Dual Pathways Controlling Mn-Carbonate Mineralization
Description
This PDF file include: Tables S1-S3. Table S1 EMPA analysis results of Mn-carbonates from OP-1 and OP-2 profiles (%). Table S2 Major element (%), TOC (%) and C-O isotope (‰) of Mn ores and hosted rocks. Table S3 Rare earth element of Mn ore and hosted rock samples (ppm).
Files
Steps to reproduce
Software environment Microsoft Excel for Microsoft 365 (version 2402) All original data are provided as supplementary file “Data_GSAB.xlsx” (see uploaded data files). Data preparation The Excel file contains two worksheets: “OP1_Mn_ores” and “OP2_Mn_ores”. Each worksheet includes columns: Sample ID, MnO, CaO, MgO, TFe₂O₃, Al₂O₃, P₂O₅, total REY, δ¹³C (‰), TOC (%), and individual REE concentrations (ppm). PAAS reference values (McLennan, 1989) are given in a separate sheet “PAAS”. Steps to generate each plot 1. Cross plots of major oxides and total REY versus MnO (for OP1 and OP2 separately) Open worksheet, e.g., “OP1_Mn_ores”. Select data columns: MnO (X axis) and CaO (Y axis). Insert → Scatter (XY) → choose marker type. Add axis labels: “MnO (wt%)” and “CaO (wt%)”. Repeat the same for MgO, TFe₂O₃, Al₂O₃, P₂O₅, and total REY versus MnO. Apply the same procedure to worksheet “OP2_Mn_ores”. 2. δ¹³C versus MnO Highlight columns MnO (X) and δ¹³C (Y) from each worksheet. Insert scatter plot, label axes “MnO (wt%)” and “δ¹³C (‰ VPDB)”. 3. δ¹³C versus TOC Similar as above: TOC (X) vs δ¹³C (Y), axes labels “TOC (%)” and “δ¹³C (‰ VPDB)”. 4. PAAS normalized REE patterns For each sample, in a new column calculate normalized value for each REE: = (REE_conc / PAAS_REE_value). Select all normalized columns (rows = samples, columns = REE elements). Insert → Scatter with Straight Lines and Markers (line + symbol). X‑axis: REE elements in order (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu). Y‑axis: normalized ratio (often logarithmic scale – set axis scale to “Logarithmic”). Label axes: “La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu” and “Sample / PAAS”. Output All figures were directly exported from Excel as PNG/TIFF files (specified resolution: 300 dpi).
Institutions
- China University of GeosciencesHubei, Wuhan