Classification, formation, and transport mechanisms of mud clasts

Li, Shunli; Li, Shengli; Shan, Xin; Gong, Chenglin; Yu, Xinghe

doi:10.1080/00206814.2017.1287014

Cited by 46 publications

(22 citation statements)

References 36 publications

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“…Several physical processes can account for the failure of firmer sediments or for their differentiated attributes when alternated with softer and/or water‐impregnated deposits. The designation of aspect and end products resulting from a variety of different processes includes intraclast lag deposits, early diagenetic concretions, hiatus concretions, (lime) mud clasts, mobile rockgrounds, limestone or carbonate breccias, autoclastic breccias, unusual intraclastic limestones, autoconglomerates (Bouchette et al, ; Chen, ; Chough, Kwon, Choi, & Lee, ; Gupta, ; Hesselbo & Palmer, ; Krajewski, Olchowy, & Felisiak, ; Li et al, ; Palmer & Wilson, ; Wignall & Twitchett, ; Zatoń, ; Zatoń et al, ). Interestingly, none of these contributions mention the term “lump,” although some reported features comparable with certain aspects of the lumpy limestones here under investigation, justifying the potential of physically dominated processes to explain the presence of particular lump types.…”

Section: Discussionmentioning

confidence: 99%

“…The occurrence of isolated lithic elements in an otherwise homogeneous matrix is a rather common feature throughout the geological archive. These are commonly argued to be the result of the particular attributes of the sediments combined with the effects of physical processes acting on a variety of settings (Bouchette et al, ; Chen, ; Chough et al, ; Gupta, ; Krajewski et al, ; Li et al, ; Palmer & Wilson, ; Wignall & Twitchett, ; Zatoń, ; Zatoń et al, ). The specific cases described for very shallow, proximal, and energetic settings can here be excluded due to major differences in depositional setting (Figure b).…”

Section: Discussionmentioning

confidence: 99%

“…A detailed analysis of the lithic elements encased in ancient carbonate deposits can provide insights on depositional conditions and basin evolution by elucidating on an array of processes involved in forming and/or delivering these materials to their final destination (e.g., Alfaro et al, ; Coimbra et al, ; Coimbra, Immenhauser, & Olóriz, ; Gupta, ; Jenkyns, ; Li, Li, Shan, Gong, & Yu, ; Ungureanu et al, ). For this purpose, several aspects are typically investigated, including sedimentological analysis, macro‐ to microfacies analysis, morphometric evaluations, and geochemical composition (Bouchette, Séguret, & Moussine‐Pouchkine, ; Chen, ; Coimbra, Immenhauser, Olóriz, Rodríguez‐Galiano, & Chica‐Olmo, ; García‐García et al, ; Hesselbo & Palmer, ; Wignall & Twitchett, ).…”

Section: Introductionmentioning

confidence: 99%

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The distinctive character of lumpy limestones (Early Jurassic, Lusitanian Basin, W Portugal)

Coimbra

Duarte

2019

Geological Journal

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The distinctive character of lumpy limestones (Early Jurassic, Lusitanian Basin, W Portugal)

Coimbra

Duarte

2019

Geological Journal

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“…Also, the beds, which deposited after the intraclast-rich basal beds, typically show trough or ripple-cross stratification with set heights of 5-15 cm. Vertical orientation of rip-up clasts can be observed in matrix-rich debrites or turbidites deposited under high-energy turbulent hyperpycnal to homopycnal flow conditions (Li et al, 2017). Those are unconformably overlying lacustrine, laminated mud strata from the prodelta environment.…”

Section: Sedimentological Characteristicsmentioning

confidence: 99%

High-Resolution Analysis of the Physicochemical Characteristics of Sandstone Media at the Lithofacies Scale

