These occur in thin beds exhibiting graded bedding reminiscent of placer sorting.
2.
Although graded bedding can form in many different environments, it is a characteristic of turbidity currents.
3.
In low-strain zones they preserve graded bedding, cross-bedding and heavy mineral-rich horizons.
4.
Graded bedding is a structure where beds with a smaller grain size occur on top of beds with larger grains.
5.
Classic, low-density turbidites are characterized by graded bedding, bedding, and an absence of shallow-water features ( Fairbridge, 1966 ).
6.
This resulted in layers with graded bedding, or bedding in which the larger particles are at the bottom and the smaller ones are at the top.
7.
Sedimentary structures such as cross bedding, graded bedding and ripple marks are utilized in strata in geologically complex terrains and understand the depositional environment of the sediment.
8.
The folded or deformed, recognising younging indicators or graded bedding is critical to interpretation of the sedimentary section and often the deformation and metamorphic structure of the region.
9.
They include ripple marks; mudcracked surfaces; cone-in-cone structures; interformational breccias / conglomerates; both normal and reversed small-scale, graded bedding; and local channel fills.
10.
In terms of origin and depositional mechanisms, they are closely related to sandstones and exhibit many of the same types of sedimentary structures, e . g ., tabular and trough cross-bedding and graded bedding.
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