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The Dharwar Craton is an Archean continental crust craton formed between 3.6-2.5 billion years ago , which is located in southern India and considered the oldest part of the Indian peninsula. [ 2 ] Studies in the 2010s suggest that the craton can be separated into three crustal blocks since they show different accretionary history (i.e., the ...
A craton (/ ˈ k r eɪ t ɒ n / KRAYT-on, / ˈ k r æ t ɒ n / KRAT-on, or / ˈ k r eɪ t ən / KRAY-tən; [1] [2] [3] from Ancient Greek: κράτος kratos "strength") is an old and stable part of the continental lithosphere, which consists of Earth's two topmost layers, the crust and the uppermost mantle.
The epilogue of the tectonic evolution was marked by granitic and rhyolitic magmatic events, namely the emplacement of the Erinpura granite and the Malani Volcanics on the western side of Aravalli-Delhi orogenic belt. [4] This event is ranked third among the largest igneous province in the globe, with a total area of about 52,000 km 2 in India. [9]
shields are part of a craton where basement rock crops out at the surface and it is the relatively oldest and most stable part that are undeformed by the plate tectonics. The Aravalli Craton (Marwar-Mewar Craton or Western Indian Craton) covers Rajasthan as well as western and southern Haryana. It includes the Mewar Craton in the east and ...
Generalized paleogeographic evolution of the Tibetan Plateau. Only tectonic blocks of interest, i.e. Lhasa block representing the S. Tibet (in yellow) and the simplified N. Tibet block (in blue) are shown. The inferred age in this model is not necessarily consistent with the timing of collisional onset as discussed in above sections.
Finally, supercontinent Columbia collided in the northern margin of the North China Craton at 1.8 billion years ago. Fig. 5. Tectonic evolution of the Western Block proposed by Kusky et al. [5] [40] (1) Wutai Arc in the east and an Exotic arc in the west subducted beneath the juvenile Western Block before 2.3 Ga. (2) Inner Mongolia-North Hebei ...
A craton is a large part of the Earth's crust that has been stable and subjected to very little geological changes over a long time. [2] The size of Superior Craton is about 1,572,000 km 2. [3] The craton underwent a series of events from 4.3 to 2.57 Ga. These events included the growth, drifting and deformation of both oceanic and continental ...
Ur is a hypothetical supercontinent that formed in the Archean eon around 3.1 billion years ago (Ga). In a reconstruction by Rogers, Ur is half a billion years older than Arctica and, in the early period of its existence, probably the only continent on Earth, making it a supercontinent despite probably being smaller than present-day Australia.