Contrasting high field strength element contents of continental flood basalts from plume versus reactivated-arc sources

Research Article| August 01, 2001 Contrasting high field strength element contents of continental flood basalts from plume versus reactivated-arc sources J.H. Puffer J.H. Puffer 1Department of Geological Sciences, Rutgers University, Newark, New Jersey 07102, USA Search for other works by this author on: GSW Google Scholar Author and Article Information J.H. Puffer 1Department of Geological Sciences, Rutgers University, Newark, New Jersey 07102, USA Publisher: Geological Society of America Received: 13 Nov 2000 Revision Received: 19 Mar 2001 Accepted: 09 Apr 2001 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2001) 29 (8): 675–678. https://doi.org/10.1130/0091-7613(2001)029<0675:CHFSEC>2.0.CO;2 Article history Received: 13 Nov 2000 Revision Received: 19 Mar 2001 Accepted: 09 Apr 2001 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation J.H. Puffer; Contrasting high field strength element contents of continental flood basalts from plume versus reactivated-arc sources. Geology 2001;; 29 (8): 675–678. doi: https://doi.org/10.1130/0091-7613(2001)029<0675:CHFSEC>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 Published geochemical data pertaining to global continental flood basalts (CFBs) indicate that there are two contrasting distributions of high field strength elements (HFSEs) plotted on silicate Earth-normalized spider diagrams. Most CFBs plot close to a standard oceanic island basalt (OIB) line and are the product of magma from a mantle plume head mixed to varying degrees with magma from other sources. The compositional diversity of the OIB-like basalts is consistent with the interaction of plume heads with diverse mantle layers during gradual emergence followed by plume-tail magmatism along hotspot tracks. On the other hand, at least three CFBs, including those in the Central Atlantic magmatic province, the Siberian Traps, and the Lesotho basalt province of South Africa, plot close to a standard arc-basalt line. These arclike basalts contain virtually the same average HFSE contents. The much lower HFSE contents of the arclike CFBs are consistent with a sudden reactivation of dormant arc or backarc sources trapped under continental-plate sutures. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.