- Welcome to MELTS Software Users.
News:
alphaMELTS 2.3 standalone & for MATLAB/Python is now open source and available on GitHub (https://github.com/magmasource/alphaMELTS).
alphaMELTS 1.9 is available at the legacy download and information site.
For news of all MELTS software see the MELTS Facebook page.
Recent posts
#91
The MELTS family of algorithms, and scientific discussion / Re: Ni partitioning in cpx (ox...
Last post by asimow - July 25, 2024, 09:08:41 PMHi Jimmy,
It should be possible to set a mineral/melt partition coefficient for Sc for each phase. The default Sc partition coefficients for many phases is 0 (the only defined values in the default file are: clinopyroxene 0.51, feldspar 0.02, garnet 2.27, olivine 0.16, orthopyroxene 0.33). So, let's say you want to change D_Sc_cpx/melt to 4 and, for good measure, D_Sc_ilm/melt to, say, 0.25.
You make a file with these values to override the defaults. Let's call it new_trace_data.txt:
Set D: clinopyroxene Sc 4
Set D: rhm-oxide Sc 0.25
Add as many lines as you like to activate partitioning of Sc into those phases.
Then in your setting file, such as alphamelts_default_env.txt, make sure you have these lines:
ALPHAMELTS_DO_TRACE true
ALPHAMELTS_TRACE_INPUT_FILE new_trace_data.txt
That last one is what tells the program to read in your new partition coefficients. Just editing default_trace_data.txt doesn't do this ... that file is for information purposes only, unless you tell alphaMELTS to read it using ALPHAMELTS_TRACE_INPUT_FILE
Then when you run, you should see values of bulk D above one when the solid assemblage is cox-rich.
Try it.
Meanwhile, as for Co and Ni:
It should be possible to set a mineral/melt partition coefficient for Sc for each phase. The default Sc partition coefficients for many phases is 0 (the only defined values in the default file are: clinopyroxene 0.51, feldspar 0.02, garnet 2.27, olivine 0.16, orthopyroxene 0.33). So, let's say you want to change D_Sc_cpx/melt to 4 and, for good measure, D_Sc_ilm/melt to, say, 0.25.
You make a file with these values to override the defaults. Let's call it new_trace_data.txt:
Set D: clinopyroxene Sc 4
Set D: rhm-oxide Sc 0.25
Add as many lines as you like to activate partitioning of Sc into those phases.
Then in your setting file, such as alphamelts_default_env.txt, make sure you have these lines:
ALPHAMELTS_DO_TRACE true
ALPHAMELTS_TRACE_INPUT_FILE new_trace_data.txt
That last one is what tells the program to read in your new partition coefficients. Just editing default_trace_data.txt doesn't do this ... that file is for information purposes only, unless you tell alphaMELTS to read it using ALPHAMELTS_TRACE_INPUT_FILE
Then when you run, you should see values of bulk D above one when the solid assemblage is cox-rich.
Try it.
Meanwhile, as for Co and Ni:
#92
Website issues, and Miscellaneous / Re: Installing Version 2.3.0
Last post by asimow - July 25, 2024, 08:42:18 PMThere is a small typo in the install.command script. If you open it with any text editor, go to line 19 and change "install2.command" to "install.command". Save, then run it. That should fix the issue.
#93
Windows / Re: Melts for Excel: Server Er...
Last post by asimow - July 25, 2024, 08:40:08 PMTry the newest version of MELTS for Excel, available here:
https://www.dropbox.com/scl/fo/xqh2yzup482e30vff88z0/AIm2j4ZC9uE7RCGx2t81dgg?rlkey=x8okpiso2n7gjo3wrindzj3ep&dl=0
https://www.dropbox.com/scl/fo/xqh2yzup482e30vff88z0/AIm2j4ZC9uE7RCGx2t81dgg?rlkey=x8okpiso2n7gjo3wrindzj3ep&dl=0
#94
Windows / Re: Melts for Excel: Server Er...
