Model for the Formation of Topographic Features of the East Pacific Rise Crest

Research Article| February 01, 1975 Model for the Formation of Topographic Features of the East Pacific Rise Crest David K. Rea David K. Rea 1School of Oceanography, Oregon State University, Corvallis, Oregon 97331 Search for other works by this author on: GSW Google Scholar Geology (1975) 3 (2): 77–80. https://doi.org/10.1130/0091-7613(1975)3<77:MFTFOT>2.0.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation David K. Rea; Model for the Formation of Topographic Features of the East Pacific Rise Crest. Geology 1975;; 3 (2): 77–80. doi: https://doi.org/10.1130/0091-7613(1975)3<77:MFTFOT>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 The topography of the East Pacific Rise axis is characterized by a central axial block 300 to 400 m high and 15 to 20 km wide. The axial block is flanked by asymmetrical abyssal hills tilted so that their steep slopes face the axis. Extrusion of basalt along the spreading center forms the axial block. According to the proposed model, subsidiary peaks or shoulders of the axial block are formed by faulting along surfaces that dip steeply toward the axis at the surface but decrease in dip with increasing depth. As the shoulders of the axial block are moved laterally outward by the spreading process, they are lowered along the curving fault surfaces to form the observed tilted abyssal hills. 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.