The laterally extensive upper deposits are interpreted as post-rift deposits.
The basal peaty deposits correspond to a phase influenced mainly by the groundwater table, whereas the upper deposits composed of silty organic mud indicate fluvial influence related to river overflow events.
A prominent regional reflection referred to as Reflector-c, separates in these upper deposits two sets of seismic units that have recorded major shifts in the dominant sedimentary processes, stacking patterns and paleo-environmental conditions.
The ore was easily located and worked from shallow pits and shafts, but once the usable upper deposits were removed, or if a mine shaft entered the bed too far below the surface, only unusable unconverted pyritic deposits were found.
Several aspects of the fractal methodology are discussed and some results related to the substrates and upper surface deposit profiles are presented.
We also found an exposure of the upper Ts deposit that is composed of slightly reddish clay with granule, and 20-cm-thick inclined granule bed within the clay deposit (Fig. 6c).
These had been found in a Lower Cenomanian or Upper Albian deposit in southeastern Morocco in 1971.
It contains Middle and Upper Pleistocene deposits with fossil and lithic assemblages in stratified deposits.
Actually, string-U may represent upper channel deposits, while string-V may represent crevasse splay deposits.
Upper Cretaceous deposits have yielded, besides Hesperornis and Ichthyornis and their relatives, diving birds similar to Enaliornis, other early flamingo-like birds, and species in the same suborders as gannets, ibises, rails, and shorebirds.
