. Geology of the Narragansett basin. Geology. conglomerate dipping 70^ N. About 60 feet of beds are exposed, showing alternations with sandstone and slate. The pebbles of the conglomerate are granitite, qnartzite, and quartz, and range up to 5 inches in diameter. This bed occupies a stratigraphic position on the north side of the Perrins anticline roughly corresponding to that of the Seekonk conglomerate on the south side of the axis, and raises the question whether the Seekonk ^^_^^^__^^_^___^_^___^ conglomerate is the coarse con- ilSiliiiilll^^ glomerate elsewhere found at the base of the Di
. Geology of the Narragansett basin. Geology. conglomerate dipping 70^ N. About 60 feet of beds are exposed, showing alternations with sandstone and slate. The pebbles of the conglomerate are granitite, qnartzite, and quartz, and range up to 5 inches in diameter. This bed occupies a stratigraphic position on the north side of the Perrins anticline roughly corresponding to that of the Seekonk conglomerate on the south side of the axis, and raises the question whether the Seekonk ^^_^^^__^^_^___^_^___^ conglomerate is the coarse con- ilSiliiiilll^^ glomerate elsewhere found at the base of the Dighton group or a lower conglomerate com- prised within the Seekonk beds proper. Westward and east- ward for many miles no rocks are exposed along this northern sxriive ime. Somewhat higher up in the section, and over a mile north- east of the last-named outcrop, there are exposed, along the at south-southwest of Attleboro station, about 40 feet of coarse, gray, gritty, and often con- glomeratic sandstones exhibit- ing cross bedding and marked local or contemporaneous ero- \Ftg, 24.—-Cont^miwrap^otia erosion, withuBOonformity, in the Car- sioU. A bcd of fiuC SaudstOUe bonifei*oi3^ at Atttelwro, Massachusetts. The pebbles shown in fcl^«npper,^«n>of *ha diagram are identical with the red slate in 20 fect thick WaS CXCavatcd, fche lower p»t. eyidently by a river, to the nn-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Shaler, Nathaniel Southgate, 1841-1906; Woodworth, Jay Backus, 1865-1925; Foerste, Aug. F. (Aug. Frederic), 1862-1936. Washington, Govt. Print. Off.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectgeology
