Sino-Korean Platform

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Sino-Korean Platform

 

the Sinian Shield, an ancient platform occupying the lower portion of the Huang Ho basin and the Korean Peninsula, as well as the floor of much of the Yellow Sea.

In the west, the continuation of the platform can be traced in the form of a narrow wedge along Inner Mongolia. The eastern part of the platform, which takes in Korea and East China, has a folded crystalline base of Precambrian (Proterozoic and Archaean) age. The basement, which emerges on the surface in the form of uplifts within Korea, the Liaotung Peninsula, and Shansi (to the west of Peking), is composed of metamorphic rock (gneisses, migmatites, crystalline schists, and amphibolites) and granites. Major deposits of ferruginous quartzites are related to the Anshan Series (Lower Proterozoic). The western, narrowed part of the platform is younger, and its base corresponds to the Baikalian folded system. The platform’s basement is overlaid with the rock of the sedimentary mantle (Proterozoic, Lower and Upper Paleozoic, in places Triassic and Jurassic), while the lower part of the sedimentary complex is composed of deposits from the Sinian system (the age of which corresponds to the Riphean complex of the USSR). Coal deposits are concentrated in Carboniferous, Permian, and Jurassic deposits, and bauxites in Permian deposits (Shantung Province).

P. N. KROPTKIN

References in periodicals archive ?
Another 21 essays review recent developments in such areas of Earth planetary science as atmospheric escape and the evolution of close-in exoplanets, the destruction of the North China Craton in the Mesozoic, global patterns of carbon dioxide variability from satellite observations, soil functions: connecting Earth's critical zone, marsh processes and their response to climate change and sea-level rise, and exoplanet clouds.
With this in mind, we propose a multidisciplinary study of superbly preserved mid-Proterozoic samples from the North China craton, largely obtained by drilling, to reconstruct the oxygenation history of the ocean and to investigate how nutrients in the ocean interact with this history.
The Xiaoqinling region, located at the southern margin of the North China craton, belongs to the Qinling-Dabie orogen, which delimits the boundary between the North China craton and the Yangtze craton (Figure 1; [39, 40]).
Zhou et al., "The early cretaceous Yangzhaiyu lode gold deposit, north China craton: A link between craton reactivation and gold veining," Economic Geology, vol.
The Dongfeng gold deposit is located in the uplift of the northwestern part of Jiaodong area, which belongs to North China Craton. The regional strata in the studying area consist mainly of metamorphic rocks in Jiaodong rock group, in Archaean era and Quaternary.
Zhao compiles, summarizes, and assesses data obtained for various tectonic domains in the North China Craton since intense geographical study of it began at the beginning of the 21st century, and evaluates current models that that been proposed during the past few years on the origin and evolution of the craton.
Sun, "The Xiong'er volcanic belt at the southern margin of the North China Craton: petrographic and geochemical evidence for its outboard position in the Paleo-Mesoproterozoic Columbia Supercontinent," Gondwana Research, vol.
A MORB-arc basalt-adakite association in the 2.5 Ga Wutai greenstone belt: late Archean magmatism and crustal growth in the North China Craton. Precambrian Research, 131, 323 343.
The North China Craton is unique in that half of its thick tectospheric root has been lost.
Most of the gold deposits in China concentrate in the North China Craton (NCC), and many of them have geological and geochemical signatures which suggest an orogenic gold mineralization style (e.g., [2, 5, 8, 11-14]).
In Paleozoic, due to the southward subduction of the Paleo-Asian oceanic plate beneath the northern margin of the North China Craton, extensive subduction-related intrusions have been recognized in the region, forming a typical Andean-type continental margin [24, 25].
The North China Craton (NCC), a major Precambrian craton in China, has been in focus in recent years with regard to craton destruction and the mechanism models [1-3].

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