Part 1 - Download the data

If you prefer a printout of these instructions, choose Print from the File menu.

• Go to the NAVDAT database and click on the "Database" link.
• SET the following constraints for your query:
• Age: 0-5 Ma
• Chemistry: 0 < SiO₂ < 55 wt.% (this will limit the search to mafic rocks)
• Click on "GO TO DATA"
• Select "Isotopes" and then "Create Excel File"