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Table 1 Element mass changes in BPS

From: Fluid-metapelite interaction in an ultramafic mélange: implications for mass transfer along the slab-mantle interface in subduction zones

  Outcrop
1 2
  Sample NK14 Sample NK24
  (g/100 g of protolith) (% change) (g/100 g of protolith) (% change)
SiO2 −11 ± 2 −15 −16 ± 2 −23
Fe2O3a +0.4 ± 0.5 +14.9 −1.9 ± 0.4 −40.0
MnO −0.00 ± 0.02 −11.87 −0.06 ± 0.01 −62.60
MgO +0.4 ± 0.2 +32.9 +1.4 ± 0.5 +56.6
CaO +0.27 ± 0.08 +51.44 +0.01 ± 0.07 +2.25
Na2O +0.1 ± 0.4 +34.4 +4.5 ± 0.4 +203.7
K2O −0.6 ± 0.3 −23.2 −3.1 ± 0.2 −93.4
H2O −0.16 ± 0.31 18.75 −0.7 ± 0.5 −25.1
C −0.16 ± 0.07 −94.78 −0.44 ± 0.03 −95.70
  (μg/g of protolith) (% change) (μg/g of protolith) (% change)
V +11 ± 13 +15 −19 ± 6 −19
Cr +28 ± 6 +48 −15 ± 28 −18
Ni +21 ± 6 +109 +30 ± 28 +96
Cu +29 ± 8 +161 +12 ± 7 +59
Zn +2 ± 12 +5 −47 ± 10 −61
Rb −45 ± 14 −47 −98 ± 9 −95
Sr +32 ± 11 +46 −2 ± 12 −4
Ba −92 ± 52 −21 −453 ± 36 −91
Pb −7 ± 3 −7 −9 ± 3 −55
  1. aTotal iron as Fe2O3.