QA CONTENTS. 



Pag©* 



Chapter V.— The Carboniferous strata |^^ 



Determmation of horizons within the hasin ^^^ 



Means of determining superposition ^^ 



Tabular view of the strata in the Narragansett Basin • 1^* 



Formations below the Coal Measures 135 



Pondyille group ---- -^^^ 



Basal arkose beds - ■^^^ 



Foolish Hill exposures ^^^ 



North Attleboro exposures 1^^ 



Pierces Pasture in Pondville, Norfolk County Basin • 135 



Absence of basal granitic conglomerates 136 



Geographical conditions indicated by the basal arkose 137 



Absence of iron oxides in the basal aikose 138 



Absence of carbonaceous ihatter along northern margin 139 



Extent of arkose zone - ^^^ 



Suprabasal conglomerates -- 1^^ 



Millers Eiver conglomerate - 14=0 



South Attleboro exposure - 14=0 



Jenks Park exposure in Pawtucket - 141 



Wamsutta group - ^^^ 



Bedrock areas ..,- 1^^ 



Area along the northern border 14=3 



Gray sandstones of the northern border 14=4 



North Attleboro area - - - 145 



Conglomerates 146 



Sandstones - 147 



Shales ^47 



Central Falls area 147 



Pawtucket area 148 



Red beds m Attleboro^ Rehoboth, andNorton 148 



Norfolk County area 148 



South Attleboro limestone bed - 149 



Attleboro sandstone - 151 



Igneous associates of the Wamsutta group 152 



Diabase.---- - lo2 



Quartz-porphry group 153 



Diamond Hill quartz mass 155 



Wamsutta volcanoes 155 



Folding of the Wamsutta group 156 



Flora of the Wamsutta group 158 



Coal Measures - - 159 



Craaston beds - 159 



Providence area.--- 159 



Pawtucket shales -- 162 



Sockanosset sandstones - - 163 



East Side area in Providence .- 163 



Tenmile Biver beds - , 164 



Lebanon Mills exposure - - .-. 164 



iktst Providence area 164 



Leonards Corner quarries 165 



Section from Watohemooket Cove to Riverside 165 



Halsey Farm section at Silver Spring *.^-.*, 166 



Exposures in Seekonk .,.- *. 168 



Hunts Mills section.-.- 169 



Perrins anticline.. ,. 169 



Bored well near Lebanon Mills , 170 



