Tectonic synthesis of the U.S. Appalachians
Published:January 01, 1989
Robert D. Hatcher, Jr., 1989. "Tectonic synthesis of the U.S. Appalachians", The Appalachian-Ouachita Orogen in the United States, Robert D. Hatcher, Jr., William A. Thomas, George W. Viele
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The preceeding chapters in this book constitute syntheses of our knowledge of the tectonic history of the U.S. Appalachians following their inception as a rifted and passive margin after the Grenville orogeny to the present state of decay. The purpose of this chapter is to summarize the evidence for the major events of the Paleozoic and later history of the Appalachians, to bring to light similarities and differences between along-strike segments, and to explore aspects of Appalachian history from the perspective of the tectonic map (Plate 1) that may not have been brought out in the previous chapters. This, as all syntheses, represents only a progress report whose total complexion may change with the appearance of new data. Details of stratigraphy and structure were outlined in previous chapters.
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The Appalachian-Ouachita Orogen in the United States
Includes 14 chapters on the Appalachian orogen, 15 of the Ouachita orogen, and a chapter on the connection between them beneath the eastern Gulf Coastal Plain. The Appalachian chapters synthesize the geologic development of the orogen by tectonostratigraphic intervals (pre-orogenic, Taconic, Acadian, Alleghanian, and post-Alleghanian), and also treat Paleozoic paleontologic control, regional geophysics, thermal history of the crystalline terranes, parts of the orogen buried beneath the Atlantic and eastern Gulf coastal plains, regional geomorphology, mineral and energy resources; an integration chapter also is included. The Ouachita chapters cover physical stratigraphy and biostratigraphy of the Paleozoic rocks, structural geology, a synthesis of the subsurface geology beneath the western Gulf Coastal Plain, a review of the mineral and energy resources, regional geophysics, and a tectonic synthesis. Twelve excellent plates provide four-color geologic maps, structural cross sections, tectonic syntheses, and geophysical maps; a black-and-white synthesis of Appalachian mineral deposits, and a reflection seismic cross section.