445 Dominican Sections — Maury 29 



Section of Sabaneta Bluff 



Feet 



4. Superficial gravels. 



3. Light yellow, soft material with thin beds of harder rock pro- 

 jecting as small shelves 25 



2. Gravels composed largely of small, angular quartz fragments 

 mingled also with those of crystalline rocks. On making a 

 fresh cut the gravels were found to alternate with thin layers 

 of pure clay and lignite seams. At the base of the gravels 

 is a heavy blue clay mixed with much fine quartz. 50 



1. Greenish-blue clay, quite hard, slopes convex. No fossils. 



Exposed 10 



The only fossils found were two valves of Scapharca patricia 

 and one of S. auriculata but they were lying loose on top of 3. 

 Their origin is unknown. 



Tentative correlation of the Sabaneta beds. — Judging from the 

 prevailing northern dip, calculated as noted at Los Quemados, 

 the general line of strike is N. E. and S. W. and the Sabaneta 

 section wouid lie approximately along the line of strike of the 

 Caimito and Los Quemados sections to the northeast. Thus 

 probably the alternating clays, gravels and lignitic seams of 

 Sabaneta are to be correlated with the gravels, clays and lignitic 

 sands of Zones H and I. Possibly the upper bed at Sabaneta 

 represents the Area patricia horizon of the Cana but this is very 

 doubtful. 



Gabb's Sabaneta Section ' 



In 1873 Gabb published* a section obtained near Sabaneta, 

 where the road crosses the Yaguajal, which he correlated with ex- 

 posures elsewhere and used in his ideal section of the Santo Do- 

 mingo ."Miocene" formation, page 95 loc. cit. His conclusions 

 may be indicated briefly as follows : 



Correlation Sabaneta Feet 



Gravels of 



the Mao. Gravels. 20 



Yellow Yellow sandy clay shales. 12 



*Trans. Amer. Philosophical Soc, vol. 15, p. 154. 



