Abstract
Research Article| April 01, 1972 Remnant Arcs DANIEL E KARIG DANIEL E KARIG Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92037 AUTHOR'S PRESENT ADDRESS: DEPARTMENT OFGEOLOGICAL SCIENCES, UNIVERSITY OF CALIFORNIA, SANTA BARBARA, CALIFORNIA 93106 Search for other works by this author on: GSW Google Scholar Author and Article Information DANIEL E KARIG AUTHOR'S PRESENT ADDRESS: DEPARTMENT OFGEOLOGICAL SCIENCES, UNIVERSITY OF CALIFORNIA, SANTA BARBARA, CALIFORNIA 93106 Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92037 Publisher: Geological Society of America Received: 06 May 1971 Revision Received: 22 Nov 1971 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1972, 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 (1972) 83 (4): 1057–1068. https://doi.org/10.1130/0016-7606(1972)83[1057:RA]2.0.CO;2 Article history Received: 06 May 1971 Revision Received: 22 Nov 1971 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 DANIEL E KARIG; Remnant Arcs. GSA Bulletin 1972;; 83 (4): 1057–1068. doi: https://doi.org/10.1130/0016-7606(1972)83[1057:RA]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 Remnant arcs are the submarine ridges which lie behind active island-arc systems. In simple cases, these ridges are bounded by scarp systems on both flanks, have volcaniclastic aprons on the rear flank, and are similar in composition to frontal arcs. Simple remnant arcs form as the rifted remnants of frontal arcs and are left behind as inter-arc basins widen. After creation, remnant arcs subside several kilometers. The simple morphology of some remnant arcs is obscured by sedimentation, by isostatic adjustment, and by tectonic reactivation. Occasionally, the polarity of an active arc system reverses, and, on the rear flank of the frontal arc, a new trench forms which consumes marginal basin crust. This reversed configuration results in arc-arc collisions and more complex forms of remnant arcs. The collision of a reversed arc with remnant arcs or continental margins is a likely explanation for the thrusting of oceanic crust over continental crust. Active and remnant arcs in which these processes are now taking place are located between New Guinea and the Solomon Islands. The oceanic crust on the leading edge of the New Britain ridge (reversed frontal arc) is colliding with New Guinea. 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.
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