Microblock amalgamation in the North China Craton: Evidence from Neoarchaean magmatic suite in the western margin of the Jiaoliao Block

Yang, Qiong-Yan; Santosh, M.; Collins, Alan S.; Teng, Xueming

doi:10.1016/j.gr.2015.04.002

Cited by 132 publications

(37 citation statements)

References 94 publications

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“…Ages of ~2.5 Ga characterize the initiation of crustal growth in the NCB, such as the TTG gneiss and contemporary supracrustal rocks (Diwu, Sun, Guo, Wang, & Liu, ; Diwu, Sun, & Wang, ; Wan et al, ). Ages of ~1.85 Ga represent the amalgamation of the Eastern and Western blocks along the Trans‐North China Orogen, which formed the coherent crystalline basement of the NCC (Q. Y. Yang, Santosh, Collins, & Teng, ; G. C. Zhao et al, ). Although the Yangtze Block can also provide these basement ages, it is excluded because the Palaeo‐Tethys Ocean obstructed the detritus input until the Late Triassic (Dong & Santosh, ).…”

Section: Discussionmentioning

confidence: 99%

Detrital zircon U–Pb ages from the Middle to Late Permian strata of the Yiyang area, southern North China Craton: Implications for the Mianlue oceanic crust subduction

et al. 2018

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Basin formation and sedimentary development in the southern North China Craton (NCC) are closely related to the tectonic evolution of the Qinling Orogenic Belt (QOB). With the aim of revealing the coupling evolution between the QOB and southern NCC during the Late Palaeozoic, an investigation based on provenance analysis was performed in this study. We present new detrital zircon U–Pb data from the Middle–Late Permian sediments in the Yiyang area, southern NCC. The results show that detrital zircons, from the Middle Permian Shihezi Formation, have three major peaks at 2,447, 1,905, and 296 Ma. In contrast, the lower and upper parts of the Late Permian Sunjiagou Formation yield major peaks at ~1.85 Ga and ~260 Ma, with weak peaks at ~2.5 Ga, ~450 Ma, and ~315 Ma, and the middle part of the Sunjiagou Formation displays a major peak at 429 Ma. Combined with published palaeocurrent data and lithofacies palaeogeography, the sediments of the Middle Permian Shihezi Formation were sourced from the Inner Mongolia Palaeo‐Uplift along the northern margin of the NCC, whereas the Upper Permian Sunjiagou Formation originated mainly from the southern margin of the NCC including the North Qinling Belt. This provenance shift indicates that the North Qinling Belt and southern margin of the NCC initiated the uplift and exhumation during the Late Permian. On the basis of the evolutionary history of the QOB, we attribute the uplift geodynamics to the Mianlue oceanic crust subduction. This study provides important sedimentological constraints for the tectonic conversion during the Late Palaeozoic along the southern margin of the NCC, which also restricts the start‐up time of the Mianlue oceanic crust subduction from the perspective of the basin–mountain system.

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Section: Discussionmentioning

confidence: 99%

Detrital zircon U–Pb ages from the Middle to Late Permian strata of the Yiyang area, southern North China Craton: Implications for the Mianlue oceanic crust subduction

et al. 2018

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“…Magmatism occurred in the Yinshan Block at ~2.5 Ga, as shown by U–Pb zircon ages obtained from (a) metadacites (2,516–2,500 Ma; Chen, ), diorites and granitoids (2,556–2,520 Ma; Jian et al, ; Jian, Krner, et al, ), and sanukitoid plutons (2,523–2,465 Ma; Ma, Fan, Santosh, & Guo, ) in the Guyang Complex; (b) metagabbro–charnockite suites in the Xiwulanbulang Complex (2,540–2,500 Ma; Zhang et al, ); (c) orthopyroxene‐bearing TTG gneisses in the Wuchuan Complex (2,545–2,507 Ma; Dong, Xu, Liu, & Sha, ); (d) meta‐sandstones from the Huade Group (2,690–2,450 Ma; Liu, Liu, et al, ), (e) orthogneisses form the Hongqiyingzi Group (2,535–2,484 Ma); and (f) sandstones from the Zhaertai Group (2,500 Ma). Distinct from the Wuchuan–Guyang–Xiwulanbulang charnockite in the west of the study area (Jian, Krner, et al, ; Ma, Guo, & Liu, ; Jian, Kröner, et al, ; Bai et al, ; Yang, Santosh, Collins, & Teng, ), Jining charnockite is exposed in the khondalite series belt and was affected by Paleoproterozoic orogenesis. Geochronological studies of the Shiguai (Cai, Liu, Liu, & Shi, ; Wan, Xie, et al, ), Daqingshan (Wan, Xu, et al, ), and Wulashan (Cai, Liu, Liu, Liu, et al, ).…”

