Oligo-Miocene lacustrine microbial and metazoan buildups from the Limagne Basin (French Massif Central)

Roche, Adeline; Vennin, Emmanuelle; Bouton, Anthony; Olivier, Nicolas; Wattinne, Aurélia; Bundeleva, Irina; Deconinck, Jean‐François; Virgone, Aurélien; Gaucher, Éric C.; Visscher, Pieter T.

doi:10.1016/j.palaeo.2018.05.001

Cited by 25 publications

(67 citation statements)

References 98 publications

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“…The light and dark laminae in the Ebro stromatolites are, for example, equivalent to the clear and dark layers found in the stromatolites from the Limagne Basin (Bertrand‐Sarfati et al ., ). The cement‐dominated microfabrics (Roche et al ., ) found in some of the stromatolites from the Limagne Basin are similar to fibrous laminae found in the Ebro stromatolites. The composite dark dense laminae in the Ebro stromatolites are equivalent to the micrite‐dominated laminated or columnar microfabric described by Roche et al .…”

Section: Comparison With Other Lacustrine Microbialitessupporting

confidence: 70%

“…The relation between the gross morphology of stromatolites and water depth is also evident in other lacustrine (Bertrand‐Sarfati et al ., ; Casanova, ; Zamarreño et al ., ; Arenas et al ., ; Roche et al ., ) and marine successions (Andres & Reid, ; Jahnert & Collins, ; Mercedes‐Martín et al ., ; Tosti & Riding, ). Mathematical models that simulate stromatolite morphologies (Grotzinger & Rothman, ; Grotzinger & Knoll, ) have focused on some aspects of microbial growth but, as pointed out by Reid et al .…”

Section: Discussionmentioning

confidence: 99%

“…() and Roche et al . () in the same area. The major differences between Limagne Basin and Ebro Basin stromatolites are related to the height of the domes, cones and coalescent columns.…”

Section: Comparison With Other Lacustrine Microbialitesmentioning

confidence: 96%

“…The composite dark dense laminae in the Ebro stromatolites are equivalent to the micrite‐dominated laminated or columnar microfabric described by Roche et al . ().…”

Section: Comparison With Other Lacustrine Microbialitesmentioning

confidence: 97%

“…Two main characteristics can offer analogues: (i) the external morphology distribution, described by Roche et al . (); and (ii) the lamina characteristics under microscope, studied by Bertrand‐Sarfati et al . () and Roche et al .…”

Section: Comparison With Other Lacustrine Microbialitesmentioning

confidence: 99%

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Lacustrine stromatolites: Useful structures for environmental interpretation – an example from the Miocene Ebro Basin

2019

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The significance of stromatolites as depositional environmental indicators and the underlying causes of lamination in the lacustrine realm are poorly understood. Stromatolites in a ca 600 m thick Miocene succession in the Ebro Basin are good candidates to shed light on these issues because they are intimately related to other lacustrine carbonate and sulphate facies, grew under variable environmental conditions and show distinct lamination patterns. These stromatolites are associated with wave‐related, clastic‐carbonate laminated limestones. Both facies consist of calcite and variable amounts of dolomite. Thin planar stromatolites (up to 10 cm thick and less than 6 m long) occurred in very shallow water. These stromatolites represented first biological colonization after: (i) subaerial exposure in the palustrine environment (i.e. at the beginning of deepening cycles); or (ii) erosion due to surge action, then coating very irregular surfaces on laminated limestones (i.e. through shallowing or deepening cycles). Sometimes they are associated with evaporative pumping. Stratiform stromatolites (10 to 30 cm high and tens of metres long) and domed stromatolites (10 to 30 cm high and long) developed in deeper settings, between the surge periods that produced hummocky cross‐stratification and horizontal lamination offshore. Changes in stromatolite lamina shape, and thus in the growth forms through time, can be attributed to changes in water depth, whereas variations in lamina continuity are linked to water energy and sediment supply. Growth of the stromatolites resulted from in situ calcite precipitation and capture of minor amounts of fine‐grained carbonate particles. Based on texture, four types of simple laminae are distinguished. The simple micrite and microsparite laminae can be grouped into light and dark composite laminae, which represent, respectively, high and low Precipitation/Evaporation ratio periods. Different lamination patterns provide new ideas for the interpretation of microbial laminations as a function of variations in climate‐dependent parameters (primarily the Precipitation/Evaporation ratio) over variable timescales.

