Quickening the Pulse: Fractal Tempos in Continental Arc Magmatism

Research Article| April 01, 2015 Quickening the Pulse: Fractal Tempos in Continental Arc Magmatism Shanaka L. de Silva; Shanaka L. de Silva 1College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97333, USAE-mail: desilvas@geo.oregonstate.edu Search for other works by this author on: GSW Google Scholar Nancy R. Riggs; Nancy R. Riggs 2School of Earth Sciences and Environmental Sustainability, Northern Arizona University, Flagstaff, AZ 86011, USAE-mail: Nancy.Riggs@nau.edu Search for other works by this author on: GSW Google Scholar Andrew P. Barth Andrew P. Barth 3Department of Earth Sciences, Indiana University–Purdue University IndianapolisIndianapolis, IN 46202, USAE-mail: ibsz100@iupui.edu Search for other works by this author on: GSW Google Scholar Author and Article Information Shanaka L. de Silva 1College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97333, USAE-mail: desilvas@geo.oregonstate.edu Nancy R. Riggs 2School of Earth Sciences and Environmental Sustainability, Northern Arizona University, Flagstaff, AZ 86011, USAE-mail: Nancy.Riggs@nau.edu Andrew P. Barth 3Department of Earth Sciences, Indiana University–Purdue University IndianapolisIndianapolis, IN 46202, USAE-mail: ibsz100@iupui.edu Publisher: Mineralogical Society of America First Online: 09 Mar 2017 Online ISSN: 1811-5217 Print ISSN: 1811-5209 © 2015 by the Mineralogical Society of America Elements (2015) 11 (2): 113–118. https://doi.org/10.2113/gselements.11.2.113 Article history First Online: 09 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 Shanaka L. de Silva, Nancy R. Riggs, Andrew P. Barth; Quickening the Pulse: Fractal Tempos in Continental Arc Magmatism. Elements 2015;; 11 (2): 113–118. doi: https://doi.org/10.2113/gselements.11.2.113 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 SocietyElements Search Advanced Search Abstract The magmatic history of a continental arc can be characterized as punctuated equilibrium, whereby long periods of low-level activity are interrupted periodically by short bursts of high-volume magmatism ("flare-ups"). Geochronological records, most notably from zircon, reveal episodicity in volcanism, pluton formation, and detrital sedimentation in, and associated with, arc segments and volcano-plutonic suites. Distinct tempos can be recognized at all resolvable spatial and temporal scales and are broadly fractal, with each scale reflecting the timescale of processes occurring at different levels in the arc crust. The tempos of continental arc magmatism thus reflect modulation of the mantle-power input as it is progressively filtered through the continental crust. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.