Stromatolites and earth—sun—moon dynamics

Vanyo, James P.; Awramik, Stanley M.

doi:10.1016/0301-9268(85)90064-6

Cited by 56 publications

(28 citation statements)

References 43 publications

(43 reference statements)

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“…Such inclination was already documented from both modern (Gebelein, 1969;Hofmann, 1973;Awramik and Vanyo, 1986;Chivas et al, 1990) and fossil stromatolites (Nordeng, 1963;Vologdin, 1964;Vanyo and Awramik, 1985;Kusky and Vanyo, 1991; Williams et al, 2007). Some authors (Nordeng, 1963;Vologdin, 1964;Vanyo and Awramik, 1985;Awramik and Vanyo, 1986) insisted that inclination of columns were due to phototaxis behavior of stromatolite building microbes, a result of heliotropism. Others (Hofmann, 1973;Chivas et al, 1990 ), on the other Fig.…”

Section: Directional Structure Of Socheong Stromatolitesmentioning

confidence: 66%

“…Degree of inclination is rather constant in some stromatolite beds, but more inclined columns toward the top of the bed are also observed in other stromatolite beds. As suggested by many authors (Nordeng, 1963;Vologdin, 1964;Vanyo and Awramik, 1985;Kusky and Vanyo, 1991), such inclination of columns of Socheng stromatolite may represent heliotropism at time of stromatolite formation in ancient Korean sea.…”

Section: Discussion On Heliotropismmentioning

confidence: 88%

“…Vanyo and Awramik (1985) documented sinusoidal growth model of stromatolite columns from a columnar stromatolite (e.g., Fig. 5), Anabaria juvensis (identified by Cloud and Semikhatov in 1969), collected by Preston Cloud in 1965 from the Bitter Springs Formation of the Amadeus Basin of central Australia.…”

Section: Discussion On Heliotropismmentioning

confidence: 99%

“…Recently, more severe criticism against heliotropism from fossil stromatolites [particularly Vanyo and Awramik (1985)'s work] was raised by Williams et al (2007). With re-investigation of original samples of Vanyo and Awramik (1985) and field observation of 11 additional samples from the Amadeus Basin, they recognized that stromatolite columns were strongly branching, diverging and converging.…”

Section: Discussion On Heliotropismmentioning

confidence: 99%

“…Schematic diagram explaining (a) inclination of stromatolite columns and (b) sinusoidal growth patterns of columns as a result of heliotropism. Note that maximum light intensity is achieved at the very top of convex upward surface while minimum intensity is reached at margins of columns (modified from Vanyo and Awramik, 1985). hand, argued that column inclination can also be controlled to a great extent by local environmental conditions.…”

Section: Directional Structure Of Socheong Stromatolitesmentioning

confidence: 99%

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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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Section: Directional Structure Of Socheong Stromatolitesmentioning

confidence: 66%

Section: Discussion On Heliotropismmentioning

confidence: 88%

Section: Discussion On Heliotropismmentioning

confidence: 99%

Section: Discussion On Heliotropismmentioning

confidence: 99%

Section: Directional Structure Of Socheong Stromatolitesmentioning

confidence: 99%

See 3 more Smart Citations

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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Facies and platform development of a microbe‐dominated carbonate platform: The Zhangxia Formation (Drumian, Cambrian Series 3), Shandong Province, China

2018

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Microbial carbonate has been increasingly recognized as an important player for sediment production and building up of organosedimentary deposits. The integrated spatio‐temporal pattern of microbial facies is important for understanding carbonate production processes in a carbonate platform. This paper focuses on the sedimentary facies and development of a microbe‐dominated platform in the Cambrian North China Platform (the Zhangxia Formation of the Cambrian Series 3) in Shandong Province, China. In the entire Zhangxia platform, deposition started with oolite‐dominated shoal‐lagoon system with rare microbialites. The shoal‐lagoon system in the western part of the study area kept up with sea‐level rise and formed a flat‐topped platform, whereas that in the eastern part failed to keep up and thus drowned. The platform top then changed to a microbe‐dominated carbonate platform consisting of thrombolite, stromatolite, dendrolite, and Epiphyton framestone. The initial significant microbialites were biohermal thrombolite and dendrolites, which subsequently changed into wider biostromal forms. The morphologic change was largely due to initial rapid rise in sea level and the following deceleration. Extensive biostromes of laterally coalesced thrombolite–Epiphyton bioherms occur in the shale‐dominated eastern part. These microbialites then perished by platform‐wide drowning. The vast initial development of microbialite facies of the Zhangxia Formation in the Shandong area was important for the establishment of an extensive microbialite‐dominated carbonate factory made by combination of an absence of reef‐building metazoans and possible transition of seawater chemistry from aragonite sea to calcite sea in the Cambrian Series 3. It is comparable to the other carbonate environments lacking dominant metazoan reef builders after the mass extinctions.

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Christmas Tree Stromatolite

McMenamin

2016

Dynamic Paleontology

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Stromatolites and earth—sun—moon dynamics

Cited by 56 publications

References 43 publications

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

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

Facies and platform development of a microbe‐dominated carbonate platform: The Zhangxia Formation (Drumian, Cambrian Series 3), Shandong Province, China

Christmas Tree Stromatolite

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