The Company completed a column leaching test, achieving 88% gold recovery of an oxidized sample of quartzitic
footwall material collected in the pit with a head grade of 1.19 gpt.
The lithology in both aquifers is either migmatitic, gneissic, quartzitic
, or schistose.
Distribution of non-native invasive species and soil properties in proximity to paved roads and unpaved roads in a quartzitic
mountainous grassland of southeastern Brazil (rupestrian fields).
Deep wells on Dukhan and the North Field have penetrated shales and quartzitic
sandstones of the Haushi and Tawil formations (Fms), which even at depths in excess of 13,000 feet exhibited good porosity.
4 km NE from Gentio do Ouro along the road towards Central; caatinga on sand and with quartzitic
rocks and metamorphosed sandstones forming rock area with more open vegetation including extensive areas of Vellozia, approx.
 investigated the effects of moisture on two quartzitic
rock types and found that the moisture content had a major influence on the compressive strength characteristics.
Beshr, Almusallam and Maslehuddin (2003) studied the effect of four types of coarse aggregates, namely calcareous, dolomitic, quartzitic
limestone and steel slag, on compressive strength and elastic modulus of high strength concrete, and concluded that the effect of the type of coarse aggregate is more significant on the modulus of elasticity when compared to that of compressive strength.
Based on Pickett Cross-plots and various litho-logs, the transect lithology evaluated for Hangu formation consists offine to medium grained, light grey siliceous sandstone with inter-beds of shale and patches of carbonaceous claystone at the top and bottom, while the Lumshiwal formation comprises mainly of fine to medium grained, dark grey to greenish grey, quartzitic
, abrasive sandstone with carbonaceous, glauconitic shale, siltstone and sandy limestone intercalations at places.
In other cases, however, they are related to thin sandstone beds composed of fine-grained, mainly quartzitic
sandstones (>90% quartz grains).
On the aar susceptibility of granitic and quartzitic
aggregates in view of petrographic characteristics and accelerated testing, in 14th International Conference on Alkali-Aggregate Reactions in Concrete, 20- 25 May 2012, Austin, Texas, USA.
Fine aggregate used were locally sourced quartzitic
natural river sand in uncrushed form with a specific gravity of 2.65 and a maximum aggregate size of 5mm.
Interbedded in the section are tabular and laterally continuous red mudstones and claystones with interbedded tabular sandstones interpreted as lacustrine intervals, as well as significant well sorted orange quartzitic
sandstones with dune-scale cross-bedding interpreted as aeolian dunes.