6 A GEOLOGICAL RECONNAISSANCE OF THE DOMINICAN REPUBLIC. 



PAGE. 



Chapter VII. Geology and water resources of the vicinity of Monte Cristi, 

 by Clyde P. Ross — Continued. 

 Water resources — Continued. 



Underground water supply 177 



Possibility of obtaining ground water 177 



Possibility of obtaining artesian water 178 



Conclusions and recommendations 179 



Chapter VIII. Geology of the Province of Samana, by Clyde P. Ross 181 



Topography - 181 



Samana Peninsula 181 



South shore of Samana Bay 182 



Geology 182 



Basal complex 182 



Early Tertiary limestone conglomerate 183 



Oligocene or Miocene limestone 183 



Miocene or Pliocene clay, sand, and conglomerate 184 



Pleistocene or Recent terraces and coral reefs 184 



Recent deposits 185 



Economic geology - 185 



Chapter IX. Geology of the provinces of Barahona and Azua, by D. Dale Condit 



and Clyde P. Ross 186 



Area examined 186 



Geography 186 



Land forms 187 



Province of Barahona 187 



Province of Azua 188 



Drainage 189 



Rivers 189 



Lakes 189 



Springs 192 



Chemical composition of spring water 193 



Towns and villages 194 



Routes of travel 196 



Climate and vegetation 197 



Products 198 



Geology 199 



Stratigraphy 199 



Pre-Tertiary rocks 199 



Tertiary sedimentary rocks 199 



Eocene 199 



Oligocene 200 



Miocene.... 201 



Yaque group 201 



Cerros de Sal formation 201 



Pliocene 201 



Las Matas formation 201 



Quaternary sediments 202 



"Coast limestone" 202 



Alluvial deposits 202 



