Journal ArticleDOI
Tidal deposits from the Archaean Moodies Group, Barberton Mountain Land, South Africa
TLDR
In this article, a palaeoenvironmental synthesis of the facies relationships indicates that back-barrier tidal flats occurred lateral to a non-barred estuary, and two subfacies are recognized within the medium-to-fine-grained sandstones.About:
This article is published in Sedimentary Geology.The article was published on 1977-06-01. It has received 64 citations till now. The article focuses on the topics: Facies & Sedimentary structures.read more
Citations
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Geological constraints on the Precambrian history of Earth's rotation and the Moon's orbit
TL;DR: For example, in this paper, the authors used sedimentary cyclic rhythmites of tidal origin, i.e., stacked thin beds or laminae usually of sandstone, siltstone, and mudstone that display periodic variations in thickness reflecting a strong tidal influence on sedimentation, to provide information on Earth's paleorotation and the evolving lunar orbit for Precambrian time (before 540 Ma).
Journal ArticleDOI
Precambrian clastic sedimentation systems
P.G. Eriksson,Kent C. Condie,Henrik Tirsgaard,Wulf Mueller,Wladyslaw Altermann,Andrew D. Miall,Lawrence B. Aspler,Octavian Catuneanu,Jeffrey R. Chiarenzelli +8 more
TL;DR: The unique and evolving nature of the Precambrian geological environment in many ways was responsible for significant differences between precambrian clastic sedimentary deposits and their Phanerozoic-modern equivalents as mentioned in this paper.
Journal ArticleDOI
A new window into Early Archean life: Microbial mats in Earth's oldest siliciclastic tidal deposits (3.2 Ga Moodies Group, South Africa)
TL;DR: In this article, sedimentary structures produced by ancient microbial mats in Early Archean sandstones of the 3.2 Ga Moodies Group, South Africa, differ fundamentally in appearance and genesis from early Archean stromatolites and bacterial cell fossils preserved in chert.
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Geochemical evolution of Archean shales from South Africa. I. The Swaziland and Pongola Supergroups
TL;DR: The Fig Tree Group and Moodies Group, part of the Swaziland Supergroup, are exposed in the Barberton Mountain Land and are ∼ 3.3-3.5 Ga old.
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Restricted shallow-water sedimentation of Early Archean stromatolitic and evaporitic strata of the Strelley Pool Chert, Pilbara Block, Western Australia
TL;DR: The Strelley Pool Chert as discussed by the authors is a 25m thick sedimentary unit near the top of the predominantly volcanic Warrawoona Group in greenstone belts of the eastern Pilbara Block, Western Australia.
References
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Journal ArticleDOI
A New Roundness Scale for Sedimentary Particles
TL;DR: A new roundness scale is proposed defined by six roundness classes, defined by two sets of clay models prepared to characterize each roundness class and photographed to determine the roundness of a particle by comparison.
Process Framework for Describing the Morphologic and Stratigraphic Evolution of Deltaic Depositional Systems
TL;DR: A delta is a partially subaerial, contiguous mass of sediment deposited around the point where a river enters a standing body of water as mentioned in this paper, which is the product of an interplay between fluvial sediment input and reworking of sediment by marine or lacustrine processes.
Journal ArticleDOI
Water escape structures in coarse-grained sediments
TL;DR: Water escape structures as discussed by the authors represent both the direct rearrangement of sediment grains by escaping fluids and the deformation of hydroplastic, liquefied, or fluidized sediment in response to external stresses.
Related Papers (5)
Depositional and tectonic setting of the Archean Moodies Group, Barberton Greenstone Belt, South Africa
Christoph Heubeck,Donald R. Lowe +1 more
Chronology of early Archaean granite-greenstone evolution in the Barberton Mountain Land, South Africa, based on precise dating by single zircon evaporation
Reassessment of Archean crustal development in the Barberton Mountain Land, South Africa, based on U‐Pb dating
Sandra L. Kamo,Donald W. Davis +1 more