Section: Geological Backgroundmentioning

confidence: 98%

Anatectic origin and geological significance of the Neoarchean ~2.5 Ga charnockite in the Jining area, northern North China Craton

et al. 2019

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The Neoarchean charnockite of Yinshan Block has been a hot topic into understanding the Precambrian geology of the North China Craton. Although there is a broad consensus that the charnockite is usually related to granulite‐facies metamorphism, its petrogenesis and tectonics still remain controversial. We present a comparative study of the petrography, geochemistry, and geochronology of charnockite and intermediate–basic granulite in the Jining area along the northern margin of the North China Craton. Inclusions within hypersthene in charnockite are used to identify the peak granulite facies mineral assemblage, with the formation of charnockite being attributed to anatexis of the protolith associated with this granulite‐facies metamorphism. Anatexis occurred mainly during postpeak isothermal decompression, as inferred from the metamorphic evolution and pressure–temperature conditions (granulite and charnockite record peak pressure–temperature conditions of 750°C–1,000°C and 0.8–1.2 GPa and 850°C–975°C and 0.9–1.0 GPa, respectively) derived from analyses of metamorphic minerals using electron probe microanalysis, combined with previous zircon geochronology. Hypersthene in charnockite is interpreted to be a residual or peritectic mineral phase that was present during anatexis, and the charnockite is inferred to have been crystallized from a melt containing abundant residual minerals. Charnockite has similar geochemical characteristics to those of intermediate–basic granulite but differs in several key ways: (a) The charnockite is strongly depleted in the large‐ion lithophile element Cs, the heat‐producing elements U and Th, and the high‐field‐strength elements Nb, Ta, P, and Ti; (b) it is enriched in Sr; and (c) it exhibits both positive and negative Eu anomalies, which are characteristics of granites formed largely by in situ anatexis. Geochemical constraints indicate that the intermediate charnockite and retrograde metamorphic biotite–hornblende gneiss may both be the product of mantle‐derived magma in a magmatic subduction‐related back‐arc extensional environment. This setting provided a hot spot for metamorphic anatexis, with additional heat being provided by the upwelling of asthenospheric mantle. After the cessation of subduction by ~2,470 Ma, a magmatic arc extensional setting developed in the Jining area. The charnockite was involved in Paleoproterozoic orogenesis in the North China Craton and was strongly modified by a ~1,950‐Ma metamorphism event.

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“…The North China Craton (NCC; Figure a,b) is one of the oldest Precambrian nuclei of Asia with rocks as old as 3.8 Ga and preserves the history of major Neoarchean crust building and microcontinent amalgamation prior to its final cratonization during late Palaeoproterozoic (Bai & Huang, ; G. C. Zhao & Zhai, ; Zhai & Santosh, , ; Yang, Santosh, Collins, & Teng, ; Yang & Santosh, ). Subsequently, the NCC remained as a stable platform until Mesozoic when extensive magmatism and lithospheric destruction occurred, associated with major mineralization (Menzies, Fan, & Zhang, ; Santosh, ; Deng & Wang, ; Li & Santosh, , ) These include the Early–Mid Jurassic (200–160 Ma) event and late Cretaceous event (Mao et al, ; Goldfarb & Santosh, ; Groves & Santosh, ).…”

Section: Regional Geologymentioning

confidence: 99%

Ore‐forming physicochemical conditions of tellurium–gold deposits: A case study from the Guilaizhuang deposit, eastern North China

Liu

Santosh

et al. 2018

Geological Journal

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Tellurium–gold deposits differ from normal gold mineralization in their significant content of tellurium‐bearing minerals with a close relation between Au and Te. The Guilaizhuang gold deposit is a major tellurium–gold deposit in the Shandong Province of China, and is located in the eastern margin of the North China Craton. The main sulfide minerals in this deposit are pyrite, As‐bearing pyrite, arsenopyrite, chalcopyrite, galena, sphalerite, chalcocite, and argentite. Tellurides contain native tellurium, altaite, coloradoite, petzite, and calaverite. Here, we investigate the fluid characteristics based on fluid inclusion studies and evaluate the intensive variables through thermodynamic computations to evaluate the ore genesis. We identify four stages for the mineralization: quartz‐pyrite stage, gold‐polymetallic sulfide stage, gold‐telluride stage, and carbonate stage. The gold‐telluride stage represents the main stage of gold precipitation. In gold‐polymetallic sulfide stage, Au formed within pyrite and As‐bearing pyrite in the form of invisible gold, whereas in the gold‐telluride stage, Au occurs as visible gold, such as native gold, electrum, calaverite, and petzite. Our data show that the mineralizing fluids were partly acidic and reduced during the gold‐polymetallic sulfide stage. Gold was transported as AuCl2− and Au(HS)2− complexes which was reduced by Fe2+. Gold might also occur as submicroscopic Au0 inclusions in pyrite and As‐bearing pyrite. The acidic state of the fluids favoured Au leaching from the surrounding rocks. During the gold‐telluride stage, gold might have migrated mostly as Au(HTe)2− and the Te combined at first with Ag to form hessite and subsequently with Au and Ag to form petzite and calaverite. With the decrease in Te content and increase in Au saturation, tellurium and native gold were precipitated. Our study provides insights into the physicochemical conditions of the formation of Te–Au deposits.

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Microblock amalgamation in the North China Craton: Evidence from Neoarchaean magmatic suite in the western margin of the Jiaoliao Block

Cited by 132 publications

References 94 publications

Detrital zircon U–Pb ages from the Middle to Late Permian strata of the Yiyang area, southern North China Craton: Implications for the Mianlue oceanic crust subduction

Detrital zircon U–Pb ages from the Middle to Late Permian strata of the Yiyang area, southern North China Craton: Implications for the Mianlue oceanic crust subduction

Anatectic origin and geological significance of the Neoarchean ~2.5 Ga charnockite in the Jining area, northern North China Craton

Ore‐forming physicochemical conditions of tellurium–gold deposits: A case study from the Guilaizhuang deposit, eastern North China

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