Appendix B - Tmrcan Mineral compositions from electron microprobe analyses

Appendix B. Tmr_canMineral compositions from electron microprobe analyses

Unit	Mineral	Chemical composition
Tmrcan	oligoclase	Ab₆₉An₂₂Or₉
Tmrcan	oligoclase	Ab₇₁An₂₀Or₉
Tmrcan	magnetite	(Fe²⁺_1.25Mg_0.04Fe³⁺_1.26Al_0.16Ti_0.29)O₄
Tmrcan	ilmenite	(Mn_0.01Fe²⁺_0.68Mg_0.03Fe³⁺_0.55Ti_0.73)O₃
Tmrcan	augite	(Na_0.02Ca_0.87Fe²⁺_0.19Mg_0.85Fe³⁺_0.01Ti_0.01)(Al_0.10Si_1.94)O₆
Tmrcan	augite	(Na_0.01Ca_0.84Fe²⁺_0.24Mg_0.88Fe³⁺_0.00Ti_0.01)(Al_0.04Si_1.98)O₆
Tmrcan	bronzite	(Fe²⁺_0.19Mg_0.81)SiO₃
^xTmrcan	labradorite	Ab₃₃An₆₇
^xTmrcan	labradorite	Ab₃₁An₆₉
^xTmrcan	bronzite	(Fe²⁺_0.24Mg_0.76)SiO₃
^xTmrcan	bronzite	(Fe²⁺_0.23Mg_0.77)SiO₃

Superscripts before unit names (e.g., ²Tmrsiw) indicate different rock samples of same lithologic unit; superscript ^x indicates xenolith within rock sample.