measured	value	unit
[SiO₂]	59.9	%
[TiO₂]	0.8	%
[Al₂O₃]	17.4	%
[Fe₂O₃]	7.5	%
[MnO]	0.2	%
[MgO]	3.2	%
[CaO]	6.6	%
[Na₂O]	3.5	%
[K₂O]	1.3	%
[P₂O₅]	0.2	%
[LOI]	0.1	%
total	100.7	%
[Cr]	39.8	ppm
[Ni]	27.1	ppm

tables:

Table 1: Major elements, trace elements and isotopic compositions from SW Colombian volcanic arc of Marin-Ceron, M. I. (2010) Slab decarbonation and CO₂ recycling in the Southwestern Colombian volcanic arc, Geochim. Cosmochim. Acta, 74, 1104-1121. more