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Cratons of South America and Africa during the Triassic Period when the two continents were joined as part of the Pangea supercontinent. 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 ‹See Tfd› Greek: κράτος kratos "strength") is an old and stable part of the continental lithosphere, which consists of Earth ...
Guiana Shield. Guaporé or Central Brazilian Shield. The Angaran Shield of West Siberia. Arabian-Nubian Shield. (Western) Australian Shield. Baltic Shield of Scandinavia and Eastern Europe. Canadian Shield a.k.a. Laurentian Shield. The China-Korean Shield containing the North China Craton.
The rocks in the North China craton consist of Precambrian (4.6 billion years ago to 539 million years ago) basement rocks, with the oldest zircon dated 4.1 billion years ago and the oldest rock dated 3.8 billion years ago. [5]
The West African Craton (WAC) is one of the five cratons of the Precambrian basement rock of Africa that make up the African Plate, the others being the Kalahari craton, Congo craton, Saharan Metacraton and Tanzania Craton. [1] Cratons themselves are tectonically inactive, but can occur near active margins, [2] with the WAC extending across 14 ...
Modified from Zheng, Xiao & Zhao (2013). [1] The South China Craton or South China Block is one of the Precambrian continental blocks in China. [1] It is traditionally divided into the Yangtze Block in the NW and the Cathaysia Block in the SE. [2] The Jiangshan–Shaoxing Fault represents the suture boundary between the two sub-blocks. [2]
Scotia plate – Minor oceanic tectonic plate between the Antarctic and South American plates – 1,600,000 km 2 (620,000 sq mi) Somali plate – Minor tectonic plate including the east coast of Africa and the adjoining seabed – 16,700,000 km 2 (6,400,000 sq mi) Sunda plate – Tectonic plate including Southeast Asia.
The Superior Craton is a stable crustal block covering Quebec, Ontario, and southeast Manitoba in Canada, and northern Minnesota in the United States. It is the biggest craton among those formed during the Archean period. [1] A craton is a large part of the Earth's crust that has been stable and subjected to very little geological changes over ...
Saharan Metacraton. São Francisco Craton. Sarmatian Craton. Shield (geology) Slave Craton. South China Craton. Spavinaw terrane. Superior Craton.