This classification shows that the majority of samples are classified as quartz arenite
, few samples from the sediments of core I are plotted in the field of Fe-sands and a single sample from core II is classified as sublitharenite (Fig.
The skeleton was deposited in a prepared floor, constructed of large arenite
Facies code Facies name Lithology Sm Massive Fine-medium moderately sandstones to well sorted quartz arenite
with sub angular to sub- rounded grains Sw Wave rippled Fine-medium moderately sandstone well sorted sandstones with sub angular to sub-rounded grains Smc Massive Sandstone Fine-medium moderately with mudclast to well sorted sandstones with sub angular to sub-rounded grains, hosting grey to black millimetric mudstone fragments SM Sandstone-Mudstone Sandstone with couplets intercalations of thin laminations of dark grey to black mudstones Fm Massively bedded Dark to dark-grey with shale iron stained colorations.
Khalifa, "General characteristics of quartz arenite
types and their role in the recognition of sequence stratigraphic boundaries in ancient coastal and near shore sediments.
Boutt, "Systematic diagenetic changes in the grain-scale morphology and permeability of a quartz-cemented quartz arenite
," AAPG Bulletin, vol.
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Petrographic analysis of fine aggregate from Lawrancepur Quarry Properties (%) Properties (%) Quartz 38.4 Carbonate 9.4 Amphibole 8.1 Quartz mica Schist 7.8 Granite 7.1 Biotite 6.3 Feldspar 4.9 Epidote 2.1 Magnetite 1.9 Muscovite 1.1 Chert 0.5 Lithic arenite
0.3 Table 3.
Dominant classes for GEO arc (predominantly Siluro-Devonian) igneous felsic intrusive, igneous felsic volcanic, (Adaminaby Group) marine sedimentary siliciclastic, sedimentary siliciclastic (includes Siluro-Devonian rift basin, Permo-Triassic Sydney Basin and Cenozoic sediments), and to a lesser extent igneous mafic volcanic (Cenozoic basalts) and quartz-rich arenite
to rudite (includes Siluro-Devonian rift basin and Permo-Triassic Sydney Basin sediments).
In extreme western Wisconsin, the Van Oser is known as a medium- to coarse-grained, well-rounded quartz arenite
that is thick bedded, contains cross bedding and calcareous concretions, and is easily disaggregated, with a thickness of around 45 ft.
Channel deposits are largely composed of lithic arenite
sandstones with calcite cement; intra- and extrabasinal lags are present locally, as described below.
Los Arroyos Formation is a terrigenous-carbonate turbidite unit which includes conglomerate, shale, siltstone, lithic arenite
and limestone .
Toews (1998:112) offers preliminary observations on the distribution of grey quartzite, or "quartz arenite
," in archaeological sites on Banks Island and in the Mackenzie Delta region, but again there is little information available on sources except for a few indications that this material is widespread in local tills in parts of the region.