ILLUSTRATIONS Vll 



Figures 

 Sakdeson : Page 



Figure 1— Map showing distribution of the Galena and Trenton forma- 

 tions 180 



" 2— Diagrammatic section of the Galena series 191 



Lee : 



Figure 1 — Contour map and cross-section of Kilburn crater 214 



Fuller : 



Figure 1 — Conditions of thermal circulation (Crosby and Crosby) 225 



" 2 — Diagram showing supposed conditions of circulation at the 



sea mills of Cephalonia 228 



" 3 — Conditions of head in circulation system with fresh, salt, and 



mixed columns 228 



Purdue : 



Figure 1 — Unconformity at the top of the Everton limestone 252 



" 2 — Pocket of Saint Peter sandstone covered with Sylamore sand- 

 stone 253 



Emmons : 



Figure 1 — Cross-section of the Uinta mountains along east wall of Du- 

 chesne canyon 294 



" 2— Geological sketch map of Duchesne Canyon region, western 



Uinta mountains 296 



Johnson : 



Figure 1 — Sketch map of the Mount Taylor region 307 



" 2 — Ideal cross-section, northeast-southwest, through mount Tay- 

 lor, Mount Taylor mesa, Puerco valley, and Prieta mesa. . . 309 



" 3 — Cabezon, showing exposure of surrounding horizontal sedi- 

 ments 310 



" 4 — Turn peak, showing horizontal sediments well up sides of 



butte 312 



" 5 — Butte number 4, showing horizontal sediments surrounding 



igneous core, with vertical contact exposed on south side. . 313 



" 6 — Diagrammatic sketch to show relation of surrounding hori- 

 zontal sediments to igneous core of butte number 5 and the 

 complex structure of the core 314 



" 7 — Cross-section showing relation of horizontal sediments to 



igneous core of butte number 5, western side 315 



" 8 — Cerro-Cochino, showing igneous core rising above surround- 

 ing horizontal sediments 315 



" 9 — Cross-section showing contact of horizontal sediments with 



igneous core of butte number 8 316 



" 10— Diagram showing relation of butte number 14 to surround- 

 ing sediments (shales capped by sandstone) and to other 



buttes in the region. 317 



Paige and Knopf : 



Figure 1 —Geologic map of region northeast of Cook inlet, Alaska 327 



Jefferson : 



Figure 1 — Scaur on the right bank of the lower Rouge. 334 



" 2 — Rivers described in this paper 336 



" 3— Flood-plain, meanders, and scaurs on the lower Rouge 337 



4— The middle Rouge 339 



