There is an overall fining upwards trend, from coarse gravel to sandstones, pebbly sandstone being common.
conglomerates and pebbly sandstone Gh, Horizontally Wood stratified fragments.
Less distinct ning upward successions, sheet-like geometry of sandstone and pebbly sandstone
imply a shallower uvial system.
Similar pebbly sandstone
and sandy conglomerate beds appear in the middle and often in the upper parts of the Middle Siwalik Subgroup in the Amlekhganj area, but the sandstones present there are more thick-bedded (multistoreyed), coarser grained, and more distinctly 'salt and pepper' typed (Tamrakar et al, 2003) compared to those of the Samari River area.
The stone is a pebbly sandstone
from the area Blausee-Mitholz.
A complete cycle starts with pebbly sandstone
accomplished by thin layer of basal conglomerate and terminates with claystone.
On Catons Island, similar fine-grained, maroon and grey green, micaceous sandstone and siltstone, maroon pebbly sandstone and conglomerate are in faulted contact with Cambrian rocks of the Saint John Group.
At the latter locality the pebbly sandstone gradationally overlies grey polymictic conglomerate containing well rounded to angular clasts of quartz, mafic and felsic volcanic rocks, granite, maroon tuff, and green, grey and maroon siltstone.
The group is divisible into two lithostratigraphic units; 1) the Late Cretaceous Ispikan group in lower part; comprising mudstone, shale, siltstone and sandstone; and 2) Palaeocene Ispikan Conglomerate in upper part; comprising very coarse pebbly sandstone and conglomerate.
2007) to represent the Late Cretaceous Ispikan formation; comprising cream, purple and varicolored mudstone, shale, siltstone and sandstone in its lower part, and Palaeocene Ispikan Conglomerate (Hunting Survey Corporation, 1961); comprising thick bedded, very coarse pebbly sandstone and conglomerate in its upper part.
The normally graded pebbly sandstone (Isp-1) is the most common facies of the Ispikan Conglomerate (Table 4; Fig.
and conglomerate beds are also present in upper part of the formation.