C1 chondrite (2012)

Barrat et al. (2012)

CI chondrite  (1989)

Sun & McDonough (1989)

CI chondrite (1995)

McDonough & Sun (1995)

Cl

Palme & O’Neill (2014)

P mantle

Sun & McDonough (1989)

Pyrolite

McDonough & Sun (1995)

Earth’s mantle

Palme & O’Neill (2014)

Depleted MORB mantle

Workman & Hart (2005)

Enriched MORB mantle

Workman & Hart (2005)

MORB mantle

Workman & Hart (2005)

D-MORB

Gale et al. (2013)

N-MORB (2013)

Gale et al. (2013)

N-MORB (2001)

Stern (2001)

N-MORB (1989)

Sun & McDonough (1989)

E-MORB (2013)

Gale et al. (2013)

E-MORB (1989)

Sun & McDonough (1989)

All MORB

Gale et al. (2013)

OIB

Sun & McDonough (1989)

Global subducting sediment

Stern (2001)

Boninite

Stern (2001)

BABB (2013)

Gale et al. (2013)

BABB (2001)

Stern (2001)

Arc-Tholeiite

Stern (2001)

Andean Dacite

Stern (2001)

Continental Crust

Stern (2001)

Upper Crust

Rudnik & Gao (2003)

Middle Crust

Rudnick & Gao (2003)

Lower Crust

Rudnick & Fountain (1995)

Bulk Crust

Rudnick & Gao (2014)