Last post by Susan DeBari - July 17, 2024, 07:31:50 PMI just tried today too and had the same issue!
#95
Windows / Melts for Excel: Server Error ...
Last post by jtmitchell - July 17, 2024, 08:06:05 AMHi all,
I'm trying to do some panic modelling for a conference and I've been getting nothing but "server returned no results" errors today, both with updated and non-updated workbook links, and every flavour of Melts. I've been back through the troubleshooting guide and found the log file. It's giving me "invalid xml file received" and "requested URL is not found on the server" even on the default composition it downloads with. I've copied the log below. Has anyone else run into this issue? I'm used to the Excel version being a little wonky at times, but I've left it quite late to try and get this modelling done. Maybe I'm just missing something very obvious!
Thanks in advance!
MELTS model selected: rhyolite-MELTS_v1.0.x
------------------
Starting Equilibrate
Start: 7/17/2024 9:58:13 AM
------------------
Calculation number: 1
InputXML: dataXML=<MELTSinput><initialize><modelSelection>MELTS_v1.0.x</modelSelection><SiO2>70.934955066097</SiO2><TiO2>0.171639896651397</TiO2><Al2O3>12.9206699979246</Al2O3><Fe2O3>0.293263935644875</Fe2O3><Cr2O3>0</Cr2O3><FeO>0.97573935726614</FeO><MnO>0</MnO><MgO>0.476777490698326</MgO><NiO>0</NiO><CoO>0</CoO><CaO>1.36358362339721</CaO><Na2O>3.20394473749275</Na2O><K2O>4.85359485530896</K2O><P2O5>0</P2O5><H2O>4.80591710623913</H2O></initialize><calculationMode>equilibrate</calculationMode><title>MELTS Web Service called from Excel. [created 2014Apr23] (version 1.0.3)</title><sessionID></sessionID><constraints><setTP><initialT>1000</initialT><initialP>2000</initialP><fo2path>nno</fo2path><fo2Offset>0</fo2Offset></setTP></constraints><suppressPhase>amphibole</suppressPhase><suppressPhase>biotite</suppressPhase><suppressPhase>leucite</suppressPhase><fractionationMode>fractionateNone</fractionationMode></MELTSinput>
Request sent: 7/17/2024 9:58:13 AM
Current server state: 4
Request received: 7/17/2024 9:58:13 AM
Time to receive XML (s): 0.109375
Invalid XML received:<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<title>404 Not Found</title>
<h1>Not Found</h1>
<p>The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.</p>
Time to load XML (s): 0
Calculation failed, trying again...
Request sent: 7/17/2024 9:58:13 AM
Current server state: 4
Request received: 7/17/2024 9:58:13 AM
Time to receive XML (s): 0.109375
Invalid XML received:<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<title>404 Not Found</title>
<h1>Not Found</h1>
<p>The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.</p>
Time to load XML (s): 0
Two consecutive failures. Aborting...
I'm trying to do some panic modelling for a conference and I've been getting nothing but "server returned no results" errors today, both with updated and non-updated workbook links, and every flavour of Melts. I've been back through the troubleshooting guide and found the log file. It's giving me "invalid xml file received" and "requested URL is not found on the server" even on the default composition it downloads with. I've copied the log below. Has anyone else run into this issue? I'm used to the Excel version being a little wonky at times, but I've left it quite late to try and get this modelling done. Maybe I'm just missing something very obvious!
Thanks in advance!
