THE OLDER xMESOZOIC OF ARIZONA. 



45 



"White sandstones. 



Krown sunilstdn* 



Vurifgrfttt'il siiMitstoiifs. iv^ruliiily stratitlcil 

 jiiul tirilliuntly colored, witli niinieroii^ 

 liiifi. pif^fiitiiitr » strikintr und heuiitifnl 

 lmtidf<l ii[i|ifiiinnf<-. and I\>rMiintj tlif wt-ll- 

 kiiowu I'aiutfd Cliffs. 



' Red-orantre smidstones. 



Calcareous marls, sometimes wo 

 white, blue, or purple buttes. 



Mortar beds with impure flintstones. 



Limestone ledpe, definitely stratified. 



Sandstone led^re %vith black'logrs; looal. 



Variet^jited marl>. chiefiy urnilliu-coiis hut 

 somewhat cnlrareotis, often worn into 

 small buttes studdinji the jjlaiiis; white, 

 blue, pink, or red, and beautifully handed, 

 holding bones of belodonts and dinosaurs. 



CouKlomerates and cross-bedded coarse 

 sandstones. r)fteii with pink and white 

 Striped ehiy lenses, interstratilied with 

 gray aririlliieeoiis shales and \ariei^atcd 

 marls, the latter locally much thickened, 

 tormiiiK brilliantly colored banded cliffs. 



Dark chocolate-brown arjrillaceous shales, 

 devoid of jrrit and highly charged with 5 

 salt and trypsum. .Saliferous beds. 



Dark-brown, soft, argillaceous sandstones. i 



Arprillaceous, dark-hrown shales, highly sa- 

 liferous and with gypsnm layers, becom- 

 ing: calcareous below. 





O j_ 0_l_0 ;_0 ' O J_0 



■^^59^1"^ 



I'jiint.-d De-tt-rt 

 formation. 



Leronx nieniher. 



Lithodendron 



Mocncopie formation. 



Calcareous shales, mostly white. 



Saliferous shales as in Nos. 3 and 5 



Limestones lerinoidah 

 conformable. 



)r sandstones. Vn- 



FiG. 8. — Geological column of the Older Mesozoic of Arizona. 



