arenite

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Exempel på arenite

  • Most of these sedimentary rock fragments are coarse arenites or fine diamictites.

  • The composition of the arenites is given in Table 2.

  • Arenite is a sedimentary clastic rock with sand grain size between 0.0625 mm (0.00246 in) and 2 mm (0.08 in).

  • In sections from a proximal position relative to the palaeo-shoreline, the lower parts of this limestone are dolomitized and contain thin intercalations of quartz arenite.

  • Beds of very fine to very coarse, rarely gravelly, sandstone (volcanic lithic arenite) and mudstone dominate the succession with subordinate beds of lithic and vitric tuff.

  • Beds of very fine to very coarse, sandstone (volcanic lithic arenite) and mudstone dominate the succession with a bed of lithic and vitric tuff occurring at one horizon.

  • Beds of very fine to very coarse, rarely gravelly, sandstone (volcanic lithic arenite) and mudstone dominate the succession with beds of lithic and vitric tuff occurring at two horizons.

  • The term quartzose sandstone can also be used for a quartz arenite.

  • Sand composition is largely quartz arenite and a small percentage of monomineralic components dominated by quartz and some accessory minerals (zircon, feldspar, hematite, and rutile).

  • The arenite can contain calcareous concretions, fossils and hardgrounds with shell fragments.

  • Six sandstone names are possible using descriptors for grain composition (quartz-, feldspathic-, and lithic-) and amount of matrix (wacke or arenite).

  • The sediment is mostly quartz arenite.

Betydelse av arenite

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NYA ORD

European

May 10, 2021

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DAGENS ORD

Shimmer

May 10, 2021

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