Ichnological and sedimentological features of the Hongguleleng Formation (Devonian–Carboniferous transition) from the western Junggar, NW China

Fan, Ruo-ying; Gong, Yiming

doi:10.1016/j.palaeo.2015.12.009

Cited by 27 publications

(26 citation statements)

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“…The western Junggar was located in a volcanic arc setting during the middle Palaeozoic (Xiao, Huang, Han, Sun, & Li, ), with widespread Palaeozoic sedimentary rocks and various types of volcanic rocks (Figure ). The Late Devonian Hongguleleng Formation now cropping out in the Shaerbuerti Mountains was deposited in the back‐arc basin of the Zharma–Saur arc (Figure ), which yield abundant and diversified faunas and floras (e.g., brachiopods, bryozoans, conodonts, trilobites, and plants; Chen et al, ; Suttner et al, ; Wang et al, ; Windley et al, ; Xia, ; Xu, Cai, Liao, & Lu, ; Zong, Fan, & Gong, ) as well as trace fossils (Fan & Gong, ).…”

Section: Geological Setting and Section Descriptionsmentioning

confidence: 99%

Section: Geological Setting and Section Descriptionsmentioning

confidence: 99%

“…Detailed conodont biostratigraphy (Wang et al, ), conondont biofacies, and microfacies (Wang, ), and sedimentology (Fan & Gong, ) of the Hongguleleng Formation are now available. In this paper, the palaeoenvironments of the lower member of the Hongguleleng Formation are adapted from Fan and Gong () and Wang (). In summary, three palaeoenvironments could be recognized from the bottom to top in the lower member of the Hongguleleng Formation, that is, foreshore (bed 18 of WLS and bed 1A of BLS), nearshore (bed 19 and beds 22–23 of WLS, bed 1B and bed 3 of BLS), and offshore (beds 20–21 of WLS and bed 2 of BLS).…”

Section: Geological Setting and Section Descriptionsmentioning

confidence: 99%

“…Distribution of sedimentary environments and ostracod assemblages from the lower member of the Hongguleleng Formation in the WLS and BLS, western Junggar, NW China. Conodont biofacies are adapted from Wang (); trace fossils are adapted from Fan and Gong (); microfacies types (mf1‐6) modified after Wang (), mf1‐mudstone with fine‐grained bioclasts; mf2‐wackestone‐packstone with fine‐grained bioclasts; mf3‐mudstone‐wackestone with fine‐grained bioclasts; mf4‐wackestone with fine‐grained bioclasts; mf5‐packstone with bioclasts; e. mf6‐grainstone with coarse‐grained bioclasts…”

Section: Ecology Of Ostracod Assemblages From the Hongguleleng Formationmentioning

confidence: 99%

“…In this paper, all the samples of ostracods were collected from western Junggar, NW China, which was featured by the archipelgic context during the Palaeozoic (Gong & Zong, ). Studies of sedimentary petrology and trace element geochemistry indicate that the Late Devonian Hongguleleng Formation was deposited with intermittent periods of volcanic activities (Carmichael et al, ; Carmichael, Waters, Suttner, Kido, & DeReuil, ; Fan & Gong, ).…”

Section: Introductionmentioning

confidence: 99%

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Late Devonian benthic ostracods from western Junggar, NW China: Implications for palaeoenvironmental reconstruction

2018

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This study focuses on the palaeoecology of the Late Devonian ostracods based on more than 4,500 carapaces and valves collected from stratal sections in western Junggar, NW China.According to the ostracod faunas from the Hongguleleng Formation, 3 ecological assemblages are proposed for open oceanic island arc context, that is, Ostracod Assemblage-1, Ostracod Assemblage-2, and Ostracod Assemblage-3. They characterize the foreshore, nearshore, and offshore environments, respectively. The water energy should be the first environmental factor controlling the composition of the ostracod assemblages from the Lower Member of the Hongguleleng Formation, and salinity fluctuations could be also involved.

