T. N. Dale—Geology of Rhode Island. 219 
those bodies of land; politically the entire township of New- 
rt and parts of Jamestown and North and South Kingstown. 
€ two papers, together, thus describe a belt across the lands 
which border and divide the mouth of Narraganset Bay, and 
afford an entire section across the southern extremity of the 
New England Carboniferous Basin. 
Newport Neck has been pretty fully described * and Jack- 
Sons map covers the entire tract. The highly metamorphic 
character of the rocks of the region, as well as their complex 
“Stratigraphical relations, and the fact that half the area is under 
Water must account for the lack of clearness as well as the con- 
tradictions in some of the conclusions of the geologists who 
have studied it. Thus, Dr. Jackson regarded the granite of 
Newport Neck and Conanicut as intrusive and as having in 
d argillyte of Carboniferous age. The part west of a 
line running south from Brenton’s Cove he calls Carboniferous, 
4s he does the dolomite of Fort Adams, and “ The Lime Rocks,” 
and the various schists of ‘The Cliffs.” But Professor C. H. 
Coal-meas bu ) 
glomerate of Coaster’s Harbor Island and Miantonomah Hill. 
*tofessor Shaler calls the siliceous argillytes of the neck “ Pri- 
7, * Chas, Jackson, Geol. Survey, R. [., 1840, pages 40, 89-92. Ed. oe 
Sey pee My a | 552, Oh. H. Hitchcock, Geol. of 
teen of Aquidneck, Proceedings American Association Advancement Science, 
‘Aquige 88 119, 121-126, 129-133, 136-7. N. 8. Shaler, Geol. of Island of 
7 neck, etc, American Naturalist, vol. vi, 1872, pages 524-5, 616, 619, 752. 
Soc, Nat. Hist., vol. xiv, 1869. For full 
re ‘unt, Proceedings . 
| cag and bibliography of R. I. Geology see first paper. 
