Discovery of Neoarchean suprasubduction zone ophiolite suite from Yishui Complex in the North China Craton

Santosh, M.; Teng, Xueming; He, Xiao-Fang; Tang, Li; Yang, Qiong-Yan

doi:10.1016/j.gr.2015.10.017

Cited by 124 publications

(32 citation statements)

References 56 publications

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“…In this study, only zircons with less than 10% discordance were considered valid for use in age statistics calculations and concordia diagrams. The 2.7-1.6 Ga age population yields two dominant age peaks at 2.5 and~1.85 Ga, which match well with the typical ages from the Precambrian basement of the NCB (Santosh, Teng, He, Tang, & Yang, 2016;Zhai & Santosh, 2011;G. C. Zhao & Zhai, 2013; Figure 7a).…”

Section: Resultssupporting

confidence: 77%

“…The 2.7–1.6 Ga age population yields two dominant age peaks at ~2.5 and ~1.85 Ga, which match well with the typical ages from the Precambrian basement of the NCB (Santosh, Teng, He, Tang, & Yang, ; Zhai & Santosh, ; G. C. Zhao & Zhai, ; Figure a). The records of tectonic magmatic events during the Neoarchean and Palaeoproterozoic are widespread across the entire NCC (Wan et al, ; Zhai, Hu, Zhao, Peng, & Meng, ).…”

Section: Discussionsupporting

confidence: 75%

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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: Resultssupporting

confidence: 77%

Section: Discussionsupporting

confidence: 75%

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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“…Recent studies reveal that the NCC is composed of a number of Archean microblocks which were amalgamated along multiple zones of ocean closure during the late Neoarchean (e.g. Santosh et al, 2016;Tang et al, 2016b;Yang et al, 2016). One of the popular tectonic classifications of NCC (e.g.…”

Section: Regiona L Geologymentioning

confidence: 99%

Petrology, phase equilibria modelling and zircon U–Pb geochronology of Paleoproterozoic mafic granulites from the Fuping Complex, North China Craton

Tang

Santosh

Tsunogae

et al. 2017

Journal Metamorphic Geology

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The Fuping Complex is one of the important basement terranes within the central segment of the Trans‐North China Orogen (TNCO) where mafic granulites are exposed as boudins within tonalite–trondhjemite–granodiorite (TTG) gneisses. Garnet in these granulites shows compositional zoning with homogeneous cores formed in the peak metamorphic stage, surrounded by thin rims with an increase in almandine and decrease in grossular contents suggesting retrograde decompression and cooling. Petrological and phase equilibria studies including pseudosection calculation using thermocalc define a clockwise P–T path. The peak mineral assemblages comprise garnet+clinopyroxene+amphibole+quartz+plagioclase+K‐feldspar+ilmenite±orthopyroxene±magnetite, with metamorphic P–T conditions estimated at 8.2–9.2 kbar, 870–882 °C (15FP‐02), 9.6–11.3 kbar, 855–870 °C (15FP‐03) and 9.7–10.5 kbar, 880–900 °C (15FP‐06) respectively. The pseudosections for the subsequent retrograde stages based on relatively higher H2O contents from P/T–M(H2O) diagrams define the retrograde P–T conditions of <6.1 kbar, <795 °C (15FP‐02), 5.6–5.8 kbar, <795 °C (15FP‐03), and <9 kbar, <865 °C (15FP‐06) respectively. Data from LA‐ICP‐MS zircon U–Pb dating show that the mafic dyke protoliths of the granulite were emplaced at c. 2327 Ma. The metamorphic zircon shows two groups of ages at 1.96–1.90 Ga (peak at 1.93–1.92 Ga) and 1.89–1.80 Ga (peak at 1.86–1.83 Ga), consistent with the two metamorphic events widely reported from different segments of the TNCO. The 1.93–1.92 Ga ages are considered to date the peak granulite facies metamorphism, whereas the 1.86–1.83 Ga ages are correlated with the retrograde event. Thus, the collisional assembly of the major crustal blocks in the North China Craton (NCC) might have occurred during 1.93–1.90 Ga, marking the final cratonization of the NCC.

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“…(b) Simplified geological map of the WSP (modified from Cao, 1996 andWan et al, 2011). Ages of the supracrustal rocks are based on Wan et al (2011), Wan, Dong, and TTG gneiss series, the granodiorite-monzogranite-syenogranite (GMS) series, the gabbro-diorite-quartz diorite (GDQ) series, and the charnockite series (Gao et al, 2018;Jahn et al, 1988;Li et al, 2016;Santosh et al, 2016;Wan et al, 2010Wan et al, , 2014Wan, Dong, & Liu, 2012). Prior geochronological investigations revealed that the TTG gneiss series formed during three episodes:~2.75-2.69,~2.67-2.60, and~2.56-2.50 Ga (Wan et al, 2014;Ren et al, 2016;W.…”

Section: Geological Settingmentioning

confidence: 99%

Neoarchaean subduction tectonics in Western Shandong Province, China: Evidence from geochemistry and zircon U–Pb–Hf isotopes of metabasalts

et al. 2019

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Neoarchaean supracrustal rocks, which were discovered in the Longhuzhai and Menglianggu areas of the Western Shandong Province (WSP) in the Eastern Block of the North China Craton (NCC), are fine-to medium-grained amphibolites that commonly underwent greenschist-to amphibolite-facies metamorphism. LA-ICP-MS zircon U-Pb analyses revealed that these metabasalts erupted at 2,527 ± 5 to 2,514 ± 4 Ma. These supracrustal rocks are tholeiitic basalts in chemical composition and exhibit relatively high SiO 2 (49.30-53.34 wt%) and MgO (5.24-11.82 wt%) contents but low TiO 2 (0.41-0.75 wt%) contents. They display flat chondrite-normalized rare earth element (REE) patterns ((La/Yb) N = 1.21-2.60) and negative Nb, Ta, and Ti anomalies ((Nb/La) PM = 0.16-0.54), which are similar to those of typical island arc tholeiites (IATs) in subduction-related settings. These findings, combined with the positive zircon εHf(t) values (+2.51 to +8.90) and εNd(t) values (+0.19 to +3.65), suggest that these metabasalts were derived from the partial melting of a depleted mantle source that was metasomatized by slab-derived fluids at shallow levels in the upper mantle. Accordingly, the development of arc-related tholeiitic volcanic rocks within the interior of the WSP imply that the Neoarchaean (2.6-2.5 Ga) subduction-related slab-wedge interaction mechanism was widespread in the WSP and played a crucial role in the formation of the continental crust and its growth.

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Discovery of Neoarchean suprasubduction zone ophiolite suite from Yishui Complex in the North China Craton

Cited by 124 publications

References 56 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

Petrology, phase equilibria modelling and zircon U–Pb geochronology of Paleoproterozoic mafic granulites from the Fuping Complex, North China Craton

Neoarchaean subduction tectonics in Western Shandong Province, China: Evidence from geochemistry and zircon U–Pb–Hf isotopes of metabasalts

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