quartzitic การใช้

• This is the first-known quartzitic caves formed by erosion by rain.
• Surface expressions are composed of evaporites rocks, plus igneous rocks and quartzitic sandstone.
• The steeply inclined bands of rock near Blankenburg comprise quartzitic sandstones of the Santonian.
• The underlying rock is Malmesbury shale with a zone of greywacke and quartzitic limestone.
• It is a conglomerate of quartzitic sandstone and ranges in thickness from 50 200 m.
• It occurs in quartzitic sandstone in a butte that overlooks in an east direction above the Verlorenvlei River.
• In the semi-circular quarry, whitish quartzitic sandstone of the Karlstal beds of the Middle Bunter was extracted.
• The dam, which is made of argillaceous and quartzitic shale, is sealed with an internal core of grass sods.
• Collmberg consists chiefly of quartzitic Greywacke originating from the Ordovician more than 500 million years ago, also of quartzite and Zau遷itz.
• A business known far beyond Trechtingshausen s limits is the stoneworks, which quarries quartzitic greywacke from a strip mine and processes it.
• Upper member of the Nankoweap Formation consists of about 100 m of generally reddish-purple, fine-grained, quartzitic sandstones.
• The cave developed in a breccia often found at the contact between Silurian Table Mountain Series quartzite and Cretaceous Uitenhage Series quartzitic sandstone.
• A workshop specialized in quartzitic sandstone bifacially shaped points evidences a new occupation of the Yam?Valley between the 6th and 4th mill.
• The mineral occurs in manganese-rich lenses in quartzitic chlorite schists, metamorphosed zinc ore bodies, and rarely in metamorphosed Mn ore bodies.
• The "'Gray Sandstone Group "'is a late Silurian quartzitic sandstones and mudstones, sandy rottenstones are found at outcrop.
• The basal rocks of the Minfordd Formation contain clasts of granite, vein quartz, quartzitic sandstone, quartzose schists and were thought to be Cambrian basal conglomerate.
• Discordantly overlying the Lower Eocene is the Middle Eocene Regadera Formation; quartzitic and feldspar rich thick medium to coarse grained to conglomeratic sandstone beds intercalated with thin pink claystones.
• Even though the mountains are very old by Andean and Alpine standards, they remain steep and rugged due to their quartzitic sandstone geology ( see below ) making them very resistant to weathering.
• Even though the mountains are very old by Andean and Alpine standards, they remain steep and rugged due to the Table Mountain Sandstone s quartzitic sandstone geology, making them very resistant to weathering.
• The Cederberg Formation includes dark grey siltstone and silty sandstones, and is darker than the overlying Goudini Formation which is light brown to light grey quartzitic sandstone, with interbedded reddish brown siltstone and shale.