MELTS model selected: rhyolite-MELTS_v1.0.x
------------------
Starting Equilibrate
Start: 7/17/2024 9:58:13 AM
------------------
Calculation number: 1
InputXML: dataXML=<MELTSinput><initialize><modelSelection>MELTS_v1.0.x</modelSelection><SiO2>70.934955066097</SiO2><TiO2>0.171639896651397</TiO2><Al2O3>12.9206699979246</Al2O3><Fe2O3>0.293263935644875</Fe2O3><Cr2O3>0</Cr2O3><FeO>0.97573935726614</FeO><MnO>0</MnO><MgO>0.476777490698326</MgO><NiO>0</NiO><CoO>0</CoO><CaO>1.36358362339721</CaO><Na2O>3.20394473749275</Na2O><K2O>4.85359485530896</K2O><P2O5>0</P2O5><H2O>4.80591710623913</H2O></initialize><calculationMode>equilibrate</calculationMode><title>MELTS Web Service called from Excel. [created 2014Apr23] (version 1.0.3)</title><sessionID></sessionID><constraints><setTP><initialT>1000</initialT><initialP>2000</initialP><fo2path>nno</fo2path><fo2Offset>0</fo2Offset></setTP></constraints><suppressPhase>amphibole</suppressPhase><suppressPhase>biotite</suppressPhase><suppressPhase>leucite</suppressPhase><fractionationMode>fractionateNone</fractionationMode></MELTSinput>
Request sent: 7/17/2024 9:58:13 AM
Current server state: 4
Request received: 7/17/2024 9:58:13 AM
Time to receive XML (s): 0.109375
Invalid XML received:<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<title>404 Not Found</title>
<h1>Not Found</h1>
<p>The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.</p>
Time to load XML (s): 0
Calculation failed, trying again...
Request sent: 7/17/2024 9:58:13 AM
Current server state: 4
Request received: 7/17/2024 9:58:13 AM
Time to receive XML (s): 0.109375
Invalid XML received:<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<title>404 Not Found</title>
<h1>Not Found</h1>
<p>The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.</p>
Time to load XML (s): 0
Two consecutive failures. Aborting...
#96
Website issues, and Miscellaneous / Installing Version 2.3.0
Last post by IsaiahSpring - June 20, 2024, 04:49:21 PMHi all,
I am having trouble installing the latest version of MELTS, 2.3.0. After downloading "alphamelts-app-2.3.0-macos-arm64.zip" from the Github and running the install.command I get this error:
Installation aborted or may be incomplete!
Use of uninitialized value $bin in concatenation (.) or string at ./install.command line 482.
Please log out and in and then and run the install script again.
Check the '' directory is in your path then choose 'n' to exit.
Press return to finish.
If anyone has any advice I would appreciate it!
Thanks
I am having trouble installing the latest version of MELTS, 2.3.0. After downloading "alphamelts-app-2.3.0-macos-arm64.zip" from the Github and running the install.command I get this error:
Installation aborted or may be incomplete!
Use of uninitialized value $bin in concatenation (.) or string at ./install.command line 482.
Please log out and in and then and run the install script again.
Check the '' directory is in your path then choose 'n' to exit.
Press return to finish.
If anyone has any advice I would appreciate it!
Thanks
#97
The MELTS family of algorithms, and scientific discussion / Re: Ni partitioning in cpx (ox...
Last post by GIGN - June 18, 2024, 09:25:49 PMHi Paul,
The software you have developed is excellent and has greatly assisted me in understanding magmatic processes. However, I have encountered some issues during the operation that require your help.
I am a student who has recently been using alphaMELTS to simulate the mobility of the Sc (Scandium) element in layered mafic–ultramafic intrusions. That is, the process of Sc enrichment from a deep magma chamber (5kbar) to near the surface (1 kbar) and ultimately into different minerals (e.g., Cpx, Ilm, Amp).
I have already attempted simulation in the deep magma chamber under isobaric conditions, with an initial composition of Sc at 37.41 ppm. At the end of the simulation, only Cpx showed enrichment of Sc (26 ppm), and other minerals (e.g. Ilm, Amp) did not exhibit enrichment of Sc.
I also tried changing the partition coefficient of Sc in clinopyroxene (D=0.51 to 4), modifying it directly from the default_trace_data.txt file, but it did not work. The exported results show the partition coefficient fluctuating between 0.49xxxx and 0.51xxxx, which is not the value I set.
