Geochemical Characterization of Serpentinized Peridotites from the Shergol Ophiolitic Slice along the Indus Suture Zone (ISZ), Ladakh Himalaya, India

2017/07/14 by Irfan Maqbool Bhat, Talat Ahmad, D. V. Subba Rao · 24 citations
Earth and Planetary Sciences · #Basalt #Fibrous joint #Geochemistry #Geological and Geochemical Analysis #Geology #High-pressure geophysics and materials #Mantle (geology) #Olivine #Ophiolite #Paleontology #Partial melting #Peridotite #Spinel #Tectonics #earthquake and tectonic studies

paper · doi:10.1086/692653

published in The Journal of Geology 125(5), 501-513 (University of Chicago Press)

openalex publication_date 2017/07/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The Shergol ophiolitic slice is a dismembered ophiolite consisting predominantly of serpentinized peridotites along the Indus Suture Zone, Ladakh Himalaya, India. On the basis of modal mineralogy, Shergol serpentinized peridotites can be identified as spinel-bearing harzburgites. The characteristic U-shaped rare earth element (REE) patterns and whole-rock heavy-REE concentrations correspond to those of abyssal mantle rocks from mid-ocean ridges. Evaluation of Cr-spinel mineral chemistry reveals that they represent the residues left after low-to-moderate degrees of partial melting (<15%) in the spinel stability field in a mid-oceanic ridge tectonic environment. The whole-rock geochemistry suggests that the studied rocks represent a mantle residue left after removal of basaltic melts in the context of an ancient Jurassic-Cretaceous Neo-Tethys oceanic mantle section.

Citations

• Chromian spinel as a petrogenetic indicator in abyssal and alpine-type peridotites and spatially associated lavas
• The composition of the Earth
• Bulk-rock Major and Trace Element Compositions of Abyssal Peridotites: Implications for Mantle Melting, Melt Extraction and Post-melting Processes Beneath Mid-Ocean Ridges
• Peridotites from the Izu-Bonin-Mariana Forearc (ODP Leg 125): Evidence for Mantle Melting and Melt-Mantle Interaction in a Supra-Subduction Zone Setting

Cited by

• Non-silicate needles and metals in peridotites from Himalayan ophiolite, Western Ladakh, India: evidence of deep Earth origin
• Radiation Attenuation Assessment of Serpentinite Rocks from a Geological Perspective. [europepmc]

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• Bulk-rock Major and Trace Element Compositions of Abyssal Peridotites: Implications for Mantle Melting, Melt Extraction and Post-melting Processes Beneath Mid-Ocean Ridges
• Xonotlite and pectolite in rodingites from the Samail ophiolite: Markers of reducing conditions and element transfer during peridotite-gabbro interaction