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...

Bedding, also called bedclothes or bed linen, is the materials laid above the mattress of a bed for hygiene, warmth, protection of the mattress, and decorative...

meters or multiple meters thick. Sedimentary structures such as cross-bedding, graded bedding, and ripple marks are utilized in stratigraphic studies to indicate...

structure called cross-bedding. Cross-bedding is characteristic of deposition by a flowing medium (wind or water). The opposite of cross-bedding is parallel...

Hummocky cross-stratification is a type of sedimentary structure found in sandstones. It is a form of cross-bedding usually formed by the action of large...

Sand grains of quartz with hematite coating providing an orange colour Cross-bedding and scour in sandstone of the Logan Formation (Lower Carboniferous)...

types of sedimentary structures, e.g., tabular and trough cross-bedding and graded bedding. Fanglomerates are poorly sorted, matrix-rich conglomerates...

heterolithic bedding are flaser, wavy, and lenticular. Starved ripples and cross bedding with flasers can also be considered forms of heterolithic bedding. Differentiating...

surface; cross-bedding, etc. Unconformities - Clear angular unconformities provide unequivocal evidence of the relative age of two rock sequences. Cross-bedding...

are preserved in the geologic record as sandstone with large sets of cross-bedding and many reactivation surfaces. Draas are very large composite transverse...

compose them. As a result, they typically exhibit well-developed bedding or cross-bedding, close packing, and good orientation of the shell fragments. The...

Flow Regime. Ripple cross-laminae forms when deposition takes place during migration of current or wave ripples. A series of cross-laminae are produced...

perpendicular to the wind, which moves them forwards, producing the cross-bedding shown here. Seif dunes are common in the Sahara. They range up to 300 m...

have buried Pompeii. Surges are identified in the deposits by dune and cross-bedding formations, which are not produced by fallout. Another study used the...

and buried Pompeii. Surges are identified in the deposits by dune and cross-bedding formations, which are not produced by fallout. The eruption is considered...

rusty colour. Features related to deposition of the sediment include cross-bedding and ripples, analysis of which indicated deposition from broad shallow...

funneled into and through these troughs. The Wave exposes large-scale sets of cross-bedded eolian sandstone composed of rhythmic and cyclic alternating grainflow...

Turbidity currents By structure Sedimentary structures Bedforms cross-bedding duness graded bedding ripple marks Alluvial fan Alluvial river Fault Fold Paleocurrent...

Where bedding surfaces occur as cross-sections, e.g., in a 2-dimensional vertical cliff face of horizontal strata, are often referred to as bedding contacts...

sea level, causing wind blown oolite to form sand dunes with distinct cross-bedding. Overlapping dunes form oolitic ridges, which become rapidly lithified...

environment consisting of siltstones and shales with ripple marks and cross bedding, that alternated with dry tidal flats indicated by satin spar gypsum...

environmental technology, including windcatchers for passive cooling and cross ventilation, which bring the center's temperature down during hot summer...

resulting bedding is not horizontal, but dips in the direction of current flow toward deeper water. A cross-section of a delta shows the cross bedding in the...

and quartz pebbles. Deposition from moving water has resulted in the cross-bedding which is very evident in most of the outcrops. Brimham Rocks has been...

pebble/cobble-sized material with occasional boulders. Bedding may be irregular but is almost always present, and cross-bedding is common. There are various cases where...

environments supports this generalization (although cross-bedding is inclined, the overall orientation of cross-bedded units is horizontal). The principle of...

only a metre or so in height and width resembling short tombstones. A cross-bedding structure can be observed in many pinnacles where the angle of deposited...

slow-moving streams, ponds and large lakes. Evidence for this is in cross-bedding of the sediments and large numbers of fish fossils. The upper member...

with cross-bedding. The upper portion of this member is made of poorly sorted clay-rich sandstone, light olive-grey in color, that lacks cross-bedding. Most...

underlying volcanic rocks. This basal sandstone often exhibits trough-cross bedding and ripple laminations. It consists of coarse-grained pebbly sandstone...