SIERRA DE 

 LOS VALLE5 



Kma ^ Jt_Jg > 



SIERRA NACIMIENTO 



Cm_9 Cmq. 



^^fy^W^^^^^'PfSf'Mjf'"'^''c^^_ 



Cmg> 



SSPANOLA VALLEY 

 IS 



MESA CMIVATO 



Quaternary hosa/t 



Mesa Verde fm 



Mane OS sh. 



Dakota J3. 



-r^ 



pre- Dakota fms. 



T^ V / " V Jl] P\ continued 



I below 



iT> 



(,o\o 



CEJA DEL P1I0 PUERCO 



SIERRA LADRON 



Fig. 25.13. H, section across the northern Sierra Nacimiento. After Renick, 1931. 



I, section across the southern Sierra Nacimiento. After Renick, 1931. Cmg, 

 Magdalena group; Ca, Abo sandstone; Cc, Chupadera formation; Teh, Chinle 

 formation; Jw, Wingate sandstone; Jt, Todilto format/on; Kms, Morrison formation; 

 Kd, Dakota sandstone; Km, Mancos shale; Kmv, Mesa Verde formation; Qv, Qauter- 

 nary volcanoes of the Sierra de los Valles. 



J, section across Espanola Valley. After Denny, 1940b. Ts, Santa Fe formation. 



K, section from Mesa Chivato to Ceia del Rio Puerco. B, Boundary between 

 Colorado Plateau and Basin and Range provinces. After Bryan and McCann, 1938. 



M, section across the Lucero uplift. After Kelley and Wood, 1946. Cs, Sandra 

 formation; Cml, Gray Mesa member; Cma, Atrasado member; Cmr, Red Tanks 

 member of the Madera limestone; Pa, Abo formation; Pym, Meseta Blanca member; 

 Pyl, Los Vallos member of Yeso formation; Psg, Pse, Psl, members of San Andres 

 formation. C is Pennsylvanian, P is Permian. Ti, Tertiary intrusives; Tv, Tertiary 

 extrusives; Tv, Tertiary agglomerate; Ts, Miocene Santa Fe formation. 



N, section through Sierra Ladron and the southern end of the Sucero uplift, here 

 a structural basin. After Kelley and Wood, 1946. Cs, Sandra formation; Cml, Gray 

 Mesa member; Cma, Atrasado member; Cmr, Red Tanks member of the Madera 

 Limestone; Pa, Abo formation; Pym, Meseta Blanca member; Pyl, Los Vallos member 

 of Yeso formation, P is Permian. Ti, Tertiary intrusives; Tv, Tertiary agglomerate; 

 Ts, Miocene Santa Fe formation. 



O, section of the San Acacia area. Tv, Tertiary volcanic flows and tuffs; Tp, 

 Popotosa formation; Ts, Santa Fe formation. After Denny, 1940a. 



SCALE IN MILtS 