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Section: Geological Setting and Section Descriptionsmentioning

confidence: 99%

Section: Geological Setting and Section Descriptionsmentioning

confidence: 99%

Section: Geological Setting and Section Descriptionsmentioning

confidence: 99%

Section: Ecology Of Ostracod Assemblages From the Hongguleleng Formationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Late Devonian benthic ostracods from western Junggar, NW China: Implications for palaeoenvironmental reconstruction

2018

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An integrated approach to understanding the depositional environment and organic matter enrichment factor in Carboniferous source rocks, Junggar Basin, NW China

Tao

Qiu

et al. 2018

Geological Journal

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Multiple indicators (trace fossils, trace metals, and δ 13 C org ) are used to assess the depositional environments and controls on organic carbon accumulation in the Lower Carboniferous Nanmingshui Formation, Junggar Basin, NW China. The majority of trace fossils belong to the Nereites ichnofacies, representing low energy, oxygen-poor, and relatively quiet bottom water environments. However, the shallow water trace fossil Planolites also appears in the strata, possibly reflecting variations in the bottom water oxygen contents of the turbidite succession. Redox proxies Th/U, V/Sc, and V/ (V + Ni) reveal variable redox conditions; most of the samples are in the range from suboxic to anoxic depositional conditions. Ni and Cu show a positive correlation with TOC, but U and V have no correlation with TOC, also suggesting the redox conditions were mainly suboxic. The P/Al and Cu/Al ratios of all samples are higher than those of Post-Archean Australian Shales (PAAS), and about two-thirds of the samples' Ba/Al and Ni/Al ratios are close to or higher than PAAS, suggesting the Early Carboniferous Junggar Basin had relatively high palaeo-productivity levels. δ 13 C org values average − 23.75‰, reflecting a mixture of terrestrial organic and marine organic matter. The indexes of Ba/Al, Cu/Al, Ni/Al, and δ 13 C org show good positive correlations with TOC, indicating the palaeo-productivity played an important role for the organic matter accumulation. On the other hand, the TOC correlates inversely with redox proxies (Th/U, V/Sc, and V/(V + Ni)), suggesting the preservation conditions (anoxia) are not the control factor of organic matters accumulation. Using these multiple approaches, our results indicate that productivity was the primary factor controlling organic matter accumulation.

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The ammonoid Gonioclymenia fauna from the Upper Devonian (upper Famennian) of western Junggar, northwestern China

Zong

Becker

2021

Geological Journal

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The Upper Devonian of western Junggar, Xinjiang, northwestern China bears abundant marine fossils and has attracted much attention with respect to palaeontological and stratigraphical studies. However, the records of ammonoids are sparse and the previously established assemblages need to be supplemented or emended through further collections. Here, we describe the Gonioclymenia fauna from the Wulan Member of the Hongguleleng Formation based on thorough and systematic sampling, including Gonioclymenia junggarensis n. sp., a member of the Gonioclymenia subcarinata Group, an evolute clymeniid, Cymaclymenia sp., and an indeterminate species of the Sporadoceratidae or Prionoceratidae. The strata bearing the Gonioclymenia fauna in western Junggar can be correlated with the upper Famennian UD V-A 2 to V-C of the Clymenia Ammonoid 'Stufe', approximately corresponding to the Bispathodus aculeatus aculeatus Conodont Zone (former Middle expansa Zone). The Gonioclymenia species from western Junggar indicate close relationships with Europe and North Africa, while the latter two regions show a higher abundance and species diversity within the genus. New specimens described here enrich the composition of the Gonioclymenia fauna of western Junggar, and shed lights on the stratigraphic correlation and subdivision of the Upper Devonian in this region at a fine resolution.

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Ichnological and sedimentological features of the Hongguleleng Formation (Devonian–Carboniferous transition) from the western Junggar, NW China

Cited by 27 publications

References 43 publications

Late Devonian benthic ostracods from western Junggar, NW China: Implications for palaeoenvironmental reconstruction

Late Devonian benthic ostracods from western Junggar, NW China: Implications for palaeoenvironmental reconstruction

An integrated approach to understanding the depositional environment and organic matter enrichment factor in Carboniferous source rocks, Junggar Basin, NW China

The ammonoid Gonioclymenia fauna from the Upper Devonian (upper Famennian) of western Junggar, northwestern China

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