Provenance Analyses of Lower Cretaceous Strata in the Liupanshan Basin: From Paleocurrents Indicators, Conglomerate Clast Compositions, and Zircon U-Pb Geochronology

Zhao, Xiaochen; Liu, Chiyang; Wang, Jianqiang; Luo, Wei; Du, Fangpeng; Ma, Li

doi:10.1007/s12583-020-1324-8

Cited by 15 publications

(4 citation statements)

References 39 publications

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“…5). Abundant intermediate-acidic rocks exposed in eastern Qilian and western Qinling areas (southwestern to the study area), which has been con rmed to be the provenance of the Sanqiao-Heshangpu formations of the Liupanshan Basin (Zhao et al 2020). In addition, the detrital zircon ages distributions of Liwaxia and Madongshan formations are consistent with the those of the eastern Qilian and western Qinling orogens (Ning 2017).…”

Section: Type Of Source Rocksmentioning

confidence: 76%

“…The basin is now featured by an arcuate tectonic belt and a series depressions and uplifts distribution along the arcshaped faults under the regional compressions. The Liupanshan area underwent multiple tectonic events during the Phanerozoic, characterised by complex structure characteristics and multiperiod stratigraphical break (Liu et al 2005;Zhao et al 2020). The early evolution of this area was controlled by the evolution of Paleo-Qilian Ocean (Zhao et al 2016), while transformed to an intracontinental setting in the Early Mesozoic (Darby and Ritts 2002), and has close relationship with the Ordos Basin (Bai et al 2006;Liu et al 2006;Zhao et al 2006).…”

Section: Geological Backgroundmentioning

confidence: 99%

“…9). Semi-deep lake/deep lake facies deposits are mainly developed in the whole region (Zhao et al 2020). In addition, the Madongshan period was the main stage of organic carbon burial in the Liupanshan basin.…”

Section: Reconstruction Of the Paleoclimate Evolution Model Of The Li...mentioning

confidence: 99%

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Terrestrial records of the Early Cretaceous paleoclimate changes in the Liupanshan Basin, NW China: Evidence from sedimentology and geochemistry

Dong

Zhao

Pang³

et al. 2023

Preprint

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The Early Cretaceous paleoclimate has significant influence on global ecosystem and abundant clues were recorded in both marine and terrestrial sediments. However, much less studies were conducted on the terrestrial strata than the marine strata, leading to the significance of the Early Cretaceous paleoclimate in terrestrial systems is currently unclear. In this study, we present the terrestrial sedimentary characteristics and geochemical data of the upper member of the Lower Cretaceous Liupanshan Group (Liwaxia, Madongshan and Naijiahe formations) in the Liupanshan Basin (North China) and revealed the evolution of paleoenvironment and paleoclimate recorded in the terrestrial lake. The results show that the total REE concentrations of samples from these formations range from 79.94 to 195.54 ppm, 76.94 to 162.37 ppm, and 30.06 to 205.78 ppm, respectively. All samples display obvious negative Eu anomaly and negligible Ce anomaly with the enrichment of LREE and depletion of HREE. These mudstones were rich in Na2O, TFe2O3 and several trace elements (e.g., Ba, Sr, and Rb) and depleted in other elements (e.g., Al2O3, CaO, Th, Zr, and Hf,). The major element composition and other geochemical indicators (e.g., CIA) indicate that the collected mudstones have experienced weak weathering during transportation. Based on the geochemical characteristics, the source of the Liwaxia-Naijiahe Formation has a felsic provenance, derived from the predominantly acidic magmatic rocks in the Qinling-Qilian Orogenic Belt. Multiple geochemical indicators show that the Liwaxia Formation was deposited in a semiarid-arid, anoxic, and low-moderate salinity environment, while the Madongshan-Naijiahe Formation were deposited an arid, anoxic, and high salinity environment. As a typical terrestrial salified lake in North China, the salinization of the sedimentary water bodies and the formation of black shales in the Madongshan-Naijiahe Formation might be related to an oceanic anoxic event in the hothouse climate in the Early Cretaceous.

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Section: Type Of Source Rocksmentioning

confidence: 76%

Section: Geological Backgroundmentioning

confidence: 99%

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Terrestrial records of the Early Cretaceous paleoclimate changes in the Liupanshan Basin, NW China: Evidence from sedimentology and geochemistry

Dong

Zhao

Pang³

et al. 2023

Preprint

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“…

Palaeocurrent analysis is an important tool for basin analysis (Potter & Pettijohn, 2012) in the reconstruction of sediment-routing systems (Jipa & Olariu, 2013) and for provenance analysis (Amajor, 1987;Zhao et al, 2020). In addition, palaeocurrent directions can be crucial for interpreting the depositional environment of a sedimentary deposit (e.g.

…”

mentioning

confidence: 99%

New palaeocurrent analysis approach from two‐dimensional trough cross‐strata using photographs and anisotropy of magnetic susceptibility

Maars,

van Dijk,

Dekkers

et al. 2024

The Depositional Record

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Palaeocurrent analysis is vital for basin analysis and helps in the interpretation of depositional environments (along‐slope or downslope). For that, it is crucial to have multiple measuring methods at hand to apply palaeocurrent analysis with a wide range of different datasets (outcrops, cores and photographs). Here, two relatively underexploited palaeocurrent measurement techniques are assessed when applied to trough cross‐stratification observed in the Arenazzolo Formation at Eraclea Minoa (Sicily). The first technique is a novel design of a qualitative approach to infer palaeocurrent directions from photographs of two‐dimensional sedimentary structures. The second technique involves measurements of the anisotropy of magnetic susceptibility from drilled samples. A broad agreement, with overlapping uncertainty boundaries, is observed between results from both techniques. This agreement validates the use of trough cross‐strata to infer palaeocurrent directions. Moreover, the addition of photographs improves reproducibility and prevents a bias towards the best‐exposed troughs. The application of both techniques to outcrops and sedimentary cores provides new opportunities for palaeocurrent analysis in any type of sedimentary environment.

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Mesozoic Tectonothermal Evolution of the Southern Central Asian Orogenic Belt: Evidence from Apatite Fission-Track Thermochronology in Shalazha Mountain, Inner Mongolia

et al. 2023

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Provenance Analyses of Lower Cretaceous Strata in the Liupanshan Basin: From Paleocurrents Indicators, Conglomerate Clast Compositions, and Zircon U-Pb Geochronology

Cited by 15 publications

References 39 publications

Terrestrial records of the Early Cretaceous paleoclimate changes in the Liupanshan Basin, NW China: Evidence from sedimentology and geochemistry

Terrestrial records of the Early Cretaceous paleoclimate changes in the Liupanshan Basin, NW China: Evidence from sedimentology and geochemistry

New palaeocurrent analysis approach from two‐dimensional trough cross‐strata using photographs and anisotropy of magnetic susceptibility

Mesozoic Tectonothermal Evolution of the Southern Central Asian Orogenic Belt: Evidence from Apatite Fission-Track Thermochronology in Shalazha Mountain, Inner Mongolia

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