Solimões megashear: Intraplate tectonics in northwestern Brazil

Research Article| March 01, 1991 Solimões megashear: Intraplate tectonics in northwestern Brazil Mário V. Caputo Mário V. Caputo 1Petróleo Brasileiro S.A.-Petrobrás, Rodovia Arthur Bernardes, 5511 Belém, Pará, C.E.P. 66800, Brazil Search for other works by this author on: GSW Google Scholar Geology (1991) 19 (3): 246–249. https://doi.org/10.1130/0091-7613(1991)019<0246:SEMITI>2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Mário V. Caputo; Solimões megashear: Intraplate tectonics in northwestern Brazil. Geology 1991;; 19 (3): 246–249. doi: https://doi.org/10.1130/0091-7613(1991)019<0246:SEMITI>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 A belt of deformation in the Solimões basin of northwestern Brazil extends east-northeast from near the Peruvian border for about 1300 km. The belt is characterized by the en echelon arrangement of folds and faults interpreted as the result of right-slip displacements in a transpressive regime. The structures were formed during Late Jurassic time, probably due to collision of South America with allochthonous terranes as the opening of the South Atlantic Ocean began. The Iquitos arch near the western end of the megashear separates the Solimões basin from Subandean basins. The development of the Iquitos arch is interpreted to be related to orogenic loading along western South America by the Andean mountain belt. In Brazil,folds and faults associated with the Solimões megashear hold hydrocarbons within Paleozoic strata, and 15 gas and oil fields have so far been discovered. 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.