Abyssal pahoehoe with lava coils at the Galapagos rift

Research Article| March 01, 1977 Abyssal pahoehoe with lava coils at the Galapagos rift Peter Lonsdale Peter Lonsdale 1Marine Physical Laboratory, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093 Search for other works by this author on: GSW Google Scholar Author and Article Information Peter Lonsdale 1Marine Physical Laboratory, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1977) 5 (3): 147–152. https://doi.org/10.1130/0091-7613(1977)5<147:APWLCA>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 MailTo Tools Icon Tools Get Permissions Search Site Citation Peter Lonsdale; Abyssal pahoehoe with lava coils at the Galapagos rift. Geology 1977;; 5 (3): 147–152. doi: https://doi.org/10.1130/0091-7613(1977)5<147:APWLCA>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 In the inner rift valley of the active spreading center within the Panama Basin, narrow lava plains occur between the axial ridge of pillow basalt (the central high) and the fault scarps of the inner walls. These nearly horizontal flows are decorated with small-scale forms typical of subaerial pahoehoe, although they are at a water depth of 2.5 km. In particular, large (1- to 4-m diameter) coils of ropy pahoehoe have been mapped during a deep-tow survey and are believed to mark shear zones at the edges of individual streams of mobile lava. Eruption of plain-forming pahoehoe probably modifies the magnetic signature as well as the geomorphology of the axial zone. 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.