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Isotopic Ages of the Trans-Amazonian Acidic Magmatism and the Nickerie Metamorphic Episode in the Precambrian Basement of Suriname, South America

1971; Geological Society of America; Volume: 82; Issue: 6 Linguagem: Inglês

10.1130/0016-7606(1971)82[1667

1943-2674

H.N.A. Priem, N.A.I.M. Boelrijk, E.H. Hebeda, E. A. Th. Verdurmen, R.H. Verschure,

Paleontology and Stratigraphy of Fossils

Research Article| June 01, 1971 Isotopic Ages of the Trans-Amazonian Acidic Magmatism and the Nickerie Metamorphic Episode in the Precambrian Basement of Suriname, South America H. N. A PRIEM; H. N. A PRIEM Z. W. O. Laboratorium voor Isotopen-Geologie, De Boelelaan 1085. Amsterdam-11 The Netherlands Search for other works by this author on: GSW Google Scholar N. A. I. M BOELRIJK; N. A. I. M BOELRIJK Z. W. O. Laboratorium voor Isotopen-Geologie, De Boelelaan 1085. Amsterdam-11 The Netherlands Search for other works by this author on: GSW Google Scholar E. H HEBEDA; E. H HEBEDA Z. W. O. Laboratorium voor Isotopen-Geologie, De Boelelaan 1085. Amsterdam-11 The Netherlands Search for other works by this author on: GSW Google Scholar E. A TH. VERDURMEN; E. A TH. VERDURMEN Z. W. O. Laboratorium voor Isotopen-Geologie, De Boelelaan 1085. Amsterdam-11 The Netherlands Search for other works by this author on: GSW Google Scholar R. H VERSCHURE R. H VERSCHURE Z. W. O. Laboratorium voor Isotopen-Geologie, De Boelelaan 1085. Amsterdam-11 The Netherlands Search for other works by this author on: GSW Google Scholar Author and Article Information H. N. A PRIEM Z. W. O. Laboratorium voor Isotopen-Geologie, De Boelelaan 1085. Amsterdam-11 The Netherlands N. A. I. M BOELRIJK Z. W. O. Laboratorium voor Isotopen-Geologie, De Boelelaan 1085. Amsterdam-11 The Netherlands E. H HEBEDA Z. W. O. Laboratorium voor Isotopen-Geologie, De Boelelaan 1085. Amsterdam-11 The Netherlands E. A TH. VERDURMEN Z. W. O. Laboratorium voor Isotopen-Geologie, De Boelelaan 1085. Amsterdam-11 The Netherlands R. H VERSCHURE Z. W. O. Laboratorium voor Isotopen-Geologie, De Boelelaan 1085. Amsterdam-11 The Netherlands Publisher: Geological Society of America Received: 23 Nov 1920 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1971, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1971) 82 (6): 1667–1680. https://doi.org/10.1130/0016-7606(1971)82[1667:IAOTTA]2.0.CO;2 Article history Received: 23 Nov 1920 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation H. N. A PRIEM, N. A. I. M BOELRIJK, E. H HEBEDA, E. A TH. VERDURMEN, R. H VERSCHURE; Isotopic Ages of the Trans-Amazonian Acidic Magmatism and the Nickerie Metamorphic Episode in the Precambrian Basement of Suriname, South America. GSA Bulletin 1971;; 82 (6): 1667–1680. doi: https://doi.org/10.1130/0016-7606(1971)82[1667:IAOTTA]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 SocietyGSA Bulletin Search Advanced Search Abstract Suites of granitoid rocks and acidic volcanics constitute the greater part of the Precambrian basement in Suriname. A Rb-Sr whole-rock isochron analysis on 32 samples (14 plutonic, 17 volcanic, and 1 pegmatite) yields an age of 1810 ± 40 m.y. (λ120 = 1.47 X 10-11/yr, error with 95 percent confidence level) placing this episode of magmatic activity within the Trans-Amazonian Orogenic cycle. Rb-Sr and K-Ar measurements on micas show that the western part of Suriname and the neighboring southern part of Guyana were affected by a tectonothermal event about 1200 ±100 m.y. ago, the Nickerie Metamorphic Episode. 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.