• Login
    View Item 
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Petrology of offshore basalts of Bombay harbour area, west coast of India

    Thumbnail
    View/Open
    Indian_J_Mar_Sci_17_208.pdf (746.6Kb)
    Date
    1988
    Author
    Karisiddaiah, S.M.
    Metadata
    Show full item record
    Abstract
    Recent marine geological and geophysical surveys indicate that the Deccan Traps extend to the offshore area of Bombay. Cores from bore holes in Deccan Traps collected from Bombay Harbour have been classified as basalts, olivine basalts, spilitic basalts, and dolerites. Plagioclase composition of basalts ranges from An72-60 to An40-45 (while in spilitic basalts it is in the range of 10-32%); augite (2Vz = 30 degrees - 50 degrees), fresh and altered olivine with ubiquitous magnetite and devitrified glass are conspicuous. The chemical data indicate that the basalts are tholeiitic. Secondary minerals encountered support the view that the basalts are spilitised. Basalts of this area show affinities to both continental and oceanic types especially in the abundances of TiO2 (1.21-2.51%), and therefore may be of transitional nature
    URI
    http://drs.nio.org/drs/handle/2264/7073
    Collections
    • Scholarly literature [9074]

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV