Microbial processes forming daily lamination in a stromatolitic travertine

Takashima, Chizuru; Kano, Akihiro

doi:10.1016/j.sedgeo.2008.06.001

Cited by 47 publications

(48 citation statements)

References 15 publications

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“…17). Takashima and Kano [48] and Takashima et al [36] found laminated iron-rich travertine with ferrihydrite, at hot springs deposits in the Shionoha region of Southwest Japan. They prove that, responsible for the precipitation of the ferrihydrite, are species of genus Siderooxidans.…”

Section: Characteristics Of Active Fe-rich Travertine Depositmentioning

confidence: 96%

Distribution, lithotypes and mineralogical study of newly formed thermogenic travertines in Northern Euboea and Eastern Central Greece

Kanellopoulos

2012

Open Geosciences

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Abstract:In the northwestern part of Euboea Island and the neighbouring part of the mainland in eastern central Greece, many hot springs exist. We collected and analysed the newly formed material around the hot springs. The samples were studied at the lab with X-Ray Diffraction, Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS). In all cases the studied materials were thermogenic travertine presenting many different lithotypes. The studied travertine deposits consist mainly of aragonite and calcite, but in some cases, as the main mineral phase, an amorphous hydrous ferric oxyhydroxide, probably ferrihydrite (creating a laminated iron-rich travertine deposit), was identified. The lithotypes that were identified were of great variety (spicular, shrubs, etc

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Section: Characteristics Of Active Fe-rich Travertine Depositmentioning

confidence: 96%

Distribution, lithotypes and mineralogical study of newly formed thermogenic travertines in Northern Euboea and Eastern Central Greece

Kanellopoulos

2012

Open Geosciences

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“…Several non-marine carbonate fabrics have been recognized in subsurface lithologies of economic interest (Harris, 2000;Shiraishi et al, 2008b;Della Porta, 2015;Ionescu et al, 2015;Wright and Barnett, 2015;Schroeder et al, 2016;Claes et al, 2017a;Mercedes-Martín et al, 2017). Furthermore, many carbonate factories in non-marine environments have been studied to understand close interactions between micro-and macrobiota (bacteria, algae, bryophytes, plants) that influence mineral precipitation processes, pore fluids and the resulting carbonate fabric (Freytet and Verrecchia, 1998;Benzerara et al, 2006;Bissett et al, 2008;Takashima and Kano, 2008;Bontognali et al, 2010;Jones, 2010;Peng and Jones, 2013;Pace et al, 2016), offering researchers the chance to improve approaches to detection of ancient and extraterrestrial life. Because diagenesis of non-marine carbonate rocks is commonly apparent, it is surprising that studies addressing the nature, distribution, processes and controls on early diagenesis of terrestrial carbonates are rather scarce (Folk and Assereto, 1976;Kendall and Iannace, 2001;Golubić et al, 2008;Armenteros, 2010;Frisia, 2015).…”

Section: Introduction: Non-marine Carbonates and Early Diagenesis?mentioning

confidence: 99%

What do we really know about early diagenesis of non-marine carbonates?

Boever

Brasier

Foubert

et al. 2017

Sedimentary Geology

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Non-marine carbonate rocks including cave, spring, stream, calcrete and lacustrine-palustrine sediments, are susceptible to early diagenetic processes. These can profoundly alter the carbonate fabric and affect paleoclimatic proxies. This review integrates recent insights into diagenesis of non-marine carbonates and in particular the variety of early diagenetic processes, and presents a conceptual framework to address them. With ability to study at smaller and smaller scales, down to nanometers, one can now observe diagenesis taking place the moment initial precipitates have formed, and continuing thereafter. Diagenesis may affect whole rocks, but it typically starts in nano-and micro-environments. The potential for diagenetic alteration depends on the reactivity of the initial precipitate, commonly being metastable phases like vaterite, Ca-oxalates, hydrous Mg-carbonates and aragonite with regard to the ambient fluid. Furthermore, organic compounds commonly play a crucial role in hosting these early transformations. Processes like neomorphism (inversion and recrystallization), cementation and replacement generally result in an overall coarsening of the fabric and homogenization of the wide range of complex, primary microtextures. If early diagenetic modifications are completed in a short time span compared to the (annual to millennial) time scale of interest, then recorded paleoenvironmental signals and trends could still acceptably reflect original, depositional conditions. However, even compact, non-marine carbonate deposits may behave locally and temporarily as open systems to crystal-fluid exchange and overprinting of one or more geochemical proxies is not unexpected. Looking to the future, relatively few studies have examined the behaviour of promising geochemical records, such as clumped isotope thermometry and (non-conventional) stable isotopes, in well-constrained diagenetic settings. Ongoing and future in-vitro and in-situ experimental approaches will help to investigate and detangle sequences of intermediate, diagenetic products, processes and controls, and to quantify rates of early diagenesis, bridging a gap between nanoscale, molecular lab studies and the fossil field rock record of non-marine carbonates.

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“…Stromat olite lamination has been examined for periodicity (e.g. Jones, 1981;Takashima and Kano, 2008;Petryshyn et al, 2012) and pattern of arrangement (e.g. Zhang et al, 1993;Batchelor et al, 2000;Dupraz et al, 2006;Wagstaff and Corsetti, 2010;Petryshyn and Corsetti, 2011;Mata et al, 2012), but quantitative analyses of stromatolite lami na thickness are not common (e.g., Komar et al, 1965;Bertrand-Sarfati, 1972;Petryshyn et aI., 2012).…”

Section: Introductionmentioning

confidence: 99%