A Petrographic Atlas of Ophiolite

Ghose, Naresh Chandra; Chatterjee, Nilanjan; Fareeduddin,

doi:10.1007/978-81-322-1569-1

Cited by 23 publications

(4 citation statements)

References 15 publications

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“…When the waves pierce the LKP station from SE BAZ, most of the rays pass through the Naga Ophiolite belt. The Naga Ophiolite belt is mainly constituted with ophiolitic mélange complex and volcanics (Ghose, Chatterjee, & Fareeduddin., 2014; Khogenkumar et al, 2020; Singh et al, 2017). These volcanics are mainly basaltic to basaltic andesite in composition.…”

Section: Resultsmentioning

confidence: 99%

Spatial variations of crustal thickness and Poisson's ratio in the northeastern region of India based on receiver function analysis

et al. 2022

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Crustal configuration beneath the northeastern region of India has been investigated with the help of receiver function (RF) analysis of teleseismic earthquakes recorded by 19 broadband seismological stations. We adopted the H‐k stacking method to estimate crustal thickness and Poisson's ratio beneath each recording station. The study reveals a large variation in crustal thickness and Poisson's ratio which are correlated with the complex geology and tectonics of the region. The crust is observed to be thinner (36.5–41.6 km) beneath Bengal Basin, Shillong Plateau, and the Brahmaputra valley compared to the Indo‐Burma Ranges (IBR) (~40–54 km) and Arunachal Higher Himalaya (TAWA station, ~45 km) and Sikkim Himalaya (GTK station, ~46.5 km). A large variation of Poisson's ratio is observed in the region (~0.230–0.306). Poisson's ratio is generally low‐to‐intermediate in the Shillong‐Mikir Plateau, Bengal Basin, and the Brahmaputra Valley, while it is intermediate‐to‐high in the Tripura Fold Belt and the northern part of the IBR. The high Poisson's ratio in the Tripura Fold Belt is due to the presence of basaltic basement rock and clay minerals existing in the sedimentary rocks, whereas the presence of partially serpentinized rock in the ophiolitic mélange complex causes a high Poisson's ratio in the IBR.

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Section: Resultsmentioning

confidence: 99%

Spatial variations of crustal thickness and Poisson's ratio in the northeastern region of India based on receiver function analysis

et al. 2022

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“…39,83,84 The studied sample, belonging to the Mayodia ophiolitic sequence, exhibits economically valuable chrome spinel minerals (Mg,Fe) 2+ (Cr,Al,Fe) 2 3+ O 4 . [84][85][86] It comprises Cr-rich chlorite inclusions embedded within a matrix consisting of Cr-rich serpentine. Additionally, the sample displays notable compositional enrichment in Cr and Fe species in the form of ferrous chromite.…”

Section: Effect Of Chemical Additives and Mineral Chemistry On Integr...mentioning

confidence: 99%

Mechanistic insights into the co-recovery of nickel and iron via integrated carbon mineralization of serpentinized peridotite by harnessing organic ligands

Katre,

Ochonma,

Asgar

et al. 2024

Phys. Chem. Chem. Phys.

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“…The NE-SW Naga Hills in the northeastern region of the Indo-Myanmar Ranges (IMR) at Manipur, Nagaland, regions of Arunachal Pradesh, and neighboring Western Myanmar states, Myanmar and central part of the mountainous region have been recognized as a small arcuate area for the formation of ophiolite [1].…”

Section: Introductionmentioning

confidence: 99%

“…The Naga-Andaman suture passes through West Burma at the northeastern end of such a large collection of authorities, which flows over more than 3000 kilometers from NE India to the Andaman Island in the Ocean [2] [3] [4]. The NHO consisted of serpentinized peridotite dismembered bodies, mafia-ultramafic deposits, volcanic mafic, pyroclastic, oceanic sediments, and high-pressure metamorphoses along with glaucophane bearing meta basics, and cherts [1]. The Naga Hills, in northeastern India, represents the northern segment of the N-S trend in the Indo-Burmese Range (IBR), which is generally recognized as an extension of the Andaman-Indonesian island arc.…”

Section: Introductionmentioning

confidence: 99%

Micropalaeontological and Geochemical Evidence of the Late Jurassic Radiolarians Cherts of Naga Ophiolite Hill, Nagaland, Northeast-India

Ayyamperumal¹,

Ramasamy²,

Gopalakrishnan³

et al. 2021

OJG

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We analyzed the radiolarian assemblages (pelagic sediments) and geochemical studies of 15 samples collected from Meluri district Nagaland, Naga Hills Ophiolite belt (NHO) and it consists of the Flysch Naga-Arakan-Yoma trough beyond the Indo-Myanmar border. It reflects one of the many components of the Himalayan Orogenic systems of Tethyan oceanic crust discovered in Nagaland at Meluri district of India and they have very well-preserved studies and can be identified to Upper Jurassic (Kimmeridgian-mid-Tithonian). As well as a continuous sequence of Kimmeridgian-mid-Tithonian, five radiolarian assemblages have been identified in this study. This is so far the first recovery of pelagic sediment assemblages (Radiolarians) from the Naga Hills Ophiolite complex. Samples of Naga Hills Ophiolite belts fell in the Sublitharenite, Litharenite, and Fe-shale Fe-sand area, and the A-CN-K diagram indicates that these sediments in the source region were exposed deep to moderate weathering conditions. In the discriminant plot, the Naga Hill-Ophiolite-Chert samples occupy the field of origin of the sediment quartzose, and the log (K 2 O/Na 2 O) versus SiO 2 samples fall into the active continental marginal

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A Petrographic Atlas of Ophiolite

Cited by 23 publications

References 15 publications

Spatial variations of crustal thickness and Poisson's ratio in the northeastern region of India based on receiver function analysis

Spatial variations of crustal thickness and Poisson's ratio in the northeastern region of India based on receiver function analysis

Mechanistic insights into the co-recovery of nickel and iron via integrated carbon mineralization of serpentinized peridotite by harnessing organic ligands

Micropalaeontological and Geochemical Evidence of the Late Jurassic Radiolarians Cherts of Naga Ophiolite Hill, Nagaland, Northeast-India

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