DOI: 10.6084/m9.figshare.25771797.v1
title: Subducted carbon weakens the forearc mantle wedge in a warm subduction zone

description: This repository includes dataset used in the following article:Oyanagi & Okamoto, Subducted carbon weakens the forearc mantle wedge in a warm subduction zone, <i>Nature Communications.</i><br>Files used in and obtained from Perple_X version 7.1.2.<br>Contents<b>1_Sediments in NE Japan<br></b>The folder contains input (*.dat file) and output (*.tab files) of thermodynamic modeling of subducting sediments in the NE Japan subduction zone. Files used in Fig. 2a and Supplementary Figs. 1a-c.<br><br><b>2_Sediments at Nankai<br></b>The folder contains input (*.dat file) and output (*.tab files) of thermodynamic modeling of subducting sediments in the Nankai subduction zone. Files used in Fig. 2b and Supplementary Figs. 1d-f.<br><br><b>3_Fluid infiltration from NE Japan sediments (serpentinites)<br></b>The folder contains inputs (*.dat files) and outputs (*.tab files) of the 0-d infiltration model along P-T conditions at NE Japan geotherm. Infiltration of fluids from subducting NE Japan sediments into a hydrated mantle wedge (serpentinite) was modeled. No fluids were fractionated (mode 0 calculation in VERTEX). Files used in Fig. 2e, f and Supplementary Fig. 2a, b, e, f.<br><br><b>4_Fluid infiltration from Nankai sediments (serpentinites)<br></b>The folder contains inputs (*.dat files) and outputs (*.tab files) of the 0-d infiltration model along P-T conditions at Nankai geotherm. Infiltration of fluids from subducting Nankai sediments into a hydrated mantle wedge (serpentinite) was modeled. No fluids were fractionated (mode 0 calculation in VERTEX). Files used in Fig. 2g, h and Supplementary Fig. 3a, b, e, f.<br><br><b>5_Fractional Model<br></b>The folder contains inputs (*.dat files) and outputs (*.tab files) of the 0-d infiltration model along P-T conditions at NE Japan and Nankai geotherm. Infiltration of fluids from subducting sediments into a hydrated mantle wedge (serpentinite) has been modeled. Fluids (COH fluid) were fractionated (mode 1 calculation in VERTEX). Files used in Supplementary Figs. 2c, d, e, h, k, l and 3c, d, e, h, k, l.<br><br><b>6_Fluid infiltration from NE Japan sediments (DMM)<br></b>The folder contains inputs (*.dat files) and outputs (*.tab files) of thermodynamic modeling ("0-d infiltration mode" in Perple_X) in the NE Japan subduction zone. Infiltration of fluids from subducting NE Japan sediments into an anhydrous mantle wedge (depleted peridotite) was modeled. Files used in Supplementary Fig. 4a, b.<br><br><b>7_Fluid infiltration from Nankai sediments (DMM)<br></b>The folder contains inputs (*.dat files) and outputs (*.tab files) of thermodynamic modeling ("0-d infiltration mode" in Perple_X) in the Nankai subduction zone. Infiltration of fluids from subducting Nankai sediments into an anhydrous mantle wedge (depleted peridotite) was modeled. Files used in Supplementary Figs. 4c, d.<br><br><b>8_AOC in NE Japan<br></b>The folder contains input (*.dat file) and outputs (*.tab files) of thermodynamic modeling of subducting altered oceanic crust (AOC) in the NE Japan subduction zone. Files used in Supplementary Fig. 5a.<br><br><b>9_AOC at Nankai<br></b>Folder contains input (*.dat file) and outputs (*.tab files) of thermodynamic modeling of subducting altered oceanic crust (AOC) in the Nankai subduction zone. Files used in Supplementary Fig. 5b.<br><br><b>10_Parameter study (effect of sediment type)<br></b>The folder contains inputs (*.dat files) and outputs (*.tab files) of thermodynamic modeling for the parameter study investigating the effect of sediment type on talc formation in the forearc mantle wedge. Files used in Supplementary Fig. 8.<br><br><b>11_Sediments in Cascadia<br></b>This folder contains input (*.dat file) and outputs (*.tab files) of thermodynamic modeling of subducting sediments in the Nankai subduction zone. Files used in Supplementary Fig. 9a, b.<br><br><b>12_Fluid Infiltration from Cascadia Sediments (Serpentinites)<br></b>The folder contains inputs (*.dat files) and outputs (*.tab files) of the 0-d infiltration model along P-T conditions at Cascadia geotherm. Infiltration of fluids from subducting Cascadia sediments into a hydrated mantle wedge (serpentinite) was modeled. No fluids were fractionated (mode 0 calculation in VERTEX). Files used in Supplementary Fig. 9d, e.<br><br><b>perple_x_option.dat<br></b>Option file for the Perple_X software.<br><br><b>solution_model.dat<br></b>Model of mineral solid solutions. Unedited from the original file.*****