Modern Stromatolites: A Review

Golubić, Stjepko

doi:10.1007/978-3-642-52335-9_23

Cited by 55 publications

(37 citation statements)

References 43 publications

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“…Microbial mat communities can develop well-layered distributions in response to vertical physicochemical gradients (e. g., Schulz, 1936;Javor and Castenholz, 1981;Nicholson et al, 1987), but this biological stratification does not appear to be the prindpal precursor to the lami nation that is preserved in lithified mats (Golubic, 1991). Early studies of present-day stromatolites and other laminated microbial deposits, such as oncoids, related layering to seasonal variations in growth and calcification (Roddy, 1915) and to the size of trapped grains and alterna tion of sediment-rich and organic-rich layers (Black, 1933).…”

Section: Introductionmentioning

confidence: 99%

Origin and significance of lamination in Lower Cretaceous stromatolites and proposal for a quantitative approach

Suárez-González

Quijada

Benito

et al. 2014

Sedimentary Geology

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Section: Introductionmentioning

confidence: 99%

Origin and significance of lamination in Lower Cretaceous stromatolites and proposal for a quantitative approach

Suárez-González

Quijada

Benito

et al. 2014

Sedimentary Geology

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“…The illuminated surface layers are dominated by microbial oxygenic and anoxigenic phototrophs, separated by a sharp oxic-anoxic boundary (Potts, 1980;Stal et al, 1985;Nicholson et al, 1987;Golubic, 1991), with chemolithotrophs distributed across this boundary (Jørgensen & Gallardo, 1999). Under stress conditions, such as fluctuations in temperature, water supply and salinity, cyanobacteria often remain unchallenged as the principal primary producers of microbial mats (Golubic, 1994;Golubic et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Cyanobacterial populations that build ‘kopara’ microbial mats in Rangiroa, Tuamotu Archipelago, French Polynesia

Richert¹,

Golubić²,

Guédès³

et al. 2006

European Journal of Phycology

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Cyanobacterial populations, the primary producers and builders of 'kopara' microbial mats were studied in four selected ponds along the rim of the Rangiroa Atoll, French Polynesia using a polyphasic approach. Seven isolates were maintained in uni-cyanobacterial cultures, characterized morphotypically and phylogenetically by evaluating sequences of the 16S rRNA gene of about 620 base pairs in length. Cyanobacteria in natural populations were analyzed microscopically, characterized morphotypically, and compared with cultured strains. Three of the isolates were identified in the field samples: Lyngbya aestuarii, Johannesbaptistia pellucida and Chroococcus submarinus were present in the mats only as minor components, whereas the species of Schizothrix that dominated the mat community could not be cultured. The sequence of Johannesbaptistia pellucida is published for the first time. The phylogenetic and taxonomic relations are discussed on the basis of a reconstructed phylogenetic tree in relation to morphotypic characters. Sequences of Kopara isolates plot separately from those cultured from the lagoon of the neighbouring atoll Tikehau, indicating a narrow niche differentiation of benthic cyanobacterial taxa. The results support the application of a polyphasic approach to characterization, ecology and diversity of cyanobacteria.

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“…That is, stromatolite columns are oriented seaward for the oncoming waves. Such a directionality is known to have formed by wave action removing out clastic sediments filled in between stromatolite columns (Golubic, 1991). Restricted occurrence of such directionality only in intertidal stromatolites also support this interpretation because an intertidal zone tends to be affected by strong wave and tide current.…”

Section: Directional Structure Of Socheong Stromatolitesmentioning

confidence: 89%

“…Organic-rich layers form when biologic factors play more important role in the course of stromatolite growth while sediment-rich layers are produced if sedimentation or precipitation rates exceed biological growth rates (Gebelein, 1969, Park, 1976Golubic, 1991). Consequently, microbial mats or bacterial films formed on sediment-water interfaces become organic-rich layers if they grow as stromatolites.…”

Section: Directional Structure Of Socheong Stromatolitesmentioning

confidence: 99%

Possibility for Heliotropism from Inclined Columns of Stromatolites, Socheong Island, Korea

Kong¹,

Lee²

2013

Journal of the Korean earth science society

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Socheong island is a unique island containing Precambrian stromatolites in South Korea. Most of Socheong stromatolites are domes and columns, occurring as 10 cm to 1 m thick stromatolite beds. Lower parts of the stromatolite beds are predominantly composed of domes, but columns increase toward the upper level of stromatolite beds. In many of the stromatolite beds, inclined columns are easily identifiable, which is generally considered as a result of heliotropism. From general lithology, sedimentary structures, inclined angles and distributional pattern, and structural deformation of sedimentary rocks of Socheong island, the inclination of Socheong stromatolites could be better interpreted as a secondary structural deformation probably after formation of stromatolite columns, rather than as a result of heliotropism. However, at this moment, we do not clearly reject heliotropism interpretation for inclined columns of Socheong stromatolites. This is because the original position of stromatolite columns could have been lost if structural deformation had affected the whole sedimentary rocks of Socheong island.

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Modern Stromatolites: A Review

Cited by 55 publications

References 43 publications

Origin and significance of lamination in Lower Cretaceous stromatolites and proposal for a quantitative approach

Origin and significance of lamination in Lower Cretaceous stromatolites and proposal for a quantitative approach

Cyanobacterial populations that build ‘kopara’ microbial mats in Rangiroa, Tuamotu Archipelago, French Polynesia

Possibility for Heliotropism from Inclined Columns of Stromatolites, Socheong Island, Korea

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