I would like to ask:
(1) Can the simulation of Sc enrichment in other minerals be performed? (e.g., Ilm, Amp) I saw a post on the forum mentioning that "the system cannot simulate Co and Ni because the partition coefficients of these elements in Ol/Cpx/Opx are unstable............" Is Sc subject to the same issue?
(2) If I want to simulate both major and trace elements, especially the enrichment trends of some key metallic elements, do you have any suggestions?
(3) There are some teaching videos on YouTube from a few years ago, which are basically for macOS and Linux OS. Since my computer operates on Windows, are there any teaching videos suitable for Windows users?
Best wishes,
Jimmy Young
The software you have developed is excellent and has greatly assisted me in understanding magmatic processes. However, I have encountered some issues during the operation that require your help.
I am a student who has recently been using alphaMELTS to simulate the mobility of the Sc (Scandium) element in layered mafic–ultramafic intrusions. That is, the process of Sc enrichment from a deep magma chamber (5kbar) to near the surface (1 kbar) and ultimately into different minerals (e.g., Cpx, Ilm, Amp).
I have already attempted simulation in the deep magma chamber under isobaric conditions, with an initial composition of Sc at 37.41 ppm. At the end of the simulation, only Cpx showed enrichment of Sc (26 ppm), and other minerals (e.g. Ilm, Amp) did not exhibit enrichment of Sc.
I also tried changing the partition coefficient of Sc in clinopyroxene (D=0.51 to 4), modifying it directly from the default_trace_data.txt file, but it did not work. The exported results show the partition coefficient fluctuating between 0.49xxxx and 0.51xxxx, which is not the value I set.
I would like to ask:
(1) Can the simulation of Sc enrichment in other minerals be performed? (e.g., Ilm, Amp) I saw a post on the forum mentioning that "the system cannot simulate Co and Ni because the partition coefficients of these elements in Ol/Cpx/Opx are unstable............" Is Sc subject to the same issue?
(2) If I want to simulate both major and trace elements, especially the enrichment trends of some key metallic elements, do you have any suggestions?
(3) There are some teaching videos on YouTube from a few years ago, which are basically for macOS and Linux OS. Since my computer operates on Windows, are there any teaching videos suitable for Windows users?
Best wishes,
Jimmy Young
#98
alphaMELTS for MATLAB/Python / v2.3.0 of alphaMELTS for MATLA...
Last post by Paula - June 02, 2024, 01:33:58 PMalphaMELTS software has a new home on GitHub!
https://github.com/magmasource/alphaMELTS
v2.3.0 is now available for download. This release brings the suite of alphaMELTS software -- formerly alphaMELTS 2 (v2.2.1) and alphaMELTS for MATLAB/Python (v1.2.2) -- into one open-source repository. The same versioning is now applied to all interfaces, as the majority of edits are to the C library of MELTS functions that is common to all the software interfaces.
The binaries have been repackaged so that users need only download files for the platforms (MacOS, Windows, Linux) and alphaMELTS interface that they intend to use. This arrangement is transitional, while workflows are being developed to package the software for PyPI, Homebrew, CRAN, MATLAB File Exchange etc.
The Caltech-hosted GitList repository and the GitLab-hosted private repository are being preserved as placeholders for previous users of alphaMELTS for MATLAB/Python, but no new members will be added to the alphaMELTS group.
https://github.com/magmasource/alphaMELTS
v2.3.0 is now available for download. This release brings the suite of alphaMELTS software -- formerly alphaMELTS 2 (v2.2.1) and alphaMELTS for MATLAB/Python (v1.2.2) -- into one open-source repository. The same versioning is now applied to all interfaces, as the majority of edits are to the C library of MELTS functions that is common to all the software interfaces.
The binaries have been repackaged so that users need only download files for the platforms (MacOS, Windows, Linux) and alphaMELTS interface that they intend to use. This arrangement is transitional, while workflows are being developed to package the software for PyPI, Homebrew, CRAN, MATLAB File Exchange etc.
