 | | Report (volume) | | UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1972 UNITED STATES DEPARTMENT OF THE INTERIOR...of Documents, U.S. Government Printing Office, Washington, D.c. 20402- Price $4.50 (paper cover) Stock...with low-amplitude flexural-slip folding, Greene County, southwest Pennsylvania, by J. B. Roen Significance...Page Dl 25 29 Paleontology Early Ordovician North Atlantic province conodonts in eastern Pennsylvania...within the Frontier Formation, northwestern Carbon County, Wyo., by E. A. Merewether and W. A. Cobban Elemental |  | | Report (issue) | | UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1972 UNITED STATES DEPARTMENT OF THE INTERIOR...of Documents, U.S. Government Printing Office, Washington, D.c. 20402- Price $4.50 (paper cover) Stock...with low-amplitude flexural-slip folding, Greene County, southwest Pennsylvania, by J. B. Roen Significance...Page Dl 25 29 Paleontology Early Ordovician North Atlantic province conodonts in eastern Pennsylvania...within the Frontier Formation, northwestern Carbon County, Wyo., by E. A. Merewether and W. A. Cobban Elemental |  | | Report (issue) | | were the U.S. Geological Survey’s “Coal map of North America” (in press; a simplified version is on the...Coast region (some isolated basins in Virginia, North Carolina, and South Carolina), and the New England...entered the basin from the east, northeast, and north and was deposited in a coastal-plain paleoenvironment...is in southeastern Massachusetts and eastern Rhode Island and structurally is one of the most complex...tectonically thickened. Some of the coal at Portsmouth, Rhode Island, was used to smelt copper imported from Cuba |  | | Report (issue) | | plate tectonic theory began to noticeably permeate North American geologi¬ cal thought regarding the significance...equivalent rocks along the eastern seaboard of North America and elsewhere are considered to be part...landmass suggested to have become appended to the North American craton sometimes in the early to mid-Paleozoic;...eastern North America, then implic¬ itly presumed to be autochthonous with respect to the North American...Paleozoic-aged crust that ultimately accreted to North America, undergoing deformation co-eval with and |
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