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Section: Comparison With Other Lacustrine Microbialitessupporting

confidence: 70%

Section: Discussionmentioning

confidence: 99%

“…() and Roche et al . () in the same area. The major differences between Limagne Basin and Ebro Basin stromatolites are related to the height of the domes, cones and coalescent columns.…”

Section: Comparison With Other Lacustrine Microbialitesmentioning

confidence: 96%

“…The composite dark dense laminae in the Ebro stromatolites are equivalent to the micrite‐dominated laminated or columnar microfabric described by Roche et al . ().…”

Section: Comparison With Other Lacustrine Microbialitesmentioning

confidence: 97%

Section: Comparison With Other Lacustrine Microbialitesmentioning

confidence: 99%

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Lacustrine stromatolites: Useful structures for environmental interpretation – an example from the Miocene Ebro Basin

2019

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A multi‐scale approach to laminated microbial deposits in non‐marine carbonate environments through examples of the Cenozoic, north‐east Iberian Peninsula, Spain

Arenas‐Abad

2021

The Depositional Record

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This contribution focusses on stromatolites and oncolites as tools to seek diverse environmental and climate information at different temporal scales. The scales are: (a) Low frequency, dealing with macroscopic and megascopic scales, and (b) high frequency, involving calendar and solar frequency bands. Two depositional environments are used for this purpose: (a) Fluvial and fluvial–lacustrine, which can develop under high to moderate gradients, and in low‐gradient conditions, and (b) lacustrine, subject to low‐gradient, hydrologically closed lake conditions. Several current and ancient examples in the Iberian Peninsula allow high‐frequency and low‐frequency analyses. Within the wedge‐shaped depositional units that fill the high‐ to moderate‐gradient, stepped fluvial systems, stromatolites form half domes and lenticular bodies, commonly at the wedge front. Oncolites are uncommon. These stromatolites developed in moderate to fast‐flowing water in stepped cascades and rapids. Their geometry and extent reflect the topography of the bedrock and later ongoing growth. In low‐gradient fluvial and fluvial‐(open) lacustrine systems the depositional units are tabular, low‐angle wedge‐shaped and lenticular and have great spatial facies variability. The dominant oncoid and coated‐stem limestones form gently lenticular stacked bodies, developed in wide, low to high‐sinuosity channels within wide tufaceous palustrine areas and small lakes. In the Ebro Basin saline carbonate lacustrine systems, stromatolites form thin planar to domed and stratiform bodies and are associated with muddy‐grainy laminated carbonates and very rare oncolites, together forming ramp‐shaped units that represent the inner fringes of high lake‐level deposits. This geometry reflects low‐gradient lake surface and shallow water conditions. Textural and structural features allow different ranks of laminae and types of lamination to be distinguished. Texture, together with the δ13C and δ18O values of consecutive laminae, are useful in distinguishing environmental and climate changes operating over different time spans. Periodicity analysis of lamination can help to discern any temporal significance in the lamination.

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Reconstruction of the Late Miocene to Pliocene continental succession of Samos Island: Palaeoenvironmental implications for the Eastern Aegean domain

Hamon,

Deschamps,

Gorini

et al. 2023

The Depositional Record

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On the Island of Samos (East Aegean region, Greece), two sedimentary basins are filled by thick continental series dated to the Late Miocene to Early Pliocene. A multi‐disciplinary study has been performed including 1) the definition of 21 sedimentary facies, 2) a review of the biological components and 3) carbon, oxygen and strontium stable isotope analyses. The succession is characterised by various depositional settings and hydrochemical compositions. Five main stages of basin evolution have been identified: 1) The Late Serravalian is marked by the development of alluvial fans and fan delta; 2) during the Lower Tortonian, isolated shallow lakes with variable salinity, from fresh to brackish, developed under warm and relatively humid conditions; 3) the Middle to Upper Tortonian is marked by the development of a large and deep lake with saline and alkaline waters, under colder and drier conditions; 4) the Latest Tortonian to Messinian period is represented by an ephemeral alluvial system, developed under a dry climate; 5) during the Zanclean, a palustrine and paludal wetland system, dominated by tufa carbonates, developed under moderately humid conditions. This succession is of particular interest for the reconstruction of the palaeoenvironmental evolution of the transition zone between the Mediterranean domain, and the Paratethys and circum‐Paratethys areas. The geochemical data and the presence of flora (diatoms) and fauna (gastropods) of marine affinity suggest transient ingressions of marine‐related water or groundwater inflows as early as the Lower Tortonian. The Samos succession records the complex interaction between the regional geodynamics and climate. The extensional regime of the Eastern Aegean zone generates subsidence, interrupted in the mid‐Tortonian (9 Ma) by a brief compressive event and a major exposure of the basins. Furthermore, the Late Miocene progressive aridification, followed by a change to a more humid climate (Pliocene) is also a major driver of the sedimentation.

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Oligo-Miocene lacustrine microbial and metazoan buildups from the Limagne Basin (French Massif Central)

Cited by 25 publications

References 98 publications

Lacustrine stromatolites: Useful structures for environmental interpretation – an example from the Miocene Ebro Basin

Lacustrine stromatolites: Useful structures for environmental interpretation – an example from the Miocene Ebro Basin

A multi‐scale approach to laminated microbial deposits in non‐marine carbonate environments through examples of the Cenozoic, north‐east Iberian Peninsula, Spain

Reconstruction of the Late Miocene to Pliocene continental succession of Samos Island: Palaeoenvironmental implications for the Eastern Aegean domain

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