The Caltech-hosted GitList repository and the GitLab-hosted private repository are being preserved as placeholders for previous users of alphaMELTS for MATLAB/Python, but no new members will be added to the alphaMELTS group.
#99
alphaMELTS 2 text-menu interface / v2.3.0 of the alphaMELTS 2 app...
Last post by Paula - June 02, 2024, 01:27:57 PMalphaMELTS software has a new home on GitHub!
https://github.com/magmasource/alphaMELTS
v2.3.0 is now available for download. This release brings the suite of alphaMELTS software -- formerly alphaMELTS 2 (v2.2.1) and alphaMELTS for MATLAB/Python (v1.2.2) -- into one open-source repository. The same versioning is now applied to all interfaces, as the majority of edits are to the C library of MELTS functions that is common to all the software interfaces.
The binaries have been repackaged so that users need only download files for the platforms (MacOS, Windows, Linux) and alphaMELTS interface that they intend to use. This arrangement is transitional, while workflows are being developed to package the software for PyPI, Homebrew, CRAN, MATLAB File Exchange etc.
The Caltech-hosted GitList repository and the GitLab-hosted private repository are being preserved as placeholders for previous users of alphaMELTS 2, but no new members will be added to the alphaMELTS group.
https://github.com/magmasource/alphaMELTS
v2.3.0 is now available for download. This release brings the suite of alphaMELTS software -- formerly alphaMELTS 2 (v2.2.1) and alphaMELTS for MATLAB/Python (v1.2.2) -- into one open-source repository. The same versioning is now applied to all interfaces, as the majority of edits are to the C library of MELTS functions that is common to all the software interfaces.
The binaries have been repackaged so that users need only download files for the platforms (MacOS, Windows, Linux) and alphaMELTS interface that they intend to use. This arrangement is transitional, while workflows are being developed to package the software for PyPI, Homebrew, CRAN, MATLAB File Exchange etc.
The Caltech-hosted GitList repository and the GitLab-hosted private repository are being preserved as placeholders for previous users of alphaMELTS 2, but no new members will be added to the alphaMELTS group.
#100
alphaMELTS 2 Home / v2.3.0 of alphaMELTS has moved...
Last post by Paula - June 02, 2024, 01:24:14 PMalphaMELTS software has a new home on GitHub!
https://github.com/magmasource/alphaMELTS
v2.3.0 is now available for download. This release brings the suite of alphaMELTS software -- formerly alphaMELTS 2 (v2.2.1) and alphaMELTS for MATLAB/Python (v1.2.2) -- into one open-source repository. The same versioning is now applied to all interfaces, as the majority of edits are to the C library of MELTS functions that is common to all the software interfaces.
The binaries have been repackaged so that users need only download files for the platforms (MacOS, Windows, Linux) and alphaMELTS interface that they intend to use. This arrangement is transitional, while workflows are being developed to package the software for PyPI, Homebrew, CRAN, MATLAB File Exchange etc.
The Caltech-hosted GitList repositories and the GitLab-hosted private repositories are being preserved as placeholders for previous users of alphaMELTS 2 and alphaMELTS for MATLAB/Python, but no new members will be added to the alphaMELTS group.
https://github.com/magmasource/alphaMELTS
v2.3.0 is now available for download. This release brings the suite of alphaMELTS software -- formerly alphaMELTS 2 (v2.2.1) and alphaMELTS for MATLAB/Python (v1.2.2) -- into one open-source repository. The same versioning is now applied to all interfaces, as the majority of edits are to the C library of MELTS functions that is common to all the software interfaces.
The binaries have been repackaged so that users need only download files for the platforms (MacOS, Windows, Linux) and alphaMELTS interface that they intend to use. This arrangement is transitional, while workflows are being developed to package the software for PyPI, Homebrew, CRAN, MATLAB File Exchange etc.
The Caltech-hosted GitList repositories and the GitLab-hosted private repositories are being preserved as placeholders for previous users of alphaMELTS 2 and alphaMELTS for MATLAB/Python, but no new members will be added to the alphaMELTS group.