Late Paleozoic to Early Mesozoic provenance record of Paleo‐Pacific subduction beneath South China

Hu, Lisha; Cawood, Peter A.; Du, Yu; Yang, Jianghai; Jiao, Liangxuan

doi:10.1002/2014tc003803

Cited by 75 publications

(61 citation statements)

References 127 publications

(292 reference statements)

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“…Journal of Geophysical Research: Solid Earth However, the 317-318 Ma DW S-type granite and abundant Late Paleozoic detrital zircons in the Permian-Jurassic sedimentary rocks (Figure 12; e.g., Li et al, 2012;X. Hu et al, 2012;L. Hu et al, 2015) imply that eastern south China was in a more complex tectonic setting in the Late Paleozoic.…”

Section: 1029/2018jb015520mentioning

confidence: 99%

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Tectonic Switching of Southeast China in the Late Paleozoic

Shen

O’Reilly

et al. 2018

JGR Solid Earth

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The identification of Late Carboniferous (317 ± 3 Ma) Daixi‐Wufenglou S‐type granites and Early Triassic (247 ± 2 Ma) Houzhang complex (comprising monzodiorite and monzogranite) in southeast China provides new insights into the bewildering tectonics of south China, before its final welding to the Eurasian continent. The Daixi‐Wufenglou granites have high K2O (4.01–6.54 wt%), A/CNK (1.02–1.34), high bulk initial 87Sr/86Sr (0.7094–0.7160) and low εNd(t) (−8.87 to −6.31), and low zircon εHf(t) (−8.1 to −1.9) and high δ18O (12.7–14.0‰), indicating derivation by partial melting of a Neoproterozoic basement as a result of the input of mantle‐derived heat in a back‐arc extensional setting, triggered by rollback of the Paleo‐Pacific plate subduction beneath the outboard proto‐Japan arc. The monzodiorites are shoshonitic, characterized by high K, Ni, Cr, and Mg#, and the monzogranites are adakitic, defined by high Sr/Y, (La/Yb)n and low Y, Yb. They have similar 87Sr/86Sr (0.7085–0.7087), εNd(t) (−5.92 to −5.34), and εHf(t) (−7.5 to −2.5), indicating their petrogenetic linkage. The monzodiorites and monzogranites represent early crystallization phases (cumulates) and residual melts of a mantle‐derived magma, generated from a metasomatically enriched mantle. Integrating these data with other geological information from south China and neighboring countries, we propose a new model for the tectonic evolution of the Late Paleozoic south China, which was controlled by the subduction of the Paleo‐Pacific Ocean plate. A distal continental back‐arc setting was produced by slab rollback in the early stages, and an active continental margin environment was produced by the accretion of the proto‐Japan arc in the later stages.

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Section: 1029/2018jb015520mentioning

confidence: 99%

“…However, recently abundant Late Paleozoic detrital zircons were found in the Permian and younger sedimentary rocks in eastern south China (e.g., X. Hu et al, 2012;L. Hu et al, 2015;Li et al, 2012;Liang et al, 2013;Wang et al, 2009;Yao et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Tectonic Switching of Southeast China in the Late Paleozoic

Shen

O’Reilly

et al. 2018

JGR Solid Earth

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“…The strong intracontinental orogenesis in South China during the Caledonian (Shu, ; Zhang et al ., ) produced E–W compression in the study area (Hao et al ., ), resulting in the formation of an angular unconformity between the Cambrian and Devonian. During the Hercynian, the study area was dominated by uplift without strong folding, possibly related to the Emeishan mantle plume (Qin et al ., ; He et al ., ) or subduction of the Paleo‐Pacific Plate (Hu et al ., ). The Indosinian was the strongest tectonic event in the study area and resulted in the cessation of marine deposition and the formation of an angular unconformity between the Middle and Upper Triassic.…”

