GEOLOGY OF AN AREA OF THE CARLSBERG RIDGE, INDIAN OCEAN

Abstract

Research Article| June 01, 1965 GEOLOGY OF AN AREA OF THE CARLSBERG RIDGE, INDIAN OCEAN D. H MATTHEWS; D. H MATTHEWS DEPT. GEODESY AND GEOPHYSICS, UNIVERSITY OF CAMBRIDGE, ENGLAND (MATTHEWS AND VINE) Search for other works by this author on: GSW Google Scholar F. J VINE; F. J VINE DEPT. GEODESY AND GEOPHYSICS, UNIVERSITY OF CAMBRIDGE, ENGLAND (MATTHEWS AND VINE) Search for other works by this author on: GSW Google Scholar J. R CANN J. R CANN DEPT. MINERALOGY AND PETROLOGY, UNIVERSITY OF CAMBRIDGE, ENGLAND (CANN) Search for other works by this author on: GSW Google Scholar Author and Article Information D. H MATTHEWS DEPT. GEODESY AND GEOPHYSICS, UNIVERSITY OF CAMBRIDGE, ENGLAND (MATTHEWS AND VINE) F. J VINE DEPT. GEODESY AND GEOPHYSICS, UNIVERSITY OF CAMBRIDGE, ENGLAND (MATTHEWS AND VINE) J. R CANN DEPT. MINERALOGY AND PETROLOGY, UNIVERSITY OF CAMBRIDGE, ENGLAND (CANN) Publisher: Geological Society of America Received: 26 Jun 1964 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1965;, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1965) 76 (6): 675–682. https://doi.org/10.1130/0016-7606(1965)76[675:GOAAOT]2.0.CO;2 Article history Received: 26 Jun 1964 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation D. H MATTHEWS, F. J VINE, J. R CANN; GEOLOGY OF AN AREA OF THE CARLSBERG RIDGE, INDIAN OCEAN. GSA Bulletin 1965;; 76 (6): 675–682. doi: https://doi.org/10.1130/0016-7606(1965)76[675:GOAAOT]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 SocietyGSA Bulletin Search Advanced Search Abstract An area of the crest of the Carlsberg Ridge, the mid-ocean ridge in the northwestern Indian Ocean, has been surveyed in detail; the area measures 50 by 38 nautical miles. Contour maps and profiles show the results obtained with a precision echo-sounder and a proton magnetometer. Within the surveyed area, a dextral tear fault displaces the median magnetic anomaly and the median valley through about ten miles. Fresh basalt lavas have been dredged from the area together with metamorphosed basaltic rocks. Brecciation and hydrothermal alteration of the crustal rocks in a comparatively wide fault zone may explain why the pattern of magnetic anomalies seems to have been expunged along the fault. 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.