the WSL ...

Last post by Daniel - January 23, 2025, 10:56:55 PM

Hi Paula

I am on windows 10 (version: 22H2), I followed your tutorial through all the steps no problems, until finally running Melts-rhyolite, I get this message;

---> Default calculation mode is rhyolite-MELTS (v. 1.0.2).  Change this? (y or n): n
---> ************************************************************
---> Calculation mode is rhyolite-MELTS (public release v 1.0.2).
---> ************************************************************
---> Initializing data structures using selected calculation mode...
---> Building interface...
Error: Can't open display:

Thank you, I'll give easyMelts a go.

Thanks again for your help.

Daniel

#26

Windows / Re: Updated: enabling the WSL ...

Last post by Paula - January 23, 2025, 04:18:00 PM

Hi Daniel,

You need to give a bit more information e.g. are you on Windows 10 or 11?

That said, the GUI isn't really supported anymore. The Linux versions haven't been updated since 2018 and the Mac ones are even older. There have been some important bugs fixed in the underlying code but it's getting too difficult to build the interface. Also note that Ubuntu 20.04 LTS is only officially supported by the Ubuntu developers until April this year.

We recommend you try easyMelts instead, which is like a more modern version of the GUI and works on native Windows, Mac and Linux (see the alphaMELTS links page). Although our main development effort is with alphaMELTS we hope to continue providing occasional updates for easyMelts too.

Paula

#27

Windows / Re: Updated: enabling the WSL ...

Last post by Daniel - January 23, 2025, 04:46:54 AM

Hi
I have installed rhyolite-MELTS-Ubuntu-18.04-64bit, however when I try and run it through UBUNTU (20.04.6 LTS) I run into an error "can't open display", I could not find instruction on how to overcome this.

Any help would be appreciated

Thank You
Daniel

#28

alphaMELTS 2 text-menu interface / Re: Problem WARNING text-inter...

Last post by oldpetros - January 10, 2025, 06:39:21 AM

Thanks, Paula!

#29

The MELTS family of algorithms, and scientific discussion / Re: Why no clinopyroxene occur...

Last post by Gary - January 07, 2025, 07:26:16 PM

Hi, Paula

I tried suppressing olivine. The easyMelts did not work. Then I increased the temperatures and decreased the pressures, then there was no fractionate phase. Next should I continue to adjust the conditions until the fractionate clinopyroxene occurs?
Many thanks!

Gary

#30

The MELTS family of algorithms, and scientific discussion / Re: Why no clinopyroxene occur...

Last post by Paula - January 07, 2025, 09:52:25 AM

Hi Gary,

Have you tried suppressing olivine?

Paula