Section: Regional Geologymentioning

confidence: 97%

Structural Analysis of the Luowei Orefield in Xidamingshan, Guangxi, China

Feng

et al. 2019

Resource Geology

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Many types of hydrothermal deposits (e.g. W, Bi, Pb, Zn, Ag) are confined by faults and hidden granodiorite in the Luowei Orefield in Xidamingshan, Guangxi, China. The orebodies in the Luowei W–Bi deposit are predominantly layered and distributed along bedding in sandstones of the Cambrian Xiaoneichong Formation. The orebodies in the Lujing Pb–Zn deposit are controlled mainly by west‐south‐west (WSW)‐trending faults, and those in the Fenghuangshan Ag deposit are controlled mainly by west‐north‐west (WNW)‐trending faults, which were reverse faults during mineralization and were later reactivated as sinistral strike‐slip faults. The Luowei fault was formed postmineralization and resulted in sinistral displacement of the subsurface granodiorite and the Cambrian strata. A tectonomagmatic mineralization model of the Luowei Orefield is proposed, and the following conclusions were made. (i) Under a regional N–S compressive stress regime, WSW‐ and WNW‐trending reverse faults and N–S‐trending tensional fractures were formed. (ii) Magma intruded along the tensional fractures. Under the force of magmatic thermodynamics, mineralizing fluid migrated along bedding planes in sandstones and formed W–Bi orebodies at favorable sites. Some fluid migrated along WSW‐ and WNW‐trending faults to sites farther from the magma source, forming vein‐type Pb–Zn and Ag orebodies. (iii) After mineralization, under ~E–W compression, a NW‐trending left‐lateral slip fault was formed, cutting the subsurface granodiorite and orebodies. Concurrently, sinistral shear slip occurred on WNW‐trending ore‐controlling faults. However, the small displacement on these faults did not change the overall distributions of the rock mass and orebodies.

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“…Aoki et al, , ; Beranek & Mortensen, ; Cawood, Hawkesworth, & Dhuime, ; Dickinson & Gehrels, ; Ernst, Martens, & Valencia, ; Fedo, Sircombe, & Rainbird, ; Fujisaki et al, ; Hampton, Ridgway, & Gehrels, ; Han et al, ; Tsutsumi, Miyashita, Horie, & Shiraishi, ; G. G. Wang et al, ). In addition, combining detrital zircon U–Pb ages and provenance analysis provides not only maximum depositional ages but also information on the tectonic setting, and temporal and spatial variations in sediment provenance (Chen et al, ; Hu, Cawood, Du, Yang, & Jiao, ; Long et al, ). In contrast, detrital zircon FT ages provide evidence of the thermal and uplift history of basement rocks (Falkowski, Enkelmann, & Ehlers, ; Jiao, Seward, Little, & Kohn, ; Sueoka et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…G. Wang et al, 2009). In addition, combining detrital zircon U-Pb ages and provenance analysis provides not only maximum depositional ages but also information on the tectonic setting, and temporal and spatial variations in sediment provenance (Chen et al, 2016;Hu, Cawood, Du, Yang, & Jiao, 2015;Long et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Detrital zircon multi‐chronology, provenance, and low‐grade metamorphism of the Cretaceous Shimanto accretionary complex, eastern Shikoku, Southwest Japan: Tectonic evolution in response to igneous activity within a subduction zone

et al. 2017

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Detrital zircon multi‐chronology combined with provenance and low‐grade metamorphism analyses enables the reinterpretation of the tectonic evolution of the Cretaceous Shimanto accretionary complex in Southwest Japan. Detrital zircon U–Pb ages and provenance analysis defines the depositional age of trench‐fill turbidites associated with igneous activity in provenance. Periods of low igneous activity are recorded by youngest single grain zircon U–Pb ages (YSG) that approximate or are older than the depositional ages obtained from radiolarian fossil‐bearing mudstone. Periods of intensive igneous activity recorded by youngest cluster U–Pb ages (YC1σ) that correspond to the younger limits of radiolarian ages. The YC1σ U–Pb ages obtained from sandstones within mélange units provide more accurate younger depositional ages than radiolarian ages derived from mudstone. Determining true depositional ages requires a combination of fossil data, detrital zircon ages, and provenance information. Fission‐track ages using zircons estimated YC1σ U–Pb ages are useful for assessing depositional and annealing ages for the low‐grade metamorphosed accretionary complex. These new dating presented here indicates the following tectonic history of the accretionary wedge. Evolution of the Shimanto accretionary complex from the Albian to the Turonian was caused by the subduction of the Izanagi plate, a process that supplied sediments via the erosion of Permian and Triassic to Early Jurassic granitic rocks and the eruption of minor amounts of Early Cretaceous intermediate volcanic rocks. The complex subsequently underwent intensive igneous activity from the Coniacian to the early Paleocene as a result of the subduction of a hot and young oceanic slab, such as the Kula–Pacific plate. Finally, the major out‐of‐sequence thrusts of the Fukase Fault and the Aki Tectonic Line formed after the middle Eocene, and this reactivation of the Shimanto accretionary complex as a result of the subduction of the Pacific plate.

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Late Paleozoic to Early Mesozoic provenance record of Paleo‐Pacific subduction beneath South China

Cited by 75 publications

References 127 publications

Tectonic Switching of Southeast China in the Late Paleozoic

Tectonic Switching of Southeast China in the Late Paleozoic

Structural Analysis of the Luowei Orefield in Xidamingshan, Guangxi, China

Detrital zircon multi‐chronology, provenance, and low‐grade metamorphism of the Cretaceous Shimanto accretionary complex, eastern Shikoku, Southwest Japan: Tectonic evolution in response to igneous activity within a subduction zone

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