Tectonically driven fluid flow in the Kodiak accretionary complex, Alaska

Research Article| May 01, 1987 Tectonically driven fluid flow in the Kodiak accretionary complex, Alaska Peter Vrolijk Peter Vrolijk 1Earth Sciences Board, University of California, Santa Cruz, California 95064 Search for other works by this author on: GSW Google Scholar Author and Article Information Peter Vrolijk 1Earth Sciences Board, University of California, Santa Cruz, California 95064 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1987) 15 (5): 466–469. https://doi.org/10.1130/0091-7613(1987)15<466:TDFFIT>2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Peter Vrolijk; Tectonically driven fluid flow in the Kodiak accretionary complex, Alaska. Geology 1987;; 15 (5): 466–469. doi: https://doi.org/10.1130/0091-7613(1987)15<466:TDFFIT>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 Sandstone and chert boudins that have syntectonic extensional veins are dominant structural elements in melanges of the Kodiak accretionary complex, Alaska. Detailed analyses of cogenetic methane-rich and water-rich fluid inclusions in syntectonic quartz veins indicate that fluid pressures dropped by 20% to 45% during crystal growth. This drop occurred faster than uplift of the rock and probably represents the local effect of fluid escaping to shallow levels in the subduction complex during melange deformation, possibly along an interconnected fracture network. An important implication of channelized fracture flow to higher levels in a subduction complex is that fluids may transport heat and solutes, thereby generating thermal and chemical anomalies along shallow faults. 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.