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Element

Element Abundances in the Bulk Earth

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Iron

   32.0%     

Oxygen

   29.7%     

Silicon

   16.1%     

Magnesium

   15.4%     

Nickel

18200 ppm    

Calcium

    1.71%    

Aluminum

    1.59%    

Sulfur

 6350 ppm    

Chromium

 4700 ppm    

Sodium

    0.18%    

Cobalt

  880 ppm    

Titanium

  810 ppm    

Manganese

  800 ppm    

Carbon

  730 ppm    

Phosphorus

  715 ppm    

Hydrogen

  260 ppm    

Potassium

  160 ppm    

Vanadium

  105 ppm    

Chlorine

   76 ppm    

Nitrogen

   25 ppm    

Strontium

   13 ppm    

Scandium

   10.9 ppm  

Fluorine

   10 ppm    

Zirconium

    7.1 ppm  

Germanium

    7 ppm    

Barium

    4.5 ppm  

Yttrium

    2.9 ppm  

Selenium

    2.7 ppm  

Platinum

    1.9 ppm  

Arsenic

    1.7 ppm  

Molybdenum

    1.7 ppm  

Ruthenium

    1.3 ppm  

Cerium

    1.13 ppm 

Lithium

    1.1 ppm  

Palladium

    1 ppm    

Osmium

    0.9 ppm  

Iridium

    0.9 ppm  

Neodymium

    0.84 ppm 

Dysprosium

    0.46 ppm 

Niobium

    0.44 ppm 

Lanthanum

    0.44 ppm 

Rubidium

    0.4 ppm  

Gadolinium

    0.37 ppm 

Bromine

    0.3 ppm  

Tellurium

    0.3 ppm  

Erbium

    0.30 ppm 

Ytterbium

    0.30 ppm 

Samarium

    0.27 ppm 

Tin

    0.25 ppm 

Rhodium

    0.24 ppm 

Lead

    0.23 ppm 

Boron

    0.2 ppm  

Hafnium

    0.19 ppm 

Praseodymium

    0.17 ppm 

Tungsten

    0.17 ppm 

Gold

    0.16 ppm 

Europium

    0.10 ppm 

Holmium

    0.10 ppm 

Cadmium

    0.08 ppm 

Rhenium

    0.075 ppm

Terbium

    0.067 ppm

Thorium

    0.055 ppm

Beryllium

    0.05 ppm 

Silver

    0.05 ppm 

Antimony

    0.05 ppm 

Iodine

    0.05 ppm 

Thulium

    0.046 ppm

Lutetium

    0.046 ppm

Cesium

    0.035 ppm

Tantalum

    0.025 ppm

Mercury

    0.02 ppm 

Uranium

    0.015 ppm

Thallium

    0.012 ppm

Bismuth

    0.01 ppm 

Indium

    0.007 ppm

Element

Abundances by Element Name in the Bulk Earth

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Aluminum

    1.59%    

Antimony

    0.05 ppm 

Arsenic

    1.7 ppm  

Barium

    4.5 ppm  

Beryllium

    0.05 ppm 

Bismuth

    0.01 ppm 

Boron

    0.2 ppm  

Bromine

    0.3 ppm  

Cadmium

    0.08 ppm 

Calcium

    1.71%    

Carbon

  730 ppm    

Cerium

    1.13 ppm 

Cesium

    0.035 ppm

Chlorine

   76 ppm    

Chromium

 4700 ppm    

Cobalt

  880 ppm    

Dysprosium

    0.46 ppm 

Erbium

    0.30 ppm 

Europium

    0.10 ppm 

Fluorine

   10 ppm    

Gadolinium

    0.37 ppm 

Germanium

    7 ppm    

Gold

    0.16 ppm 

Hafnium

    0.19 ppm 

Holmium

    0.10 ppm 

Hydrogen

  260 ppm    

Indium

    0.007 ppm

Iodine

    0.05 ppm 

Iridium

    0.9 ppm  

Iron

   32.0%     

Lanthanum

    0.44 ppm 

Lead

    0.23 ppm 

Lithium

    1.1 ppm  

Lutetium

    0.046 ppm

Magnesium

   15.4%     

Manganese

  800 ppm    

Mercury

    0.02 ppm 

Molybdenum

    1.7 ppm  

Neodymium

    0.84 ppm 

Nickel

18200 ppm    

Niobium

    0.44 ppm 

Nitrogen

   25 ppm    

Osmium

    0.9 ppm  

Oxygen

   29.7%     

Palladium

    1 ppm    

Phosphorus

  715 ppm    

Platinum

    1.9 ppm  

Potassium

  160 ppm    

Praseodymium

    0.17 ppm 

Rhenium

    0.075 ppm

Rhodium

    0.24 ppm 

Rubidium

    0.4 ppm  

Ruthenium

    1.3 ppm  

Samarium

    0.27 ppm 

Scandium

   10.9 ppm  

Selenium

    2.7 ppm  

Silicon

   16.1%     

Silver

    0.05 ppm 

Sodium

    0.18%    

Strontium

   13 ppm    

Sulfur

 6350 ppm    

Tantalum

    0.025 ppm

Tellurium

    0.3 ppm  

Terbium

    0.067 ppm

Thallium

    0.012 ppm

Thorium

    0.055 ppm

Thulium

    0.046 ppm

Tin

    0.25 ppm 

Titanium

  810 ppm    

Tungsten

    0.17 ppm 

Uranium

    0.015 ppm

Vanadium

  105 ppm    

Ytterbium

    0.30 ppm 

Yttrium

    2.9 ppm  

Zirconium

    7.1 ppm  

Reference    (Click the button next to a value above to see complete citation information for that entry)

McDonough, W. F. "Compositional Model for the Earth's Core." pp. 547–568 in The Mantle and Core. Edited by Richard W. Carlson. Oxford: Elsevier Ltd., 2005.