Figure 4
From: Occurrence and characterization of tremolite asbestos from the Mid Atlantic Ridge
Comparison between the composition of the major elements of SMA1971-214 tremolite asbestos and that of tremolite amphiboles from oceanic and continental tectonic environments. (a) Al2O2 (wt%) versus SiO2 (wt%). (b) FeO (wt%) versus SiO2 (wt%). (c) MgO (wt%) versus SiO2 (wt%). (d) Na2O (wt%) versus SiO2 (wt%). (e) Na2O (wt%) versus Al2O3 (wt%). (f) Al/(Al + Si) in T site (a.p.f.u.) versus Al/(Al + Mg + Fe) in C site (a.p.f.u.). ± 1 σ compositional variability of tremolite SMA1971-214 is within the symbol area. See Supplementary Information for references.
