Bulletin, Denison University. Vol. XI, Art. IV, 1898. 
PLATE XI. 
Herrick— G eology ’of New Mexico. 
Fig. /. Pdllisade mountain from the northwest showing recent strata at 3. 
The foreground (4) is a granite hill over which the Blue Canon road passes. 
Fig. 2. I. Talus conglomerate. 2. Basic eruptive. 3. Magdalena Moun- 
tains in distance. 
3 - Panoramic view of the Socorro Mountains from the east, from a 
series of photographs, as seen from the city of Socorro. The numbers are 
placed with reference to sources of the rocks examined and will be referred to 
in the section on petrography, i. Strawberry Peak ; 2. Socorro Peak, between 
this and i, Nogal Canon; 3. Promontory Peak; 4. Sharp Peak, north of which 
a dyke cuts off ihe limestone seen at 22 ; Similar small peak near which gold 
discovery has been made ; 6. Western granitic part of main range; 7. The upper 
and western of two flows of quartz trachyte flowing over andesite at 27 ; 8. 
Western wall of the old crater about one mile west of 7; 9. Hill forming south- 
ern wall of Blue Canon, the lower part of andesite, upper of trachyte and rhyo- 
lite; 10 to 13. Various trachyte, rhyolite and breccia flows ; 14. Pallisade Moun- 
tain; 15 to 19. Hills of stratified gravel and sand covered with a thin flow of re- 
cent basait; 20. Flow of trachytic rock over the limestone; 21. Quartzite at base 
of limestone ; 22. Carboniferous limestone, about 400 feet thick ; 24 to 26. An- 
desite beneath, .Merritt and other mines; 27. Be Is of k v olin from decomposition 
of andesite and trachyte ; 25. Blue Canon; 30. Rio Grand smelter ; 31. Spring; 
32. Spring and mill ; 33. Ranch ; 34. Clay. 
Fig, 5. Ideal Section through the axis of uplift south of Limitar mountain. 
I. Trachyte crater; 2. Laminated inirgin of trachyte; 3. Porphyry about the 
mirgins; 4. I! -ecciated contact zone ; 5. Massive limestone ; 6. Shale with Pro- 
(IncUucora; 7 lartzite (2 1 feet) ; 8 Shaly li mestone withSpiiifer cvnerata; 
9. (,)uartzite pissing into the next ; 10 .Mica and hirnbleiide schist with quart- 
zite^bands and phases ; 11. Granite ;■ 13. Diorite, intrusive (paramorphic) ; 14 
Talus conglomerate in or near the crater. 
