Title: Mantle insulation beneath the West African craton during the Precambrian-Cambrian transition
Abstract: Research Article| September 01, 2002 Mantle insulation beneath the West African craton during the Precambrian-Cambrian transition Miguel Doblas; Miguel Doblas 1Departamento de Geología, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain Search for other works by this author on: GSW Google Scholar José López-Ruiz; José López-Ruiz 1Departamento de Geología, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain Search for other works by this author on: GSW Google Scholar José-María Cebriá; José-María Cebriá 1Departamento de Geología, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain Search for other works by this author on: GSW Google Scholar Nasrrddine Youbi; Nasrrddine Youbi 2Université Cadi Ayyad, Faculté des Sciences Semlalia, 2390 Marrakech, Morocco Search for other works by this author on: GSW Google Scholar Eugenio Degroote Eugenio Degroote 3Escuela Universitaria de Ingeniería Técnica Agrícola, Universidad Politécnica de Madrid, Ciudad Universitaria, 28040 Madrid, Spain Search for other works by this author on: GSW Google Scholar Author and Article Information Miguel Doblas 1Departamento de Geología, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain José López-Ruiz 1Departamento de Geología, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain José-María Cebriá 1Departamento de Geología, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain Nasrrddine Youbi 2Université Cadi Ayyad, Faculté des Sciences Semlalia, 2390 Marrakech, Morocco Eugenio Degroote 3Escuela Universitaria de Ingeniería Técnica Agrícola, Universidad Politécnica de Madrid, Ciudad Universitaria, 28040 Madrid, Spain Publisher: Geological Society of America Received: 05 Feb 2002 Revision Received: 21 May 2002 Accepted: 29 May 2002 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2002) 30 (9): 839–842. https://doi.org/10.1130/0091-7613(2002)030<0839:MIBTWA>2.0.CO;2 Article history Received: 05 Feb 2002 Revision Received: 21 May 2002 Accepted: 29 May 2002 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 Miguel Doblas, José López-Ruiz, José-María Cebriá, Nasrrddine Youbi, Eugenio Degroote; Mantle insulation beneath the West African craton during the Precambrian-Cambrian transition. Geology 2002;; 30 (9): 839–842. doi: https://doi.org/10.1130/0091-7613(2002)030<0839:MIBTWA>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 At the time of the Precambrian-Cambrian transition, the West African craton underwent widespread magmatism, hydrothermal activity, and thermal rejuvenation. This tectonothermal event gave rise to an anorogenic "ring of fire" along the rim of this craton, following the Pan-African–Brasiliano belt that was reactivated by extension and transtension. The thermal phenomena were due to the progressive peripheral release of mantle heat that had built up beneath this craton because of strong insulating conditions. The West African craton at the Precambrian-Cambrian transition can thus be envisioned in terms of a gigantic pressure-cooker with a thick blanketing lithospheric lid. These insulation processes triggered an unusually hot mantle that was channeled by edge-driven convection toward the peri–West African craton extensional corridors and released through magmatic pressure-relief valves. Massive ice melting and outgassing of volcanic CO2 gave rise to a planet-scale sea-level rise, a greenhouse effect, and the end of the icehouse snowball Earth. These processes played an important role in the Phanerozoic explosion of life on Earth. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Publication Year: 2002
Publication Date: 2002-01-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 63
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot