Modern freshwater microbial carbonates: thePhormidium stromatolites (tufa-travertine) of southeastern Burgundy (Paris Basin, France)

Freytet, Pierre; Plet, Alert

doi:10.1007/bf02546166

Cited by 88 publications

(67 citation statements)

References 52 publications

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“…Kano et al (2003) hypothesise that the observed layering results from seasonal changes in precipitation rate, with dense light-coloured layers forming in summer-autumn, and porous dark-coloured layers in winterspring. Reversed seasonal patterns have been observed by other authors in Europe, where water fl ow and growth characteristics may be different (Pentecost and Spiro, 1990;Freytet and Plet, 1996;Janssen et al, 1999;. In European examples, a porous layer of micrite is precipitated around the growing fi laments during spring and summer (see Figure 6.7D).…”

Section: Macro-and Micromorphological Characteristicsmentioning

confidence: 62%

Tufa and Travertine

Viles¹,

Pentecost²

2007

Geochemical Sediments and Landscapes

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Section: Macro-and Micromorphological Characteristicsmentioning

confidence: 62%

Tufa and Travertine

Viles¹,

Pentecost²

2007

Geochemical Sediments and Landscapes

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“…6 illustrates the accretion mechanism of a modern cm-size Scytonema knob at microscopic scale. The lamination observed in these knobs results from changes in filament growth orientation that are seasonally-driven (Monty, 1976;Monty and Hardie, 1976;Freytet and Plet, 1996). Horizontal filament growth (stage 1) is characterized by a large amount of carbonate precipitation (micritic microfabric with ghosts of horizontally oriented filaments, Fig.…”

Section: Modern Stromatolitesmentioning

confidence: 99%

Translation of energy into morphology: Simulation of stromatolite morphospace using a stochastic model

Dupraz

Pattisina

Verrecchia

2006

Sedimentary Geology

102

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Stromatolites are examples of an iterative system involving radiate accretive growth of microbial mats, biofilm and/or minerals that result from interaction between intrinsic and extrinsic factors, which progressively shape the final morphology. These interactions can neither be easily described by simple mathematical equations, nor by simple physical laws or chemical reactions. Therefore, a holistic approach that will reduce the system to a set of variables (which are combinations of natural variables) is proposed in order to create virtual morphologies which will be compared with their natural counterparts. The combination of both Diffusion Limited Aggregation (DLA) and cellular automata (CA) allows the exploration of the stromatolite morphological space and a representation of the intrinsic and extrinsic factors responsible for natural stromatolite morphogenesis. The holistic approach provides a translation in simple parameters of (1) the way that energy, nutrients and sedimentary particles reach the active surface of a future build-up, (2) how these elements are distributed and used in order to create morphology, and (3) how simple environmental parameters, such as sedimentation, can disturb morphogenesis. In addition, most Precambrian stromatolite morphologies that are impossible to produce with numerical modeling such as the Kardar-Parisi-Zhang (KPZ) equation can be simulated with the DLA-CA model and this, with a minimum set of variables.

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“…While this morphotaxon has no biological significance (Freytet 1997) B. arvenensis is thought to represent the modern cyanobacterial genera Phormidium and Schizothrix (Freytet, 1998). These are known to constitute an algal biocenose where one is predominant during spring and the other during autumn, generating alternating laminae (Freytet, 1992;Freytet and Plet, 1996). It is thus inferred that the tufa stromatolite laminae formed under seasonal conditions.…”

Section: Seasonal Control Of Lamina Microfaciesmentioning

confidence: 99%

“…10 have typically been shown to correspond to autumn/winter and spring/summer conditions respectively (Freytet, 1990;Freytet and Plet, 1996;Janssen et al, 1999), possibly resulting from the "autumn-winter bias" of meteoric recharge (Kano et al 2003).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

High-resolution δ18O seasonality record in a French Eemian tufa stromatolite (Caours, Somme Basin)

Dabkowski

Royle

Antoine

et al. 2015

Palaeogeography, Palaeoclimatology, Palaeoecology

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Recent and sub-recent laminated tufa stromatolites can contain high resolution δ 18 O records of in stream temperature change. Fossil tufa stromatolites are therefore key targets for reconstructing terrestrial palaeoclimatic, but so far only a few examples have been published.In this research we studied a 2.5 cm-radius tufa stromatolite from the Eemian of the Somme Basin, Northern France. We show; (1) that high resolution sampling of fossil laminated tufas is highly reproducible. We demonstrate; (2) that within the limitations of the δ 18 O method, NW European Eemian seasonality was essentially similar to the present day. Perhaps most important we show; (3) that precise observations from thin section that match the position of 1 Present address: GéoArchÉon, 30 rue de la Victoire, 55210 Viéville-sous-les-Côtes, France A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT

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Modern freshwater microbial carbonates: thePhormidium stromatolites (tufa-travertine) of southeastern Burgundy (Paris Basin, France)

Cited by 88 publications

References 52 publications

Tufa and Travertine

Tufa and Travertine

Translation of energy into morphology: Simulation of stromatolite morphospace using a stochastic model

High-resolution δ18O seasonality record in a French Eemian tufa stromatolite (Caours, Somme Basin)

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