Chapter 4 Geological and tectonic evolution of the Indo-Myanmar Ranges (IMR) in the Myanmar region

Khin, Kyi; Zaw, Khin; Aung, Lin Thu

doi:10.1144/m48.4

Cited by 29 publications

(1 citation statement)

References 74 publications

(117 reference statements)

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“…The range is subdivided into Nagaland-Manipur Hills, Chin Hills and Arakan Yoma from north to south. The Nagaland-Manipur-Chin hills are anked to the west by the low hill tracts of N-S trending fold belt of the Neogene molasse sediments (Khin et al, 2017;Acharyya, 2010). The chemical compositions of these rocks are signi cantly controlled by plate tectonic settings of their provenances and depositional basins, and as a result, the siliciclastic rocks from different tectonic settings signify terrain-speci c geochemical signatures (Bhatia and Crook, 1986;Roser and Korsch, 1986).…”

Section: Introductionmentioning

confidence: 99%

Geochemistry and detrital geochronology of sandstones of Barail Group of Indo-Myanmar Range, NE India

Shijoh

Pebam

Vales

et al. 2023

J. Sediment. Environ.

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The sedimentary sequence of Barail Group preserves the records of depositional history of Indo-Myanmar Range during Eocene-Oligocene. Field investigation, geochemistry and detrital geochronology are used to study its geochemical characteristics, sediment provenance and tectonic setting. Major elements based discrimination plots indicate sediments of this group are derived from quartzose sedimentary sources and deposited in a passive margin tectonic set-up.Barail sandstone display a gentle sloping LREE and more or less at HREE pattern, and show negative Eu anomaly and positive Sm anomaly. Detrital zircon U-

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Section: Introductionmentioning

confidence: 99%

Geochemistry and detrital geochronology of sandstones of Barail Group of Indo-Myanmar Range, NE India

Shijoh

Pebam

Vales

et al. 2023

J. Sediment. Environ.

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Detrital zircon U–Pb ages of Tertiary sequences (Palaeocene‐Miocene): Inner Fold Belt and Belt of Schuppen, Indo‐Myanmar Ranges, India

et al. 2022

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The along‐strike heterogeneity in the tectonics of Himalaya is well recognized; however, the eastern segment of Himalaya is less studied compared to the other segments. This study combines the comprehensive field data, as well as the U–Pb geochronology of sandstone samples from the Indo‐Burma Range (east India). The study shows that the Lower Disang Formation was deposited in an open marine environment with a steep gradient during the Late Cretaceous to Mid‐Eocene, accommodating the detritus solely from an Indian source. Furthermore, during the Early to Late Eocene interval, the sedimentary basin changed to a shallow marine shelf when the sediments from Himalayan as well as trans‐Himalaya were deposited. The Upper Disang Formation must have been deposited just before or during the collision process between the Indian and Asian plates. After the India‐Asian collision, there was a remnant ocean, in which the sediments of the Barail and Surma groups were deposited in the shallow marine to deltaic environments. The Tethys Ocean completely dried out in the Late Miocene resulting in a change from marine to fluvial environments, which facilitated the deposition of the sandstones of the Tipam Formation. Based on the U–Pb ages, the Palaeogene basin history in the Indo‐Burma Range was unlike the central Himalaya, that is, the detritus were mainly sourced from the Burmese Plate and adjoining magmatic rocks.

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Assessment of the Maximum Magnitude of Strike-Slip Faults in Myanmar

et al. 2019

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Chapter 4 Geological and tectonic evolution of the Indo-Myanmar Ranges (IMR) in the Myanmar region

Abstract: Geological and tectonic evolution of the Indo-Myanmar Ranges (IMR) in the Myanmar region

Cited by 29 publications

References 74 publications

Geochemistry and detrital geochronology of sandstones of Barail Group of Indo-Myanmar Range, NE India

Geochemistry and detrital geochronology of sandstones of Barail Group of Indo-Myanmar Range, NE India

Detrital zircon U–Pb ages of Tertiary sequences (Palaeocene‐Miocene): Inner Fold Belt and Belt of Schuppen, Indo‐Myanmar Ranges, India

Assessment of the Maximum Magnitude of Strike-Slip Faults in Myanmar

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