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BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



SCHUCHERT : 



FifiTure 



LOXGWELL : 



Fissure 



HOBBS 



Figure 



Mansfield : 

 Fisriiiv 



Lee 



Figure 



Hopkins : 



Figure 



Page 



IT — Great Kocky Mountain and narrow Pacific geosyuclines 

 and Gulf of Mexico overlap of late Cretaceous (Pierre) 

 time 229 



18 — World chart showing geosynclines and hj-pothetic conti- 

 nents during Mesozoic time 1!)4 



1 — Schema der Gliederung des alpiueu Orogen 233 



2 — Blockdiagramm eines normalen (erweiterten) Orogen.. 234 



3 — Schema des Deckenbaues der Ostalpen und Dinariden.. 235 

 4 — Blockdiagramm eines mit einen Vorlande einseitig ver- 



senkten Orogen 236 



5 — Blockdiagramm eines normalen versenkten Orogen. des- 



sen vorlande z. T. stehen gebliebeu ist 237 



6 — Blockdiagramm des japauischen Orogen 237 



7 — Blockdiagramm eines samt dem Vorlande versenkten 



Orogen 238 



S — Schema des Graben-Horsttypus 240 



9 — Schema eines gebirges mit massendefekt 241 



1 — Contrasted maps and sections of the Asiatic continent . . 248 

 2 — Characters of the islands composing the Marianne Arc. 250 

 3 — Comparison of the different sections of the Marianne Arc 251 



1 — Distribution of the known great overthrusts in the 



northern Rocky Mountains 267 



2A — Attempted restoration of structure in the Rocky Moun- 

 tains of southeastern Idaho 274 



2B- — northeastern continuation of the section shown in fig- 

 ure 2A, M'ith the Caribou Range at the right 275 



1 — Relation of the interior Cretaceous Basin to the ances- 

 tral Rocky Mountains, the Nevada continent, and the 



present Rockies 287 



2 — Diagram illustrating deformation of isogeothermal 



planes and their relation to erosion 298 



3 — Relation of isogeotherms to a sinking earth block 294 



4 — Diagram illustrating the relation of erosion to the rise 



of a mountain block 296 



5 — Flow of heat in dike and adjacent rocks 301 



6 — Readjustment of solid material under strain 303 



1 — Deep wells of east-central Alberta, western Saskatch- 

 ewan 420 



2— General view of Tit Hills 421 



3 — Sketch map showing geologic structure of Mud Buttes. . 422 



4— View of Mud Buttes from the southeast 423 



5— Near view of part of Mud Buttes 423 



