Page 19 - Geologic Investigations in the Lake Valley Area, Sierra County, New Mexico

Trp
Figure 4. Central part of vent breccia of Sugarlump Tuff on O Bar O Peak, west of Berrenda Mountain. Large clasts in breccia are Rubio Peak Formation (Trp) as much as 1 m across. Height of outcrop about 25 m. View to north.
McClede Mountain
Tmr
Tmt-welded
Tmt-unwelded Tls
Tls
Megabreccia landslide and Mimbres Peak Formation, north side of McClede Mountain. Megabreccia (Tls) displays hummocky topography of exhumed paleo-landslide surface. Megabreccia is overlain by gently east dipping tuff of Mimbres Peak Formation (Tmt), here consisting of lower, unwelded part and upper, welded part. Rhyolite flows of Mimbres Peak Formation (Tmr) overlie tuff.
Figure 5.
10 Geologic Investigations in the Lake Valley Area, Sierra County, New Mexico