Tehrd_m
Termd
34 Ma rhy dike
Dewitt and others, 1999; 1:50,000
Tbrhd
18.3 Ma hi-silica bimodal rhyolite dike; Amax Mo target
Gaskill and others, 1991; 1:24:000
Tead
30-36 Ma andesite to dacite dike
Lipman, 1976; 1:48,000
TmiDd
dacite to granodiorite dikes, signif. assoc. minlz, assoc. with stocks
Gaskill and Godwin, 1966; 1:24,000
Gaskill and others, 1967; 1:24,000
Teqmd
Early? monzonite porph. dikes
Tpd
~31 Ma granodiorite to qtz monz. porph. dikes; generally unaltered
Mutschler, 1970; 1:24,000
32 Ma andesite dike
Burbank and Luedke, 1966; 1:24,000
bimodal high-silica rhyolite dike <18 Ma
30-35 Ma qtz monzonite volcanic center-dikes
Luedke, 1972; 1:24,000
0
Dikes West Elk Center
Andesitic dikes from West Elk Volcanic Center
Day and others, unpub. data; 1:250,000