Linsel¹,

Wiesler²,

Hornung³

et al. 2020

Preprint

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Abstract. The prediction of physicochemical rock properties in subsurface models regularly suffers from uncertainty observed at the sub-meter scale. Although at this scale – which is commonly termed the lithofacies scale – the physicochemical variability plays a critical role for various types of subsurface utilization, its dependence on syn- and post-depositional processes is still subject to investigation. The impact of syn- and post-depositional geological processes, including depositional dynamics, diagenetical compaction and chemical mass transfer, onto the spatial distribution of physicochemical properties in siliciclastic media at the lithofacies scale is investigated in this study. We propose a new workflow using two cubic rock samples where eight representative geochemical, thermophysical, elastic and hydraulic properties are measured on the cubes' faces and on samples taken from the inside. The scalar fields of the properties are then constructed by means of spatial interpolation. The rock cubes represent the structurally most homogeneous and most heterogeneous lithofacies types observed in a Permian lacustrine delta formation that deposited in an intermontane basin. The spatio-temporal controlling factors are identified by exploratory data analysis and geostatistical modeling in combination with thin section and environmental scanning electron microscopy analyses. Sedimentary structures are well preserved in the spatial patterns of the negatively correlated permeability and mass fraction of Fe2O3. The Fe-rich mud fraction, which builds large amounts of the intergranular rock matrix and of the pseudomatrix, has a degrading effect onto the hydraulic properties. This relationship is underlined by a zonal anisotropy that is connected to the observed stratification. Feldspar alteration produced secondary pore space that is filled with authigenic products including illite, kaolinite and opaque phases. The local enrichment of clay minerals implies a non-pervasive alteration process that is expressed by network-like spatial patterns of the positively correlated mass fractions of Al2O3 and K2O. Those patterns are spatially decoupled from primary sedimentary structures. The elastic properties, namely p- and s-wave velocity, indicate a weak anisotropy that is not inevitably oriented perpendicularly to the sedimentary structures. The multifarious patterns observed in this study emphasize the importance of high-resolution sampling in order to properly model the variability present in a lithofacies-scale system. In fact, the physicochemical variability observed at the lithofacies scale might nearly cover the global variability in a formation. Hence, if the local variability is not considered in full-field projects – where the sampling density is usually low – statistical correlations and thus conclusions about causal relationships among physicochemical properties might be feigned inadvertently.

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“…The lithology was dominated by the intercalation of calcareous sandstone and calcareous claystone (SC), grain flow, slump, and mud clast ( Figure 2). According to Li et al (2017) the mud clast can be categorized as a failure of muddy banks and transportation in the channel and the failure of muddy base and transportation of debris flows. The intercalation of calcareous sandstone and calcareous claystone which was dominated by sedimentary structures such as graded bedding, parallel lamination (Figure 2a), and convolute.…”

Section: Lithologymentioning

confidence: 99%

Sedimentation Process of Rambatan Formation in Larangan Brebes, North Serayu Range, Central Java

Astuti

Isnaniawardhani

Abdurrokhim

et al. 2019

Indonesian J. Geosci.

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Rambatan Formation in the western part of North Serayu Basin, Brebes, Central Java, comprises generally flysch facies of turbidite sediments deposited in a deep marine environment. This formation is equivalent to Merawu Formation found in the eastern part of the basin and deposited in the environment of tidal flat to subtidal. The turbidite sediments were highly controlled by a rapid downward movement taking place continuously during Early to Late Miocene. The variation of the depositional environment has been the object of this research which aims to understand the sedimentation process of Rambatan Formation in this type locality with a modern turbidite approach. Rambatan Formation was deposited in N13-N19, as a deep marine sediment channel, turbidite, and deep marine tidal zone. The sedimentation was affected by gravity flow and bottom current. The sediments on N13-N14 were marked by turbidite sediments until Middle N17. The sediment supply increased on Middle N17, as a sediment filler on a channel marked by contourite mud layer (muddy slump) and debris flow, with sources from the north. The increase of sediment supply was followed by an environmental transformation from a deep marine channel into deep marine tidal area. In N19, the sediments were redeposited as turbidite sediment, starting with debris flow in Middle N18.

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Classification, formation, and transport mechanisms of mud clasts

Cited by 46 publications

References 36 publications

The distinctive character of lumpy limestones (Early Jurassic, Lusitanian Basin, W Portugal)

The distinctive character of lumpy limestones (Early Jurassic, Lusitanian Basin, W Portugal)

High-Resolution Analysis of the Physicochemical Characteristics of Sandstone Media at the Lithofacies Scale

Sedimentation Process of Rambatan Formation in Larangan Brebes, North Serayu Range, Central Java

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