Transgressive–regressive sequences on the slope of an isolated carbonate platform (Middle–Late Permian, Laibin, South China)

Qiu, Zhen; Wang, Qingchen; Zou, Caineng; Yan, Detian; Wei, Hengye

doi:10.1007/s10347-012-0359-4

Cited by 31 publications

(21 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1b). Bed 6j and Bed 6k at the top of the Maokou Formation are peloidal wackestone-packstone limestones representing slope depositional environments (Wignall et al, 2009b;Qiu et al, 2014). Bed 7a and Bed 7b at the base of the Heshan Formation consist of two chert layers intercalated with a few lensoid limestone layers, which are about 36 cm and 25 cm in thickness ( Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Bed 7a and Bed 7b are composed of two chert layers deposited in a basin environment, and Bed 6k consists of limestones deposited in a slope environment (Shen et al, 2007;Wignall et al, 2009b). A depositional hiatus had been suggested below Bed 6i-upper (Jin et al, 2006) and at the base of Laibin limestone (Wignall et al, 2009b;Qiu et al, 2014), suggesting that these Laibin limestones (including Bed 6k) in the isolated platform in Nanpanjiang Basin were sensitive to the sea-level change. A depositional hiatus had been suggested below Bed 6i-upper (Jin et al, 2006) and at the base of Laibin limestone (Wignall et al, 2009b;Qiu et al, 2014), suggesting that these Laibin limestones (including Bed 6k) in the isolated platform in Nanpanjiang Basin were sensitive to the sea-level change.…”

Section: Implication For the Age Of Glbmentioning

confidence: 99%

“…Vertical burrows at the top of Bed 6k is likely to be a firmground and a transgressive surface (Wignall et al, 2009b), probably suggesting a short-time hiatus. A depositional hiatus had been suggested below Bed 6i-upper (Jin et al, 2006) and at the base of Laibin limestone (Wignall et al, 2009b;Qiu et al, 2014), suggesting that these Laibin limestones (including Bed 6k) in the isolated platform in Nanpanjiang Basin were sensitive to the sea-level change. The relative rapid negative excursion of δ 13 C at the top of Bed 6k (Yan et al, 2013) may suggest a discontinuous deposition in the Penglaitan section, because this carbon isotopic negative excursion resulted from the diagenetic alteration instead of a perturbation of the global carbon cycle (Jost et al, 2014).…”

Section: Implication For the Age Of Glbmentioning

confidence: 99%

See 2 more Smart Citations

SIMS zircon U‐Pb dating from bentonites in the Penglaitan Global Stratotype Section for the Guadalupian–Lopingian boundary (GLB), South China

et al. 2015

Self Cite

View full text Add to dashboard Cite

The Penglaitan section, as the Global Stratotype Section for the Guadalupian–Lopingian boundary (GLB), displays continuous deposition with a complete succession of pelagic conodont zones across the GLB. However, there is no reliable radiometric age from the Penglaitan section itself to constrain the GLB. Here, we report SIMS zircon U‐Pb ages from two bentonite layers (Bed 7c) in the Penglaitan Global Stratotype Section near the GLB. The sample PL‐62‐1 yields a weighted mean 238U/206Pb age of 257.1 ± 2.2 Ma, and the sample PL‐62‐2 yields a weighted mean 206Pb/238U age of 257.0 ± 4.2 Ma. Therefore, we consider 257.0–257.1 Ma as the age of deposition of Bed 7c (the end of the C. postbitteri postbitteri conodont Zone, ca. 86 cm above the GLB), and, considering the depositional rate of chert, we suggest 258.6 Ma as the age of the GLB. Copyright © 2015 John Wiley & Sons, Ltd.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Implication For the Age Of Glbmentioning

confidence: 99%

Section: Implication For the Age Of Glbmentioning

confidence: 99%

See 1 more Smart Citation

SIMS zircon U‐Pb dating from bentonites in the Penglaitan Global Stratotype Section for the Guadalupian–Lopingian boundary (GLB), South China

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…1) is located at the southeastern margin of the Laibin-Heshan isolated carbonate platform, and was surrounded by deep water basins during Late-Middle Permian time (Zheng and Hu, 2010). The sections around Laibin record deposition in a narrow basin, dominated by radiolarian chert deposition during much of the Middle-to Late Permian, but with shallower-water limestone facies, more typical of the surrounding cratonic areas, developed in the latest Middle Permian (Li et al, 2015;Qiu et al, 2014;Sha et al, 1990;Yao et al, 2012). This facies change is in response to eustatic sea-level fall or Dongwu uplift (Shen et al, 2007;Wang and Jin, 2000).…”

Section: Paleogeographic and Geological Settingmentioning

confidence: 99%

“…2) is mainly composed of grey medium-thick massive limestone that includes abundant fossils, and is quite different from the underlying interbedded chert and limestone beds (H115 to H118), which have been divided into seven units (Unit 2-8 in Jin et al, 2001Jin et al, , 2006. The facies change from Member III to Member IV is considered to be a record of regression during the Late Guadalupian (Chen et al, 2009;Jin et al, 2001Jin et al, , 2006Qiu et al, 2014;Wignall et al, 2009b). This sea level fall ultimately led to an unconformity that caps the Maokou Formation in most places in South China.…”

