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MAGLAB
 

MAGLAB allows for calculating the compositions and fractions of CO2-H2O-bearing melts together with corresponding electrical conductivity of partially molten mantle at mantle-relevant pressure, temperature and volatile content:
a/ Pressure = 2 – 10 GPa;
b/ Temperature = 900 – 1700°C;
b/ Bulk rock CO2 content = 0.0001 wt% - 1 wt% ;
c/ Bulk rock H2O content = 0 wt% - 1 wt%.

For some pressure-temperature-volatile content conditions, melt composition cannot be unequivocally predicted and MAGLAB yields two distinct, carbonate-rich and silicate-rich, solutions. While only one liquid is expected to be stabilized and MAGLAB platform provides this most probable solution (see details in Massuyeau et al., “MAGLAB: a computing platform connecting geophysical signatures to melting processes in Earth’s mantle”, submitted in PEPI https://doi.org/10.1016/j.pepi.2020.106638), users can also display the two solutions by ticking ‘Second solution’, with the most probable solution then displayed as bold.

More information or help about calculations in MAGLAB may be found in the related paper and its supplementary information (Massuyeau et al., “MAGLAB: a computing platform connecting geophysical signatures to melting processes in Earth’s mantle”, submitted in PEPI), as well as in the user guide (by ticking ‘Download user guide’). Also more information or help may be requested from the corresponding author (Malcolm Massuyeau, malcolm.massuyeau@gmail.com).

{{Min}} : {{Seconde}} z
1. INPUT
  
 
Console  
 
[{{inputs[x].value_min_show}}-{{inputs[x].value_max_show}}]  
 
[{{inputs[x].value_min_show}}-{{inputs[x].value_max_show}}]
  User data
? Copy your input data in the text field on the right
  From/to
? The input vector will be constructed from a starting value, an ending value and either a step size between values or a total number of values
[{{inputs[x].value_min_show}}-{{inputs[x].value_max_show}}]
  {{inputs[x].value_unit}}
  %
  User data
? Copy your input data in the text field on the right
  From/to
? The input vector will be constructed from a starting value, an ending value and either a step size between values or a total number of values
[{{inputs[x].value_min_show}}-{{inputs[x].value_max_show}}]
       
  User data
? Copy your input data in the text field on the right
From   Step count  
  To   Step value  
  From/to
? The input vector will be constructed from a starting value, an ending value and either a step size between values or a total number of values
Fixed mantle-like (pyrolite) composition of olivine and orthopyroxene  
Composition of olivine and orthopyroxene defined by the user
Mineral fraction


Olivine composition (wt%)

Orthopyroxene composition (wt%)


Mineral fraction


      2. COMPUTE
     
  {{status}}
 
 
  {{progress_percent}} %
 
  In progress
 





3. OUTPUT
      

Pressure-temperature conditions Mantle volatile contents Melt Bulk peridotite (peridotite+melt)
P-T conditions Bulk volatile contents Presence   Composition Fraction Density Electrical conductivity
P Depth T CO2 H2O yes/   SiO2 TiO2 Al2O3 FeO CaO MgO Na2O K2O H2O CO2   Fm,melt Fv,melt ρ σ log (σ)
GPa km °C wt% wt% no wt% wt% wt% wt% wt% wt% wt% wt% wt% wt% wt% vol% g.cm-3 S.m-1 S.m-1
{{vect_input_pressure[key]}} {{vect_input_pressure[key]}} {{vect_sol1_deph[key]}} {{vect_sol1_deph[key]}} {{vect_input_temperature[key]}} {{vect_input_temperature[key]}}     {{vect_input_co2_bulk[key]}} {{vect_input_co2_bulk[key]}} {{vect_input_h2o_bulk[key]}} {{vect_input_h2o_bulk[key]}}     {{vect_input_aens[key]}} {{vect_input_aens[key]}} {{vect_input_afo[key]}} {{vect_input_afo[key]}} {{vect_sol1_probably[key]}} {{vect_presence[key]}} {{vect_presence[key]}}          
{{vect_sol2_probably[key]}}      
{{vect_input_pressure[key]}} {{vect_soldef_deph[key]}} {{vect_input_temperature[key]}}   {{vect_input_co2_bulk[key]}} {{vect_input_h2o_bulk[key]}}   {{vect_input_aens[key]}} {{vect_input_afo[key]}} {{vect_soldef_probably[key]}} {{vect_presence[key]}}        
 
  ! out of bounds for melt fraction
  ★ two solutions exist
  x no solution



GRAPH MAKER
  

  line      

  markers      
Pressure-temperature conditions Mantle volatile contents Activity Melt Bulk peridotite (peridotite+melt)
P-T conditions Bulk volatile contents Composition Fraction Density Electrical conductivity  
P Depth T CO2 H2O aEns aFo SiO2 TiO2 Al2O3 FeO CaO MgO Na2O K2O H2O CO2   Fm,melt Fv,melt ρ σ log (σ)
GPa km °C wt% wt% wt% wt% wt% wt% wt% wt% wt% wt% wt% wt% wt% vol% g.cm-3 S.m-1 S.m-1
X  
Y