. Geology of the Narragansett basin. Geology. RHODE ISLAJSTD COAL MEASURES. 183 In succession and sediments it strongly resembles the beds which appear in East Providence and Seekonk in the middle portion of the coal-bearing series. The following is a more explicit account of the supposed faults which form the block: Blake Hill thrust plane —If a liue bc drawu parallel with the Walpole and Wrentham Railroad tracks at Plainville Station and a little west of the roadbed, it will follow closely the boundary between the nearly horizontal strata of the Blake Hill block on the west and the vertical
. Geology of the Narragansett basin. Geology. RHODE ISLAJSTD COAL MEASURES. 183 In succession and sediments it strongly resembles the beds which appear in East Providence and Seekonk in the middle portion of the coal-bearing series. The following is a more explicit account of the supposed faults which form the block: Blake Hill thrust plane —If a liue bc drawu parallel with the Walpole and Wrentham Railroad tracks at Plainville Station and a little west of the roadbed, it will follow closely the boundary between the nearly horizontal strata of the Blake Hill block on the west and the vertical strata of the country on the east (see PL XV), at the extreme western end of the Mans- field syncline. Opposite the Plainville Station this boundary line turns westward in the form of a small loop, inclosing several outcrops of the nearly vertical slaty strata which extend into the area of horizontal beds at the base of the Blake Hill block. It is evident from an inspection of the relations of these two sets of rocks, so sharply contrasted as regards attitude and secondary sti'uctures, that the vertical series passes westwardly beneath B/oAe^/////. 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
