Research Article| December 01, 1992 Did the Taconic Appalachians continue into southern South America? Luis H. Dalla Salda; Luis H. Dalla Salda 1Centro de Investigaciones Geologicas, Universidad Nacional de La Plata, Calle 1, no. 644, 1900 La Plata, Argentina Search for other works by this author on: GSW Google Scholar Ian W. D. Dalziel; Ian W. D. Dalziel 2Institute for Geophysics, University of Texas, 8701 Mopac Boulevard, Austin, Texas 79759 Search for other works by this author on: GSW Google Scholar Carlos A. Cingolani; Carlos A. Cingolani 1Centro de Investigaciones Geologicas, Universidad Nacional de La Plata, Calle 1, no. 644, 1900 La Plata, Argentina Search for other works by this author on: GSW Google Scholar Ricardo Varela Ricardo Varela 1Centro de Investigaciones Geologicas, Universidad Nacional de La Plata, Calle 1, no. 644, 1900 La Plata, Argentina Search for other works by this author on: GSW Google Scholar Author and Article Information Luis H. Dalla Salda 1Centro de Investigaciones Geologicas, Universidad Nacional de La Plata, Calle 1, no. 644, 1900 La Plata, Argentina Ian W. D. Dalziel 2Institute for Geophysics, University of Texas, 8701 Mopac Boulevard, Austin, Texas 79759 Carlos A. Cingolani 1Centro de Investigaciones Geologicas, Universidad Nacional de La Plata, Calle 1, no. 644, 1900 La Plata, Argentina Ricardo Varela 1Centro de Investigaciones Geologicas, Universidad Nacional de La Plata, Calle 1, no. 644, 1900 La Plata, Argentina Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1992) 20 (12): 1059–1062. https://doi.org/10.1130/0091-7613(1992)020<1059:DTTACI>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Luis H. Dalla Salda, Ian W. D. Dalziel, Carlos A. Cingolani, Ricardo Varela; Did the Taconic Appalachians continue into southern South America?. Geology 1992;; 20 (12): 1059–1062. doi: https://doi.org/10.1130/0091-7613(1992)020<1059:DTTACI>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The Appalachian Mountains, now terminating abruptly at the Gulf of Mexico coastal plain, may have formerly continued into southern South America. Rocks forming the basement of the Argentine Andes can be interpreted as remnants of an early Paleozoic orogen, the Famatinian belt, not unlike the Taconic Appalachians. Both orogens are bordered to the west (present coordinates) by lower Paleozoic carbonate platforms bearing the Olenellid trilobite fauna that is characteristic of Laurentia. Paleomagnetic and geologic data indicate that they could have formed as one continuous mountain chain, possibly extending into Antarctica, during Ordovician closure of an ocean basin ("southern" Iapetus) between Laurentia and Gondwana. The Taconic and Famatinian segments of the chain may have been truncated during Late Ordovician separation of Laurentia and Gondwana along the preexisting (late Neoproterozoic to Cambrian) rift system that initiated formation of the Ouachita embayment and the southern margin of North America. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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