Titlebook: Cyclic and Event Stratification; Gerhard Einsele,Adolf Seilacher Conference proceedings 1982 Springer-Verlag Berlin Heidelberg 1982 Gebirg

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pellagra

General Remarks About the Nature, Occurrence, and Recognition of Cyclic Sequences (Periodites)f these principal mechanisms are demonstrated in sediment buildup-time curves for periodites, tempestites, turbidites, and black shales. The most prominent examples for periodites appear to be nonturbiditic pelagic to hemipelagic limestone-marl rhythms. Under favorable conditions including diageneti

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Limestone-Marl Cycles (Periodites): Diagnosis, Significance, Causes — a Reviewthe field only, if (a) the original sediment had a carbonate/clay ratio on the order of 4 and, under oxygenated conditions, if (b) the thickness of somewhat alternating beds was sufficient (5 to 10 cm) to prevent complete mixing by bioturbation. Simple models demonstrate the effect of fluctuating pr

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Observations on Well-bedded Upper Jurassic Limestonesosition of detrital clay is superimposed by a periodical changing calcium carbonate production. On this base, fused (i.e., doubled) limestone beds are recognizeable. Fusion or splitting of beds depends on the clay mineral association: where kaolinite is present, fusion occurs, and vice versa. In the

ectropion

Origin of Marl-Limestone Alternation (Oxford 2) in Southwest Germanyced due to pressure solution and the formation of marl seams. Well preserved and little compacted burrows throughout the limestone beds indicate early cementation. Weathering emphasises the differences in primary lithology.

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Ancillary

Rhythmic Sedimentation Documented in a Late Cretaceous Core (Abstract)early Turonian deposits in the Western Interior Basin of North America. The core has been cut in half, polished, and peeled, thus providing a detailed record of the large-scale bioturbation rhythms, small-scale lamination rhythms, current events, and volcanic ash falls that occur in 30 meters of the

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interpose

Diagenetic Redistribution of Carbonate, a Process in Forming Limestone-Marl Alternations (Devonian aertain features which cannot be explaned in terms of sedimentary transport alone. Three different Paleozoic environments are interpreted as produced (Letmathe sequence) or at least modified (Helle sequence, Edelburg sequence) by early diagenetic carbonate migration. Redistribution of carbonate, spec

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