Trace metals count! Distribution of dissolved iron in the Atlantic Ocean. Warm colours indicate high concentrations.Image generated with the eGEOTRACES Atlas. Click on the image to access the Atlas. Want to learn more? Factsheets about key trace elements are available: Factsheet #1: Iron Factsheet #2: Lead Factsheet #3: Mercury Factsheet #4: Cadmium Factsheet #5: Zinc Factsheet #6: Cobalt Factsheet #7: Manganese Factsheet #8: Nickel Factsheet #9: Neodymium Factsheet #10: Thorium Factsheet #11: Protactinium Factsheet #12: Radium