Fluvial styles, palaeohydrology and modern analogues of an exhumed, Cretaceous fluvial system: Cerro Barcino Formation, Cañadón Asfalto Basin, Argentina

Foix, Nicolás; Allard, José Oscar; Paredes, José Matildo; Giacosa, Raúl Eduardo

doi:10.1016/j.cretres.2011.11.010

Cited by 29 publications

(24 citation statements)

References 24 publications

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“…Additionally, the uniform feature width across preservation states (negative to positive relief) is instructive in assessing former flow geometry. Importantly, careful consideration of the fluvial system (e.g., lateral channel migration) and preservation (e.g., erosion resulting in underestimate) must be contemplated before adopting the landform width as the flow conduit width (Cardenas & Mohrig, ; Foix et al, ; Hayden et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…Martian “inverted channels” resemble terrestrial fossilized paleofluvial channels (Foix et al, ; Maizels ; Martinez et al, ; Pain & Ollier, ; Williams et al, ), and are identified by their sinuous and/or branching planimetric pattern, continuity relationships with valley networks, and geologic context (e.g., distributary channels on alluvial fans). FSRs on Mars range in scale from large‐scale landforms identified in Viking images (10–200 km long, 0.3 to 3 km wide; Howard, ; Kargel & Strom, ) to fine‐scale bifurcating ridges (few hundred meters long, few tens of meters wide; Burr et al, , ; Davis et al, ; Williams & Edgett, ; Williams et al, ).…”

Section: Introductionmentioning

confidence: 99%

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Thermophysical Properties of Martian Fluvial Sinuous Ridges: Inferences on “Inverted Channel” Induration Agent

Williams

Moersch

Fergason

2018

Earth and Space Science

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In denuded landscapes, terrestrial inverted fluvial landforms are preferentially preserved due to their greater resistance to erosion from clast armoring, lava infilling, or cementation. These induration agents have differing material properties that should influence the thermal response of the surface. Using thermal inertia derived from 2001 Mars Odyssey Thermal Emission Imaging System (THEMIS) data, we find that the thermophysical contrast for 20 large "inverted channels" on Mars is comparable or elevated in comparison to nearby well-indurated materials. The fluvial sinuous ridge (FSR) thermal signature, together with regional geology and morphology attributes, leads us to disfavor clast armoring as an induration agent for most Martian FSRs. The available evidence is consistent with cementation as the most likely induration agent for FSRs, although lava infilling is a plausible explanation especially for instances of nearby volcanic edifices. FSR cementation, probably by near-surface solute-rich groundwater, extends aqueous processes beyond the period of widespread fluvial activity. Future work on the temporal response of the surfaces of inverted channels has the potential to further test the inferred induration mechanism and potentially constrain the grain size distribution.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermophysical Properties of Martian Fluvial Sinuous Ridges: Inferences on “Inverted Channel” Induration Agent

Williams

Moersch

Fergason

2018

Earth and Space Science

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“…Basin, Argentina (Foix et al, 2012). As a result, determining the internal structure of point bars has been attempted on modern systems where imaging can be attempted using seismic or ground penetrating radar (Bridge et al, 1995) but this, in turn, is typically constrained to thinner point bars that can be imaged in their entirety.…”

Section: Mega-point Barsmentioning

confidence: 99%

“…This means that in order to understand the life cycle of an entire point bar it is necessary to core and image the interior to determine how the river flow evolution has affected sediment type and grain‐size characteristics. This is typically hard to do because few ancient examples provide exposure in depth and planform and those that do are mostly much smaller scale systems, for example, the Scalby Formation in the UK (Ghinassi & Ielpi, ), the Ferron Sandstone of Utah (Wang & Bhattacharya, ), the Caspe Formation of the Ebro Basin, Spain (Cuevas Martinez et al ., ) and the Cerro Bacino Formation of the Canadon Asfalto Basin, Argentina (Foix et al ., ). As a result, determining the internal structure of point bars has been attempted on modern systems where imaging can be attempted using seismic or ground penetrating radar (Bridge et al ., ) but this, in turn, is typically constrained to thinner point bars that can be imaged in their entirety.…”

Section: Introductionmentioning

confidence: 99%

Grain‐size variability within a mega‐scale point‐bar system, False River, Louisiana

et al. 2018

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Point bars formed by meandering river systems are an important class of sedimentary deposit and are of significant economic interest as hydrocarbon reservoirs. Standard point‐bar models of how the internal sedimentology varies are based on the structure of small‐scale systems with little information about the largest complexes and how these might differ. Here a very large point bar (>25·0 m thick and 7·5 × 13·0 km across) on the Mississippi River (USA) was examined. The lithology and grain‐size characteristics at different parts of the point bar were determined by using a combination of coring and electrical conductivity logging. The data confirm that there is a general fining up‐section along most parts of the point bar, with a well‐defined transition from massive medium‐grained sands below about 9 to 11 m depth up into interbedded silts and fine–medium sand sediment (inclined heterolithic strata). There is also a poorly defined increase in sorting quality at the transition level. Massive medium sands are especially common in the region of the channel bend apex and regions upstream of that point. Downstream of the meander apex, there is much less evidence for fining up‐section. Finer sediment accumulated more readily after the establishment of a compound bar in the later stages of construction, at the terminal apex and in the bar tail. This work implies that the best reservoir sands are likely to be located in the centre of the point bar, deposited in a simple bar system. Reservoir quality decreases towards the bar edge. The early‐stage channel plug is largely composed of coarsening‐upward cycles of silt to clay and is dominated by clay and clayey silt material with poor reservoir characteristics.

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“…By contrast, although ancient outcrop successions reveal vertical and lateral relationships between accumulated lithofacies, these successions cannot usually be directly related to the original planform morphologies of the preserved point-bar elements in which they are contained. A small number of exceptional outcrops expose both vertical and horizontal sections (e.g., Edwards et al, 1983;Foix et al, 2012;Smith, 1987), but even these are fragmentary 'windows' that reveal only a minor part of large and complex 3D geological bodies.…”

Section: Introductionmentioning

confidence: 99%

A 3D forward stratigraphic model of fluvial meander-bend evolution for prediction of point-bar lithofacies architecture

Yan

Mountney

Colombera

et al. 2017

Computers & Geosciences

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Cite this article as: Na Yan, Nigel P. Mountney, Luca Colombera and Robert M. Dorrell, A 3D forward stratigraphic model of fluvial meander-bend evolution for prediction of point-bar lithofacies architecture, Computers and Geosciences, http://dx.doi.org/10.1016/j.cageo.2017.04.012 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Fluvial styles, palaeohydrology and modern analogues of an exhumed, Cretaceous fluvial system: Cerro Barcino Formation, Cañadón Asfalto Basin, Argentina

Cited by 29 publications

References 24 publications

Thermophysical Properties of Martian Fluvial Sinuous Ridges: Inferences on “Inverted Channel” Induration Agent

Thermophysical Properties of Martian Fluvial Sinuous Ridges: Inferences on “Inverted Channel” Induration Agent

Grain‐size variability within a mega‐scale point‐bar system, False River, Louisiana

A 3D forward stratigraphic model of fluvial meander-bend evolution for prediction of point-bar lithofacies architecture

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