A translithospheric suture in the vanished 1-Ga lithospheric root of South India: Evidence from contrasting lithosphere sections in the Dharwar Craton

Griffin, William L.; Kobussen, A. F.; Babu, E. V. S. S. K.; O’Reilly, Suzanne Y.; Norris, R.; Sengupta, P.

doi:10.1016/j.lithos.2009.05.015

Cited by 95 publications

(47 citation statements)

References 40 publications

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“…For other cratons, however, previous studies have shown that all of these cratons, with the exception of the South Africa Craton, have been subjected to significant lithospheric thinning. The India Craton is the best example for lithospheric thinning, in which the lithospheric mantle has been thinned from ~200 km at 1.1 Ga to less than 100 km at the present time [50,51]. This suggests that lithospheric thinning is not unique for the NCC, but quite common for all cratons in the world.…”

Section: Mechanism Of the Ncc Destructionmentioning

confidence: 99%

Timing, scale and mechanism of the destruction of the North China Craton

Zhu

Chen

et al. 2011

Sci. China Earth Sci.

589

364

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The North China Craton (NCC) is a classical example of ancient destroyed cratons. Since the initiation of the North China Craton Destruction Project by the National Natural Science Foundation of China, numerous studies have been conducted on the timing, scale, and mechanism of this destruction through combined interdisciplinary research. Available data suggest that the destruction occurred mainly in the eastern NCC, whereas the western NCC was only locally modified. The sedimentation, magmatic activities and structural deformation after cratonization at ~1.8 Ga indicate that the NCC destruction took place in the Mesozoic with a peak age of ca 125 Ma. A global comparison suggests that most cratons on Earth are not destroyed, although they have commonly experienced lithospheric thinning; destruction is likely to occur only when the craton has been disturbed by oceanic subduction. The destruction of the NCC was coincident with globally active plate tectonics and high mantle temperatures during the Cretaceous. The subducted Pacific slab destabilized mantle convection beneath the eastern NCC, which resulted in cratonic destruction in the eastern NCC. Delamination and/or thermal-mechanical-chemical erosion resulted from the destabilization of mantle convection. timing, scale and mechanism, craton destruction, North China Craton Citation:Zhu R X, Chen L, Wu F Y, et al. Timing, scale and mechanism of the destruction

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Section: Mechanism Of the Ncc Destructionmentioning

confidence: 99%

Timing, scale and mechanism of the destruction of the North China Craton

Zhu

Chen

et al. 2011

Sci. China Earth Sci.

589

364

View full text Add to dashboard Cite

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“…However, later studies using seismic receiver function data indicate a lithospheric thickness 6100 km beneath most of Peninsular India (Kumar et al, 2007). Therefore, the thick lithospheric root sampled by the 1.1 Ga Wajrakarur kimberlites may have been destroyed during the breakup of Gondwanaland thus allowing rapid northward movement of the Indian continent (Griffin et al, 2009).…”

Section: Geological Settingmentioning

confidence: 99%

Subduction-related origin of eclogite xenoliths from the Wajrakarur kimberlite field, Eastern Dharwar craton, Southern India: Constraints from petrology and geochemistry

Dongre¹,

Jacob

Stern

2015

Geochimica et Cosmochimica Acta

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“…2), a feature largely absent from the WDC. The western boundary of the CB has also been marked by occurrences of several diamond-and non-diamond-bearing kimberlites and lamproites of Proterozoic age (∼1100 Ma; Chalapathi Rao 2008;Griffin et al 2009). …”

Section: The Dharwar Cratonmentioning

confidence: 99%

Complex shallow mantle beneath the Dharwar Craton inferred from Rayleigh wave inversion

Borah¹,

S.²,

Gaur³

2014

Geophysical Journal International

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S U M M A R YThe 3-D shear velocity structure beneath South India's Dharwar Craton determined from fundamental mode Rayleigh waves phase velocities reveals the existence of anomalously high velocity materials in the depth range of 50-100 km. Tomographic analysis of seismograms recorded on a network of 35 broad-band seismographs shows the uppermost mantle shear wave speeds to be as high as 4.9 km s -1 in the northwestern Dharwar Craton, decreasing both towards the south and the east. Below ∼100 km, the shear wave speed beneath the Dharwar Craton is close to the global average shear wave speed at these depths. Limitations of usable Rayleigh phase periods, however, have restricted the analysis to depths of 120 km, precluding the delineation of the lithosphere-asthenosphere boundary in this region. However, pressuretemperature analysis of xenoliths in the region suggests a lithospheric thickness of at least ∼185 km during the mid-Proterozoic period. The investigations were motivated by a search for seismic indicators in the shallow mantle beneath the distinctly different parts of the Dharwar Craton otherwise distinguished by their lithologies, ages and crustal structure. Since the ages of cratonic crust and of the associated mantle lithosphere around the globe have been found to be broadly similar and their compositions bimodal in time, any distinguishing features of the various parts of the Dharwar shallow mantle could thus shed light on the craton formation process responsible for stabilizing the craton during the Meso-and Neo-Archean.

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A translithospheric suture in the vanished 1-Ga lithospheric root of South India: Evidence from contrasting lithosphere sections in the Dharwar Craton

Cited by 95 publications

References 40 publications

Timing, scale and mechanism of the destruction of the North China Craton

Timing, scale and mechanism of the destruction of the North China Craton

Subduction-related origin of eclogite xenoliths from the Wajrakarur kimberlite field, Eastern Dharwar craton, Southern India: Constraints from petrology and geochemistry

Complex shallow mantle beneath the Dharwar Craton inferred from Rayleigh wave inversion

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