Continental extension of northern Gondwana margin in the Eastern Himalaya: Constraints from geochemistry and U–Pb zircon ages of mafic intrusives in the Siang window, Arunachal Himalaya, India

Govind Oinam; A. Krishnakanta Singh; Mallickarjun Joshi; Amrita Dutt; M. Rajanikanta Singh; N. Lakhan Singh; R. K. Bikramaditya Singh

doi:10.5802/crgeos.6

Continental extension of northern Gondwana margin in the Eastern Himalaya: Constraints from geochemistry and U–Pb zircon ages of mafic intrusives in the Siang window, Arunachal Himalaya, India

Mapping Intimacies ◽

10.5802/crgeos.6 ◽

2020 ◽

Vol 352 (1) ◽

pp. 19-41

Author(s):

Govind Oinam ◽

A. Krishnakanta Singh ◽

Mallickarjun Joshi ◽

Amrita Dutt ◽

M. Rajanikanta Singh ◽

...

Keyword(s):

Eastern Himalaya ◽

Continental Extension ◽

Gondwana Margin ◽

Mafic Intrusives ◽

Arunachal Himalaya

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Decision letter for "Evidence of melt– and fluid–rock interactions in the refractory forearc peridotites and associated mafic intrusives from the Tuting–Tidding ophiolites, eastern Himalaya, India: Petrogenetic and tectonic implications"

10.1002/gj.4043/v2/decision1 ◽

2020 ◽

Keyword(s):

Eastern Himalaya ◽

Tectonic Implications ◽

Mafic Intrusives

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Review for "Evidence of melt– and fluid–rock interactions in the refractory forearc peridotites and associated mafic intrusives from the Tuting–Tidding ophiolites, eastern Himalaya, India: Petrogenetic and tectonic implications"

10.1002/gj.4043/v1/review2 ◽

2020 ◽

Author(s):

Subramanyam K.S.V.

Keyword(s):

Eastern Himalaya ◽

Tectonic Implications ◽

Mafic Intrusives

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Review for "Evidence of melt– and fluid–rock interactions in the refractory forearc peridotites and associated mafic intrusives from the Tuting–Tidding ophiolites, eastern Himalaya, India: Petrogenetic and tectonic implications"

10.1002/gj.4043/v1/review1 ◽

2020 ◽

Author(s):

B.K. Singh

Keyword(s):

Eastern Himalaya ◽

Tectonic Implications ◽

Mafic Intrusives

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Author response for "Evidence of melt– and fluid–rock interactions in the refractory forearc peridotites and associated mafic intrusives from the Tuting–Tidding ophiolites, eastern Himalaya, India: Petrogenetic and tectonic implications"

10.1002/gj.4043/v2/response1 ◽

2020 ◽

Author(s):

Amrita Dutt ◽

Athokpam Krishnakanta Singh ◽

Rajesh K. Srivastava ◽

Govind Oinam

Keyword(s):

Author Response ◽

Eastern Himalaya ◽

Tectonic Implications ◽

Mafic Intrusives

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Tectonic control over exhumation in the Arunachal Himalaya: new constraints from Apatite Fission Track Analysis

Geological Society London Special Publications ◽

10.1144/sp481.1 ◽

2018 ◽

Vol 481 (1) ◽

pp. 65-79 ◽

Cited By ~ 3

Author(s):

Vikas Adlakha ◽

R. C. Patel ◽

Akhil Kumar ◽

Nand Lal

Keyword(s):

Fission Track ◽

Eastern Himalaya ◽

Tectonic Deformation ◽

Apatite Fission Track ◽

The Core ◽

Exhumation Rates ◽

Crustal Exhumation ◽

Arunachal Himalaya ◽

Strong Control ◽

Track Analysis

AbstractNew apatite fission track (AFT) ages have been obtained from a synformal nappe of the Higher Himalayan Crystallines emplaced over the Lesser Himalayan metasedimentary zone of the Arunachal Himalaya, India. The AFT cooling ages within the nappe range between 5.0 ± 0.8 and 14.4 ± 1.3 Ma. Modelled exhumation rates calculated from these cooling ages vary from 0.25 ± 0.12 to 0.69 ± 0.25 mm a−1, which indicates slow exhumation since the Middle to Late Miocene. The AFT cooling ages are younging on both the northern and southern flanks of the synform and the oldest ages are confined to the core. The close mimicking of a shallow crustal exhumation pattern with the synformal structure suggests a strong control of the development of the synform on the exhumation path of the rocks and hence a tectonics–exhumation linkage in the central Arunachal Himalaya. Comparison of these AFT ages with the regional thermochronological record of the Eastern Himalaya reflects a variation in exhumation rates with strike. The AFT age pattern in the central Arunachal Himalaya does not match the pattern of precipitation, which suggests an absence of climate-driven tectonic deformation via focused erosion.

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