Data Object S2

This directory contains petrologic modeling results for Elkins and Lambart (in review). Each 
Excel spreadsheet contains multiple worksheets with the outcomes of Melt-PX and pMELTS 
calculations, as described in the text. Aside from ÒDMÓ worksheets, which contain only 
peridotitic calculations, each worksheet shows results for melt fractions and mineral modes at 
each pressure, with pyroxenite outcomes on the left and peridotite on the right. Because 
peridotite lithologies melt at shallower depths than pyroxenites in all of our scenarios, peridotite 
mineral modes appear empty until melting initiates at higher pressures. Calculations were 
performed using the methods described in Lambart (2017).

Files included:
*  G2-1300: Melt fractions and mineral modes for G2 pyroxenite and coexisting peridotite, for 
mantle potential temperature of 1300 ¼C.
*  G2-1400: Melt fractions and mineral modes for G2 pyroxenite and coexisting peridotite, for 
mantle potential temperature of 1400 ¼C.
*  KG1-1300: Melt fractions and mineral modes for KG1 pyroxenite and coexisting peridotite, 
for mantle potential temperature of 1300 ¼C.
*  KG1-1400: Melt fractions and mineral modes for KG1 pyroxenite and coexisting peridotite, 
for mantle potential temperature of 1400 ¼C.
*  m7-16-1300: Melt fractions and mineral modes for m7-16 pyroxenite and coexisting 
peridotite, for mantle potential temperature of 1300 ¼C.
*  m7-16-1400: Melt fractions and mineral modes for m7-16 pyroxenite and coexisting 
peridotite, for mantle potential temperature of 1400 ¼C.
*  MIX1G-1300: Melt fractions and mineral modes for MIX1G pyroxenite and coexisting 
peridotite, for mantle potential temperature of 1300 ¼C.
*  MIX1G-1400: Melt fractions and mineral modes for MIX1G pyroxenite and coexisting 
peridotite, for mantle potential temperature of 1400 ¼C.
*  DM-all: Melt fractions and mineral modes for pure peridotite, for mantle potential 
temperatures of 1200, 1300, and 1400 ¼C.
