Recent Posts

1

General usage / Re: [EX] alphaMELTS version of tutorial: 'Quick start using MELTS'

« Last post by Paula on April 19, 2018, 08:15:33 pm »

Right click on one of the FracXralTutorial.txt links - either here, in the previous reply, or the original post - and choose "Save Link As..." (Firefox, Chrome), "Download Linked File As..." (Safari), or something similar.

Also, make sure you have run the install.command script that is in the alphaMELTS download folder. You can get brief instructions by choosing your operating system on the alphaMELTS download site.

Paula

2

General usage / Re: [EX] alphaMELTS version of tutorial: 'Quick start using MELTS'

« Last post by amir szczupak on April 18, 2018, 05:48:41 am »

hi Paula,

your reply last time helped me a lot with understanding how alphaMELTS works, and i very much appreciate the detailed answer. 
sorry for the very delayed reply, but i couldn't find the updated file which you refered me to- the one that should fix the problem i've been having with the degree output ('1486..' instead of '1200').
i'll appreciate it, if you can guide me on how to get to the updated file that'll solve my problem (maybe a link or something).
thank you for your time, and (again) sorry for the delayed reply.

Amir 

3

Scientific discussion / Re: paper combining multiphase flow with AlphaMELTS

« Last post by max.tirone on April 01, 2018, 02:08:01 am »

...and here is the second one (2/3) still free full access:

Petrological Geodynamics of Mantle Melting II. AlphaMELTS + Multiphase Flow: Dynamic Fractional Melting

https://www.frontiersin.org/articles/10.3389/feart.2018.00018/full

additional material here:
https://figshare.com/collections/max-front2/3745487

max

4

MELTS, pMELTS and pHMELTS algorithms / Amphibole and pyroxene output

« Last post by kchristle on March 21, 2018, 09:27:52 am »

I have been modeling an intermediate magma but haven't been able to get amphibole and pyroxene to output properly. In order to get any amphibole to be part of the output I have to deselect pyroxenes from the available phases. Otherwise, all I get is pyroxene with no amphibole phase present. I have widely adjusted the H2O values with no change to this problem. I've tried this with both MELTS for Excel and rhyolite-MELTS 1.1.0 with the same results.

5

General usage / Re: [EX] alphaMELTS version of tutorial: 'Quick start using MELTS'

« Last post by Paula on March 12, 2018, 08:50:48 am »

Hi,

For the four missing lines, I'm not sure whether you mean that four lines are missing compared to what was input in the file, or that it is missing four lines compared to what's shown above. If the former, then that's because alphaMELTS only echoes back those lines that it is using. Any lines that are specific to the graphical user interface (and any blank lines) are ignored - they do not cause a read error but they are not printed to screen either. For the latter i.e. the four "suppress" lines, those lines were in the original Morb.melts file from the original GUI tutorial, as those phases were still in testing at the time that the tutorial was first written. It makes no difference to this particular example whether the "suppress" lines are included or not.

For the temperature, that is the liquidus temperature that you would expect, except that it is Kelvin. As ALPHAMELTS_CELSIUS_OUTPUT is set to true in the settings file, FracXtalTutorial.txt, this suggests that the file is not getting read in for some reason. The link to the file was out of date, because of things being moved from one server to another, but I've just fixed it. So make sure you download the file and follow the instructions to start the perl script, run_alphamelts.command, rather than the alphamelts executable.

Paula

6

General usage / Re: [EX] alphaMELTS version of tutorial: 'Quick start using MELTS'

« Last post by amir szczupak on March 11, 2018, 04:07:49 am »

hello, i'm trying to install alphaMELTS in my computer, and i followed the instructions that you offer on your website. I tried to run the Morb.melts file, but the output (after i chose '1' and insererted the file name 'Morb.melts') is missing the last four lines. later on, the initial temperature changes from '1200' to '1486.519...'. Sorry for my ignorance, but i'll very much appreciate help in the subject. thank you.

7

MELTS, pMELTS and pHMELTS algorithms / Re: PTpath files

« Last post by lelkins on February 25, 2018, 04:01:57 pm »

Aha, that worked! Thanks, Paula!!

8

MELTS, pMELTS and pHMELTS algorithms / Re: PTpath files

« Last post by Paula on February 19, 2018, 05:31:55 pm »

Hi Lynne,

Try running file_format.command on the PT file. It may or may not help. The issue (which is more to do with the file having Windows line endings than actually being on Windows) long predates v1.7, so that version will be fine as a test.

Let me know if you still have problems with v1.8.

Paula

9

MELTS, pMELTS and pHMELTS algorithms / Re: PTpath files

« Last post by lelkins on February 19, 2018, 05:01:09 pm »

Thanks, Paula! I'm actually on a Mac, though. I don't think there are empty lines, but I can double check.

I also realized that I am actually still running version 1.7. I had some issues upgrading to 1.8 and never followed through on it. I can try updating it again, though, if the newer version might have fixed this problem.

-Lynne

10

MELTS, pMELTS and pHMELTS algorithms / Re: PTpath files

« Last post by Paula on February 19, 2018, 03:42:42 pm »

Hi,

It seems to be a Windows-specific bug to do with line endings, which was in turn introduced while trying to fix line ending problems on Macs. We used to have a lot of line ending problems, especially when MacOS X was fairly new and e.g. Mac's Excel used different line endings to the Terminal program.

It should only affect the PT file because that's the only one that doesn't allow empty lines. I know you don't have empty lines in your file, but the way I was able to reproduce the problem on Linux was to add empty lines. So... if you are indeed on Windows let me know, and I'll send you a fixed version to try!

Paula