Skip to main content

Table 11 Definition of the ERV and calculation of the EBC of the orthogneiss (ZR19)

From: Blueschist mylonitic zones accommodating syn-subduction exhumation of deeply buried continental crust: the example of the Rocca Canavese Thrust Sheets Unit (Sesia–Lanzo Zone, Italian Western Alps)

Microdomain Image Analysis Results            
Mineral Pixels %            
Wm 69,267 27.78            
Grt 5685 2.28            
Cpx 55,404 22.22            
Qtz 78,543 31.50            
Kfs 37,002 14.84            
Ttn 4098 1.38            
Total 250,000 100.00            
Maps resolution 250,000 100.00            
Mineral average composition New Modal  % Na2O TiO2 MnO K2O MgO SiO2 Fe2O3 FeO CaO Al2O3 H2O Total
Wm 27.78 0.04 0.06 0.17 10.48 3.00 52.04 0.00 3.43 0.05 26.46 4.27 100.00
Grt 2.28 0.03 0.34 1.91 0.03 0.01 39.01 5.17 0.79 34.10 18.66 0.00 100.05
Cpx 22.22 14.50 0.03 0.03 0.02 0.43 58.86 2.99 1.13 0.77 21.97 0.00 100.71
Qtz 31.50 0.00 0.00 0.00 0.00 0.00 100.00 0.00 0.00 0.00 0.00 0.00 100.00
Kfs 14.84 0.38 0.02 0.01 16.25 0.01 65.32 0.00 0.07 0.01 19.04 0.00 101.11
Ttn 1.38 0.04 33.33 0.00 0.07 0.04 31.28 0.00 1.93 27.87 3.95 0.00 98.51
EBC 100.00 3.29 0.50 0.10 5.33 0.93 70.05 0.78 1.26 1.35 15.54 1.19 100.30
EBC normalized with no H2O 100.00 3.32 0.50 0.10 5.37 0.94 70.67 0.79 1.27 1.36 15.68 0.00 100.00