Academic literature on the topic 'Precambrian cherts'

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Journal articles on the topic "Precambrian cherts"

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GarcÍa-Ruiz, Juan Manuel. "Inorganic self-organisation in precambrian cherts." Origins of Life and Evolution of the Biosphere 24, no. 6 (1994): 451–67. http://dx.doi.org/10.1007/bf01582030.

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Perry, E. C., and L. Lefticariu. "The oxygen isotopic composition of Precambrian cherts." Geochimica et Cosmochimica Acta 70, no. 18 (2006): A483. http://dx.doi.org/10.1016/j.gca.2006.06.1429.

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Robert, François. "Carbon and oxygen isotope variations in precambrian cherts." Geochimica et Cosmochimica Acta 52, no. 6 (1988): 1473–78. http://dx.doi.org/10.1016/0016-7037(88)90218-9.

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Golovenok, V. K. "PRECAMBRIAN MICROFOSSILS IN CHERTS AND THEIR BIOSTRATIGRAPHIC SIGNIFICANCE." International Geology Review 31, no. 10 (1989): 1018–24. http://dx.doi.org/10.1080/00206818909465955.

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Schwartzman, David, and Charles H. Lineweaver. "Precambrian Surface Temperatures and Molecular Phylogeny." Symposium - International Astronomical Union 213 (2004): 355–58. http://dx.doi.org/10.1017/s0074180900193532.

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The timing of emergence of major organismal groups is consistent with the climatic temperature being equal to their upper temperature limit of growth (Tmax), implying a temperature constraint on the evolution of each group, with the climatic temperature inferred from the oxygen isotope record of marine cherts. Support for this constraint comes from the correlation of Tmax with the rRNA molecular phylogenetic distance from the last common ancestor (LCA) for both thermophilic Archaea and Bacteria. In particular, this correlation for hyperthermophilic Archaea suggests a climatic temperature of ab
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Robert, François, and Marc Chaussidon. "A palaeotemperature curve for the Precambrian oceans based on silicon isotopes in cherts." Nature 443, no. 7114 (2006): 969–72. http://dx.doi.org/10.1038/nature05239.

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Marin-Carbonne, J., F. Robert, and M. Chaussidon. "The silicon and oxygen isotope compositions of Precambrian cherts: A record of oceanic paleo-temperatures?" Precambrian Research 247 (July 2014): 223–34. http://dx.doi.org/10.1016/j.precamres.2014.03.016.

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Beaumont, V., and F. Robert. "Nitrogen isotope ratios of kerogens in Precambrian cherts: a record of the evolution of atmosphere chemistry?" Precambrian Research 96, no. 1-2 (1999): 63–82. http://dx.doi.org/10.1016/s0301-9268(99)00005-4.

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Nagasawa, Hiroshi, and Kanenori Suwa. "Rare-earth concentrations in 3.5-billion-year-old Onverwacht cherts: An indicator for early Precambrian crustal environments." GEOCHEMICAL JOURNAL 20, no. 5 (1986): 253–60. http://dx.doi.org/10.2343/geochemj.20.253.

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Nagasawa, Hiroshi, and Kanenori Suwa. "Rare-earth concentrations in 3.5-billion-year-old Onverwacht cherts : An indicator for early Precambrian crustal environments." GEOCHEMICAL JOURNAL 20, no. 5 (1986): 255–60. http://dx.doi.org/10.2343/geochemj.20.255.

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Dissertations / Theses on the topic "Precambrian cherts"

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Marin, Carbonne Johanna. "Composition isotopique de l'oxygène et du silicium des cherts Précambriens : implications Paléo-environnementales." Thesis, Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL086N/document.

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Les cherts, roches siliceuses, sont souvent considérés comme des marqueurs des conditions environnementales de la Terre primitive. Ces roches sont constituées de quartz sous différentes formes dont le quartz microcristallin ou microquartz est la forme majoritaire. Le but de cette thèse est d'étudier à l'échelle micrométrique les compositions isotopiques de l'oxygène et du silicium des différentes formes de silice dans des cherts d'âges variés, allant de 3,5 à 1,9 Ga afin de mieux comprendre l'origine et le mode de formation de ces roches et d'essayer d'améliorer les reconstructions des tempéra
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Hubert, Axelle. "Chemical and mineralogical signatures of oxygenic photosynthesis in Archean and Paleoproterozoic sediments." Thesis, Orléans, 2015. http://www.theses.fr/2015ORLE2053/document.

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L’émergence des bactéries photosynthétiques oxygéniques (BPO), ou cyanobactéries, est probablement l’évènement le plus important de l’histoire de la Terre, depuis l’apparition de la vie elle-même. Par la libération d’O2 dans l’environnement, les BPO ont conduit à l’oxygénation de notre planète, jusqu’alors anoxique, et au développement de la vie complexe. Cependant, cette évolution n’est toujours pas datée. Dans cette étude, j’ai cherché à identifier des signatures chimiques spécifiques aux BPO, in situ à l’échelle du μm, dans des tapis microbien fossiles datant de 3,45 à 1,88 Ga, recouvrant a
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Al, Rajaibi Ibrahim Mohamed amur. "Origin and variability of the late Precambrian-Cambrian Athel Silicilyte, South Oman Salt Basin." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/origin-and-variability-of-the-late-precambriancambrian-athel-silicilyte-south-oman-salt-basin(4117c367-a1fa-4937-877e-d1391f95c406).html.

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The Precambrian-Cambrian Athel Silicilyte is an enigmatic chert unit of up to 390 m thick found as slabs (each slab typically 2 × 6 km across) entrapped within salt domes at a depth of 4-5 km in the South Oman Salt Basin. This formation is a prolific self-charged reservoir with high porosity (up to 34 %) and high oil saturation (80 %). Despite its economic value, the origin and the variability of this formation are not fully understood. This study therefore aims to investigate the variability and the origin (silica source and precipitation mechanism) of the Athel Silicilyte. Data obtained from
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Book chapters on the topic "Precambrian cherts"

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Perry, Eugene C., and Liliana Lefticariu. "Formation and Geochemistry of Precambrian Cherts." In Treatise on Geochemistry. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-08-095975-7.00705-1.

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Perry, E. C., and L. Lefticariu. "Formation and Geochemistry of Precambrian Cherts." In Treatise on Geochemistry. Elsevier, 2007. http://dx.doi.org/10.1016/b0-08-043751-6/07138-3.

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Zakharov, D. O., J. Marin-Carbonne, J. Alleon, and I. N. Bindeman. "10. Triple Oxygen Isotope Trend Recorded by Precambrian Cherts: A Perspective from Combined Bulk and in situ Secondary Ion Probe Measurements." In Triple Oxygen Isotope Geochemistry. De Gruyter, 2019. http://dx.doi.org/10.1515/9781501524677-011.

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