Epsilon Cross-bedding. Lateral accretion of point bars leads to epsilon cross-bedding, also known as lateral accretion surfaces. Terrestrially these beds mark depositional surfaces of point bars …
- The occurence of the large scale trough cross bedded facies are interpreted as having been pro duced by dunes migrating along the channel bot tom. The decrease in dune height reflects a grad ually decrease in paleo flow energy. The wedge shaped body of rippled sand, facies Sr, may represent a relic of an older pointbar or may simply reflect a lower...
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Cross-bedding - Wikipedia
In geology, cross-bedding, also known as cross-stratification, is layering within a stratum and at an angle to the main bedding plane. The sedimentary structures which result are roughly horizontal units composed of inclined layers. The original depositional layering is tilted, such tilting not being the result of post-depositional deformation. Cross-beds or "sets" are the groups of inclined layers, which are known as cross-strata.
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They dip in the direction of channel migration and are characterized by the epsilon cross-bedding, such as that is observed in Jezero crater, Mars (Schon et al. 2012).
Lateral Accretion Patterns - SpringerLink
Nov 20, 2015 · Lateral accretion surfaces can be considered depositional timelines. They dip in the direction of channel migration and are characterized by the epsilon cross-bedding, such as …
Epsilon cross-bedding - Oxford Reference
Epsilon cross-bedding is the type of cross-bedding formed by the lateral accretion of a river point bar. Other terms (nu, gamma, beta cross-bedding, etc.) proposed in the same scheme …
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Channel deposits. (A) Stratigraphically above the scroll …
In addition to the distinctive topographic signature of point bars (scroll bars, Fig. 12), prograding point bars also develop inclined accretion surfaces, termed epsilon cross-bedding (Allen,...
An overfilled lacustrine system and progradational delta in Jezero ...
Jul 1, 2012 · We document the presence of extensive scroll bars and epsilon cross-bedding, both indicative of meandering distributary channels that are not observed on alluvial fans but …
Porth y Mor RIGS site | GeoGuide
In ten of the Porth y Mor Formation cycles, the basal sandstone and conglomerate unit exhibits a distinctive set of shallow-dipping sigmoidal bedding surfaces. This pattern of bedding …
epsilon cross-bedding | Encyclopedia.com
Epsilon cross-bedding is the type of cross-bedding formed by the lateral accretion of a river point bar. Other terms (nu, gamma, beta cross-bedding, etc.) proposed in the same scheme …
