The Precambrian igneous and metamorphic rocks are unconformably overlain by the Lower-Middle Jurassic fluvial arkosic
sandstones (Kohlan Formation), the Cretaceous continental sandstones (Tawilah Group) and the Upper Paleocene-Lower Eocene limestones (Umm Er Radhuma Formation) (As-Saruri et al., 2010; Al-Wosabi and Wasel, 2011).
The Kasangulu site is an exposure in the upper part of a quarry (Societe Generale Industrielle, SGI) where arkosic
sandstone of the Inkisi Subgroup (Paleozoic) is extracted.
Porosity reduction and major controls on diagenesis of Cretaceous-Paleocene volcaniclastic and arkosic
sandstone, Middle Park Basin, Colorado.
On the Snider Mountain Road the formation is composed of white to grey orthoquartzite and intraformational quartzite-pebble-rich conglomerate that appears to be concordantly underlain by pink feldspathic sandstone and pink to reddish arkosic
pebble conglomerate of the Grant Brook Formation.
Wilson, "Stress-dependent transport properties of fractured arkosic
sandstone," Geofluids, vol.
Haimson, "Borehole breakouts induced in Arkosic
sandstones and a discrete element analysis," Rock Mechanics and Rock Engineering, vol.
Crossplots such as RHOB/NPHI, GR-RHOB and GR-NPHI and Th-K are used for lithological identification in the studied wells indicating arkosic
and micacaeous sandstone as dominant lithology with shale.
These are local quartz arenites that are within the subarkosic to arkosic
Upper Cambrian Hickory Sandstone Member of the Riley Formation in the Llano uplift region (Kyle and McBride, 2014) (Figure 4).
The aggregate used in the preparation of geopolymers corresponds to a very coarse-grained (1.19 mm) arkosic
sand size, which presents particles predominantly non-spherical sub-angular to sub-rounded, and is composed of quartz, feldspar and lithic fragments.
* Composition: arkosic
sand (feldspar, quartz and clay)
A petrological description of tinaja and olive jar sherds from Moquegua, Peru is similar to the Red Earthenware results, both being plagioclase abundant and quartz poor, but differing in the presence of arkosic
sandstone amongst other grains (Rice pers.