| 词汇 | arenite |
| 释义 | arenite noun[ C or U ] geology specializeduk /ˈær.ə.naɪt/ us /ˈær.ə.naɪt/ a type of rock that is made of sand or particles(= small pieces) similar to sand: 粗屑岩 Many of the island's rocks have been identified as relatively quartz-rich arenites. 这座岛上大多数的岩石是石英含量相对较多的粗屑岩。 Arenite is a sedimentary rock.粗屑岩是一种经沉积形成的岩石。 Related word arenaceous 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). Geology: types of rock agglomerate arenaceous asthenosphere asthenospheric basaltic emery flinty gneiss intrusive lahar limestone lodestone magma marcasite marl marmoreal mudstone obsidian sandstone schist Examples of arenitearenite 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. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The arenite can contain calcareous concretions, fossils and hardgrounds with shell fragments. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Six sandstone names are possible using descriptors for grain composition (quartz-, feldspathic-, and lithic-) and amount of matrix (wacke or arenite). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The sediment is mostly quartz arenite. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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