Section: Lithology and Biostratigraphymentioning

confidence: 99%

High‐Resolution Floating Point Time Scale (FPTS) of the Permian Capitanian Stage in South China

Xue

Yan

Ellwood

et al. 2015

Chinese J of Geophysics

View full text Add to dashboard Cite

Here we present a magnetic susceptibility (χ) dataset from the Permian Capitanian strata exposed in the Tieqiao section, Laibin area, South China, a supplementary reference section for the Guadalupian-Lopingian (Middle-Upper Permian) Global Boundary Stratotype Section and Point (GSSP). The succession consists of alternating thin-bedded chert with micritic limestone of basinal and slope facies, with a carbonate cap indicating shallow-water platform deposition. χ datasets, which are mostly negative (diamagnetic), suggest that the Laibin area was isolated from terrigenous sources during most of the Capitanian. A sudden increase in the χ signal just below the Guadalupian-Lopingian (G-L) boundary is recorded. Although regression at the terminal Capitanian might have contributed to the increase, the coincidence of the increase with the onset of the Emeishan Large Igneous Province (LIP) eruptions demonstrate pronounced volcanic effects controlling χ in this part of the section. χ and thermomagnetic susceptibility measurements indicate that the dominant magnetic constituents in this study are diamagnetic calcite and chert, with subordinate paramagnetic and ferrimagnetic minerals, derived from eolian and volcanic sources, and producing the cyclicity observed in the dataset.Spectral (time-series) analyses of χ data were performed using Multi Taper Method (MTM) and Fourier Transform (FT) analysis. Five frequencies that are consistent with Milankovitch-band orbital forcing were compared to the dataset: eccentricity E1 and E2 (100 and 405 ka, respectively), obliquity O2 (44.10 ka), and precession P1 (17.70 ka) and P2 (20.95 ka). Interpretation of these results indicates that the duration for the Capitanian in the Tieqiao section was ∼3.85 Ma. Likewise, the mean sediment accumulation rate (SAR) for the whole Capitanian was ∼2.91 cm·ka −1 . In addition, graphic comparison of the Tieqiao χ data to a floating point time scale for Upper Wordian through Capitanian time allows estimates of the duration for conodont zones identified from the section; these ranging from 26.6 ka to 2.3 Ma before extinction of individual conodont species. Therefore, timing of the onset age of Emeishan LIP eruptions is estimated to yield an age of 262.7 Ma, with placement of these eruptions at 1.4 Ma below the G-L boundary.

show abstract

Early–Middle Permian strontium isotope stratigraphy of marine carbonates from the northern marginal areas of South China: Controlling factors and implications

Azmy

Yang

et al. 2020

Geological Journal

View full text Add to dashboard Cite

The radiogenic strontium isotope (87Sr/86Sr) system is a powerful tool for constraining sea‐level change and palaeoclimatic variations as well as tectonic activities. The Permian is a period that records the lowest seawater Sr‐isotopic ratios in the Earth's history. The near‐primary geochemical signatures retained in the micritic carbonates of the Luduba section (uppermost lower to Middle Permian) on the northern margin of the South China Block allowed the reconstruction of reliable carbon and Sr‐isotope profiles for global chemostratigraphic correlations. The investigated interval (~300 m) spans the Chihsia and overlying Maokou formations (Kungurian to Capitanian series). The 87Sr/86Sr values decrease consistently upward from 0.70833 to 0.70684, and their trend correlates well with a long‐term increase in the carbon isotope (δ13C) values. The negative correlation between the 87Sr/86Sr and δ13C values suggests that the sea‐level change, climatic conditions, opening of the Neo‐Tethys Ocean, and accretion of the Pangean Supercontinent are among the factors that might have contributed to the consistent depletion of the 87Sr/86Sr values. The rate of upward decrease in 87Sr/86Sr values throughout the Chihsia Formation is generally higher than that of the overlying Maokou Formation, which provides a possible marker for intra‐ and interbasinal basin stratigraphic correlations. The general increase in the δ13C values of the Luduba profile peaks at ~5‰, which correlates with the distinct lowest 87Sr/86Sr value (~0.70684) near the top of the Maokou Formation (Upper Capitanian). The δ13C values decrease to 3.6‰ at the top of the Maokou Formation, that correlates with the rapid sea‐level drop in the Late Guadaualupian worldwide. Meanwhile, the87Sr/86Sr ratios remain low values, probably due to the development of cold climate, increasing input of hydrothermal flux and low terrestrial runoff.

show abstract

Transgressive–regressive sequences on the slope of an isolated carbonate platform (Middle–Late Permian, Laibin, South China)

Cited by 31 publications

References 51 publications

SIMS zircon U‐Pb dating from bentonites in the Penglaitan Global Stratotype Section for the Guadalupian–Lopingian boundary (GLB), South China

SIMS zircon U‐Pb dating from bentonites in the Penglaitan Global Stratotype Section for the Guadalupian–Lopingian boundary (GLB), South China

High‐Resolution Floating Point Time Scale (FPTS) of the Permian Capitanian Stage in South China

Early–Middle Permian strontium isotope stratigraphy of marine carbonates from the northern marginal areas of South China: Controlling factors and implications

Contact Info

Product

Resources

About