Semantic Scholar extracted view of "Paleoproterozoic polyphase deformation in the Helanshan Complex: Structural and geochronological constraints on the tectonic evolution of the Khondalite Belt, North China Craton" by Hengzhong Qiao et al.
Khondalite, iteratively entangled with granitic leucosome, overwhelmingly represent a suprasolidus assemblage and a gross restitic signature, with negative K, Rb and Sr spikes, positive Cr spike, moderately enriched REE pattern and strong negative Eu anomaly. Moderate K/Rb ratio and weak or no HREE depletion of khondalite are …
2. Li Jianghai, Qian Xianglin, Geological setting of khondalite series in central portion of the North China Craton, western to
High-pressure felsic granulites in association with pelitic granulites are widely distributed in the Qianlishan Complex of the Khondalite Belt, North China Craton. A link between "inter-layered" felsic and pelitic granulites was established based on comprehensive metamorphic analysis, revealing that they record similar metamorphic …
The China khondalite protoliths appear to have been deposited in a cratonic basin along the northwest margin of the North China craton. Al though the khondalites from China and elsewhere chiefly have sedimentary protoliths, different compositions and lithol ogic proportions between khondalite suites indicate variable sediment provenance ...
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Khondalites, which form an important rock suite of the Eastern Ghats, are studied for their physical and elastic properties together with their petrology and petrochemistry. …
The Khondalite Belt is an important orogenic belt in the Western Block of the North China Craton that was formed by the collision of the Ordos and Yinshan blocks in the Paleoproterozoic. In the background to the Mesozoic multi-plate convergence, the Western Block lithosphere was activated along with magma and tectonic activity.
The Khondalite Belt is a potentially large UHT terrane, formed during Paleoproterozoic continent-continent collision between the Yinshan and Ordos blocks in the North China Craton ( Zhao et al., 2005, Zhao et al., 2012 ).
The Paleoproterozoic Khondalite belt in the North China craton preserves evidence for ultrahightemperature (UHT) crustal metamorphism associated with the collision of the Yinshan and Ordos Blocks. Here we apply two-feldspar geothermometry to UHT granulites from two localities newly reported in this study (Tuguishan and Xuwujia) and …
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The Khondalite Belt is an important orogenic belt in the Western Block of the North China Craton that was formed by the collision of the Ordos and Yinshan blocks in …
The Kangxiwar khondalites are similar in their protoliths, trace- element and rare-earth element geochemistry, P-T conditions, and age of formation to those of the South Altyn Tagh khondalite series.
الصين الضغط محطم الألف. شيبانج 45 الصين كوم معلومات مخروط محطم أتش تي أم أل 45. شيبانج 45 الصين كوم معل
The Khondalite Belt (Fengzhen belt; Fig. 1 a; Zhai et al., 2000, Zhai et al., 2010 ), formed in Paleoproterozoic by continent–continent collision between the Yinshan and Ordos blocks, is one of the most important delineation boundaries of tectonic subdivision of the NCC ( Yin et al., 2011, Zhao and Cawood, 2012 ). There are different …
4.2.1 Major Lithologies of the Khondalite Belt. The Paleoproterozoic Khondalite Belt is a ~1000 km long east-west-trending belt that extends from the Helanshan and Qianlishan …
Khondalite rocks of the Jining Complex mainly comprise sillimanite-garnet gneiss, garnet/sillimanite-bearing granite, massive porphyritic granite, garnet quartzite, calc-silicate, and marble with ...
Sapphirine-bearing UHT granulites from the Dongpo locality in the Khondalite Belt of the North China Craton have been comprehensively characterized in terms of petrology, mineral chemistry, metamorphic evolution and zircon geochronology. However, the precise timing of the peak-UHT metamorphism and other key stages in the …
It is generally accepted that subduction/collision were involved in the evolution of the Khondalite Belt, but the pre-collision tectonic setting and evolutionary history of …
Khondalite, iteratively entangled with granitic leucosome, overwhelmingly represent a suprasolidus assemblage and a gross restitic signature, with negative K, Rb …
These data are consistent with the quartz–sillimanite–garnet part of the khondalite assemblage in Orissa, and presumably in adjacent regions, being granulite facies–upper …
Khondalite is largely characterized by the equilibrium mineral assemblage of quartz-K feldpar-sillimanite-garnet-ilmenite. Biotite or rutile is noticed occasionally.
The basement of the North China craton (NCC) can be divided into eastern and western blocks separating the Trans-North China orogen on the basis of petrologic …
The Khondalite Belt (KB), a Paleoproterozoic collisional orogen in the North China Craton (NCC), lacks a well-established pre-collisional tectonic evolution due to the paucity of late Neoarchean to middle Paleoproterozoic magmatic rocks. This study focuses on the poorly dated charnockites in the Zhuozi area, the eastern segment of the KB.
Li Jianghai, Qian Xianglin, Geological setting of khondalite series in central portion of the North China Craton, western to middle Shanxi province, and its significance on continental cratonization, in China's Postdoctors' Contribution to the 30th International Geological Congress (eds. Chen Yanjing, Lu Bing et al.), Beijing: China Petroleum Industry Press, …
Abstract. Sapphirine-bearing UHT granulites from the Dongpo locality in the Khondalite Belt of the North China Craton have been comprehensively characteriz
Progressive charnockitization of a leptynite-khondalite suite in southern Kerala, India - evidence for formation of charnockites through decrease in fluid pressure?
The Paleoproterozoic khondalite series rocks of the North China Craton, consisting mainly of graphite-bearing Al-rich gneiss/granulite, garnet quartzite, felsic paragneiss, calc-silicate rock, and…
Eastern Ghats granulite belt, is an example of such type of belt in India. Khondalite, a typical paragneisses, is characterized by presence of fine leucogranite …
Understanding the timing and duration of metamorphism is fundamental to correctly interpreting the geodynamic evolution of orogenic events. Metamorphic constraints are still ambiguous in the Khondalite Belt, North China Craton, so Paleoproterozoic orogenic processes remain unclear. Here, we investigate a suite of high-grade rocks …
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