Abstract
In this contribution the composition of Cr-spinels from Suru valley ophiolite peridotites is described and compared these with published data from Shergol serpentinized peridotites, both of these sequences occur as dismembered ophiolite blocks along the Indus suture zone (ISZ), Ladakh Himalaya and those from Manipur ophiolite belong to the eastern Himalaya. Back scattered electron images reveal that the Cr-spinel have overgrowth of magnetite, which is the dominant textural feature of the investigated rock types. However, in few peridotite samples, gradual replacement of Cr-spinel by ferrian-chromite along grain boundaries commonly occurs. Based on the spinel geochemistry, the Shergol peridotites are characterized by Cr-poor/Al-rich Cr-spinels whereas, the Suru valley peridotites by Cr-rich/Al-poor Cr-spinels. Shergol and Manipur ophiolite indicate their ocean floor affinity and the Suru valley peridotites depict supra subduction zone characteristics.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
