Storms and Storm Deposits

Myrow, Paul M.

doi:10.1016/b978-0-12-409548-9.09736-0

Cited by 2 publications

(3 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A). This hypothesis is rejected because of: (i) the lack of diagnostic physical sedimentary structures for shelly tempestites (Einsele & Seilacher, ; Einsele, ; Flügel, ; Roetzel & Pervesler, ; Myrow, ); and (ii) the absence in nearly all pavements of other taxa that are abundant or dominant in more proximal environments of the depositional profile. An allochthonous concentration would consist of a mixture of taxa entrained and mixed up from different habitats (Leighton & Schneider, ).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

High‐frequency cycles of brachiopod shell beds on subaqueous delta‐scale clinoforms (early Pliocene, south‐east Spain)

García‐Ramos

Zuschin

2019

Sedimentology

View full text Add to dashboard Cite

During the early Pliocene, subaqueous delta-scale clinoforms developed in the Aguilas Basin, in a mixed temperate carbonate-siliciclastic system. The facies distribution is consistent with the infralittoral prograding wedge model. Stacking patterns and bounding surfaces indicate that the clinoforms formed during the highstand and falling sea-level stages of a high rank cycle. Twenty-two prograding clinothems were recognized over a distance of ≥1 km. Biostratigraphic data indicate a time span shorter than 700 kyr for the whole unit (MPl3 biozone of the Mediterranean Pliocene). Cyclic skeletal concentrations and occasional biostromes of suspension feeders (terebratulid brachiopods, modiolid bivalves and adeoniform bryozoan colonies), slightly evolved glauconite and occasional Glossifungites ichnofacies formed on the clinoforms during high-frequency pulses of relative sea-level rise. During such stages, increased accommodation space in the topsets of the clinoforms caused a strong reduction of terrigenous input into the foresets and bottomsets. This provided favourable conditions for the development of these suspension feeder palaeocommunities. During stillstand stages, however, reduced accommodation space in the topsets eventually resumed progradation in the foresets. There, the abundance of Ditrupa tubes indicates frequent siltation events that extirpated the terebratulid populations and other epifaunal suspension feeders in the foreset and bottomset subenvironments. The occurrence of shell beds on the clinoforms suggests that this case study represents lower progradation rates than standard examples where shell beds bound the clinobedded units at their base and top only. Importantly, the distributions of biofacies and ichnoassemblage associations contribute significantly to the understanding of the effects of relative sea-level fluctuations on the evolution of subaqueous delta-scale clinoform systems.

show abstract

Section: Discussionmentioning

confidence: 99%

“…K) indicates storm deposition events (e.g. Myrow, ) in the offshore transitional zone (Dumas & Arnott, ). The occurrence of sporadic densely packed lenticular shell beds (Fig.…”

Section: Description Of Faciesmentioning

confidence: 99%

High‐frequency cycles of brachiopod shell beds on subaqueous delta‐scale clinoforms (early Pliocene, south‐east Spain)

García‐Ramos

Zuschin

2019

Sedimentology

View full text Add to dashboard Cite

show abstract

“…Pre vi ous in ter pre ta tions of an cient lacus trine tempestites have mostly been based on the rec og ni tion of hummocky cross-strat i fi ca tion (Green wood and Sherman, 1986;Hamblin, 1992;Liu et al, 2012;Zhang et al, 2018). However, storm de pos its may also show ero sive sur faces, graded bed ding, par al lel bed ding, wave-gen er ated cross-bed ding, shell beds and biogenic es cape struc tures (Harms et al, 1975;Hamblin and Walker, 1979;Allen, 1982;Dott and Bour geois, 1982;Walker et al, 1983;Myrow and Southard, 1996;Myrow, 2005;Morsilli and Pomar, 2012;Alván and Von Eynatten, 2014;Li et al, 2016;Puga-Bernabéu and Aguirre, 2017;Üner, 2018).…”

Section: Introductionmentioning

confidence: 99%

First record of tempestites from Quaternary lacustrine deposits in the Ağrı Basin (Eastern Anatolia, Türkiye): palaeoclimatological and palaeogeographic implications

Üner

2023

View full text Add to dashboard Cite

Several event layers have been identified in lacustrine deposits in the AErI Basin of Anatolia (E Türkiye). Sedimentological and palaeontological data newly indicate a storm-induced origin for some of them. The sedimentary structures in three sections, a few tens of metres apart from each other laterally, such as hummocky cross-stratification, wave-generated cross-bedding, parallel bedding, erosional surfaces, and graded bedding, which are considered characteristic of tempestites, are clearly present. Additionally, fining-upwards units and biogenic escape structures located at different levels of these sections indicate a similar origin. The vertical variations in layer thickness, grain size, and sedimentary structures in these sedimentary sections indicate fluctuating hydrodynamic conditions during deposition, while lateral decrease in the size and wavelength of the structures reflects deepening. This interpretation of storm-induced deposition is compatible with regional palaeoclimatological and palaeogeographical data, and is supported by evidence of Quaternary storm-induced sedimentation in adjacent lacustrine basins in the region

show abstract

Storms and Storm Deposits

Cited by 2 publications

References 42 publications

High‐frequency cycles of brachiopod shell beds on subaqueous delta‐scale clinoforms (early Pliocene, south‐east Spain)

High‐frequency cycles of brachiopod shell beds on subaqueous delta‐scale clinoforms (early Pliocene, south‐east Spain)

First record of tempestites from Quaternary lacustrine deposits in the Ağrı Basin (Eastern Anatolia, Türkiye): palaeoclimatological and palaeogeographic implications

Contact Info

Product

Resources

About