Fast strain rates during pluton emplacement: Magmatically folded leucocratic dikes in aureoles of the Mount Stuart Batholith, Washington, and the Tuolumne Intrusive Suite, California

Abstract

Research Article| March 01, 2005 Fast strain rates during pluton emplacement: Magmatically folded leucocratic dikes in aureoles of the Mount Stuart Batholith, Washington, and the Tuolumne Intrusive Suite, California Markus Albertz; Markus Albertz 1Department of Earth Sciences, University of Southern California, Los Angeles, California 90089-0740, USA Search for other works by this author on: GSW Google Scholar Scott R. Paterson; Scott R. Paterson 1Department of Earth Sciences, University of Southern California, Los Angeles, California 90089-0740, USA Search for other works by this author on: GSW Google Scholar David Okaya David Okaya 1Department of Earth Sciences, University of Southern California, Los Angeles, California 90089-0740, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Markus Albertz 1Department of Earth Sciences, University of Southern California, Los Angeles, California 90089-0740, USA Scott R. Paterson 1Department of Earth Sciences, University of Southern California, Los Angeles, California 90089-0740, USA David Okaya 1Department of Earth Sciences, University of Southern California, Los Angeles, California 90089-0740, USA Publisher: Geological Society of America Received: 10 Jul 2003 Revision Received: 03 Jun 2004 Accepted: 21 Jul 2004 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (2005) 117 (3-4): 450–465. https://doi.org/10.1130/B25444.1 Article history Received: 10 Jul 2003 Revision Received: 03 Jun 2004 Accepted: 21 Jul 2004 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Search Site Citation Markus Albertz, Scott R. Paterson, David Okaya; Fast strain rates during pluton emplacement: Magmatically folded leucocratic dikes in aureoles of the Mount Stuart Batholith, Washington, and the Tuolumne Intrusive Suite, California. GSA Bulletin 2005;; 117 (3-4): 450–465. doi: https://doi.org/10.1130/B25444.1 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 Finite strain analysis and thermal modeling of magmatically folded leucocratic dikes in the Mount Stuart Batholith, Washington and the Tuolumne Intrusive Suite, California, yield strain rates in the range of 10−2 to 10−13 s−1. Compared to published regional strain rates (10−13 to 10−15 s−1), wall-rock strain rates associated with dike-fed expansion (10−7 s−1), and rates resulting from numerical modeling of crystal-plastic creep in aureoles (10−11 s−1), our fast rates are several orders of magnitude higher.Field and microstructural observations suggest that multiple material transfer processes, including rigid rotation, ductile flow, cracking, and potentially melt-assisted granular flow operated in the aureoles to accommodate emplacement of these two plutons. Calculated durations of pluton construction and bulk shortening in the aureoles indicate that aureole deformation requires only slow, long-term strain rates of 10−14 s−1. Thus our local fast strain rates indicate that aureoles may be characterized by pulsating high strain rate surges. We suggest that magmatically folded dikes in these and other pluton aureoles around the world may be used as evidence for fast host rock strain rates during pluton emplacement. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.