Appendix B.  Tmdtomb Mineral compositions from electron microprobe analyses
Unit Mineral Chemical composition
1Tmdtomb andesine Ab64An33Or3
1Tmdtomb andesine Ab63An35Or2
1Tmdtomb andesine Ab59An39Or2
2Tmdtomb andesine Ab49An49Or2
2Tmdtomb andesine Ab56An41Or3
2Tmdtomb andesine Ab51An47Or2
2Tmdtomb amphibole hornblende
2Tmdtomb amphibole hornblende
2Tmdtomb cummingtonite (Mg0.52Fe2+0.48)7Si8O22(OH)2
2Tmdtomb andesine Ab60An37Or3
3Tmdtomb andesine Ab63An34Or3
3Tmdtomb andesine Ab56An41Or3
4Tmdtomb andesine Ab58An39Or3
4Tmdtomb andesine Ab57An41Or2
4Tmdtomb andesine Ab56An41Or3
5Tmdtomb andesine Ab63An35Or2
5Tmdtomb andesine Ab59An39Or2
5Tmdtomb andesine Ab58An40Or2
6Tmdtomb andesine Ab62An34Or4
6Tmdtomb andesine Ab63An33Or4
6Tmdtomb andesine Ab56An41Or3
6Tmdtomb andesine Ab55An37Or8
6Tmdtomb amphibole hornblende
6Tmdtomb amphibole hornblende
6Tmdtomb bronzite (Fe2+0.21Mg0.79)SiO3
7Tmdtomb labradorite Ab38An61Or1
7Tmdtomb labradorite Ab43An56Or1
7Tmdtomb labradorite Ab49An50Or1
7Tmdtomb amphibole hornblende
7Tmdtomb amphibole hornblende
7Tmdtomb amphibole hornblende
7Tmdtomb amphibole hornblende
7Tmdtomb grunerite (Fe2+0.71Mg0.29)7Si8O22(OH)2
7Tmdtomb augite (Na0.03Ca0.82Fe2+0.14Mg0.84Fe3+0.06Ti0.02)(Al0.23Si1.85)O6
7Tmdtomb hypersthene (Fe2+0.30Mg0.70)SiO3
7Tmdtomb hypersthene (Fe2+0.31Mg0.69)SiO3
Superscripts before unit names (e.g., 2Tmrsiw) indicate different rock samples of same lithologic unit; superscript x indicates xenolith within rock sample.