Simple Bouguer gravity anomaly field and the inferred crustal structure of continental Ecuador

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Research Article| January 01, 1983 Simple Bouguer gravity anomaly field and the inferred crustal structure of continental Ecuador Tomas Feininger; Tomas Feininger 1Départment de Géologie, Université Laval, Québec, Québec G1K 7P4, Canada Search for other works by this author on: GSW Google Scholar M. K. Seguin M. K. Seguin 1Départment de Géologie, Université Laval, Québec, Québec G1K 7P4, Canada Search for other works by this author on: GSW Google Scholar Geology (1983) 11 (1): 40–44. https://doi.org/10.1130/0091-7613(1983)11<40:SBGAFA>2.0.CO;2 Article history first online: 01 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 Tomas Feininger, M. K. Seguin; Simple Bouguer gravity anomaly field and the inferred crustal structure of continental Ecuador. Geology 1983;; 11 (1): 40–44. doi: https://doi.org/10.1130/0091-7613(1983)11<40:SBGAFA>2.0.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 simple Bouguer gravity anomaly field of continental Ecuador corresponds closely to the physiographic provinces of the country. The Sierra, which includes the Andes and their foothills, is characterized by a pronounced low with values to −292 mgal, which reflects the deep Andean root. Bouguer anomalies over the Oriente become less negative away from the Sierra, chiefly in response to progressive thinning of continental crust eastward. The Costa, between the Sierra and the Pacific shore, in the north has the most positive on-land Bouguer anomalies (+162 mgal) so far known in the Western Hemisphere. This part of the Costa is underlain by an ancient oceanic plate now welded to the northwestern corner of the otherwise continental South American plate. 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.