Marly limestone and dolomite associated with Mesozoic siliceous rocks and arenaceous
rocks form the geologic underlayer, originating mainly brown and lithic soils.
Petters, "Paralic Arenaceous
foraminifera from upper Cretaceous of the Benue Trough, Nigeria," Acta Paleont.
(iv) Tuscan and Umbria Nappe complex: Triassic-Lower Miocene arenaceous
and clayey-marly formations, calcareous-siliceous rocks, dolostone, and anhydrites.
The most widespread lithotypes are limestones and dolomites (34%), alluvial sediments and clays (22%), volcanic rocks (18%), and flysch deposits and arenaceous
assemblages (17%) (Geoportale Nazionale, 2016).
(0 to 29 m) and is described as a white, friable sandstone with well-rounded quartz grains; may contain scattered masses of calcite, celestite, and dolomite; and is interbedded with arenaceous
dolomite with bands of chert (Wolfe, 2013).
According to these authors, this suballiance should include the pioneer, acidophilous, oligotrophic communities of the Bromion erecti on marly-clayey and arenaceous
substrata; it was distinguished from the Polygalo-Bromenion BIONDI et al.
A three-fold subdivision of the Abbottabad Formation has emerged through this study; a) lower arenaceous
unit (dominantly quartzite with subordinate pebbly conglomerate sandstone and siltstone) b) middle dolomitic unit (dominantly dolomite with subordinate quartzite siltstone and conglomerate) and c) upper quartzite unit.
In its middle part greenish grey to grayish shale has two interclations of thin bedded arenaceous
unfossiliferous limestone and one medium bedded poorly fossiliferous limestone.
This area is dominated by metamorphic rock from Arenaceous
series with silt sediment which was formed in Triassic Era .
However, the firmness of these fruits was lower (below 10 N) when compared to the control 'Chiripa' peaches, which presented leatheriness (above 30 N) and were also characterized as having a dry and arenaceous
Limestone Lithofacies-5 / Arenaceous
/ Argillaceous: Grey and Ferruginous Laterite/bauxite / kaolinite lithofacies-1: In most of the laterite rocks iron bearing minerals mask the non- ferruginous minerals, thereby making estimation difficult.
Despite the fact that the sedimentary infill of the Aptian to Albian (Hell et al., 2000; Ndougsa et al., 2004) Mamfe basin is largely covered by dense forestation, the type locality on the bank of the Cross River at Mamfe town in the Republic of Cameroun reveals thickly folded and faulted series of massive arkosic sandstone and grit having intercalations of marl, arenaceous
limestone and shale (Reyment, 1965).