In his scheme majority of the sandstone samples plot on the boundary between greywacke and litharenite
field showing a tight linear pattern (Fig.
Fine grain calcareous- ferrogenous immature feldspatic litharenite
forms the main composition of the Aitamir formation (Fig.
The voluminous litharenite
unit (HSla of Barr et al.
A logarithmic plot of Na2O/K2O and SiO2/Al2O3 ratios of 20 samples of lithofacies-3 and 4 of the Hangu Formation showed that the lithofacies were predominantly quartz arenite with subordinate quartz litharenite
The Sandy Lake Formation constitutes the upper part of the group and consists of pillow lavas with interbedded fine to coarse litharenite
of felsic volcanic derivation (locally termed 'arkose').
Prediction of engineering properties of selected litharenite
sandstone from its petrographic characteristics using correlation and multivariate statistical techniques.
0 (5 Y 5/2 to 7/2) micaceous calcite-cemented litharenite
, parallel-laminated, trough and tabular cross-bedded, with thick beds of pebble conglomerate composed of carbonate nodules, sedimentary rock fragments, and chert.
These lithofacies includeLF-1 (Sub Feldsarenite Facies) and LF-2 (Sub Litharenite
The Stirling Group consists dominantly of andesitic to basaltic lapilli turf, litharenite
, and siltstone, with subordinate basaltic flows and breccias, rhyolitic lapilli turf, and rhyolite porphyry (Macdonald and Barr 1993; Barr et al.
The upper part of the unit is dominated by sandstone with carbonaceous quartz-rich litharenite
and arkose inter- cross-stratified with subordinate grey siltstone and organic-rich shale.
In the easternmost McCoy Brook Formation basin, an irregular silicified body (5 m in length, 1 m thick) appears to have replaced permeable polymictic coarse litharenite