| 单词 | sandstone |
| 释义 | sandstone noun[U] uk/ˈsænd.stəʊn/us/ˈsænd.stoʊn/atypeofrockformedfromsand 砂岩 DonNichols/iStock/Getty Images Plus/GettyImages Geology: types of rock
sandstone| American Dictionarysandstone noun[U] us/ˈsændˌstoʊn/asoft,yelloworredrock, often used as abuildingmaterial Examplesofsandstonesandstone A package of impure finesandstonewith poorly developed bedding follows in the succession. From theCambridge English Corpus As a result, joints that traverse impermeable deformation band shear zones may provide the primary pathways for fluid flow in sandstones compartmentalized by these zones. From theCambridge English Corpus Numerous thinsandstonebeds (in general about 10 cm thick) are separated by thicker units of flaser-bedded siltstones and mudstones. From theCambridge English Corpus Incubation vessels inside the chamber were filled with sterile sand, inoculated with crushedsandstone-based biofilms and allowed to incubate for 5.5 months. From theCambridge English Corpus The c. 25 m of purple, fine-grained sandstones below include quartz-arenitic intercalations and have an essentially calcareous matrix. From theCambridge English Corpus In the channel casts, thesandstonepackages are separated by oscillation wave ripples and microbial structures. From theCambridge English Corpus The sharp-based sandstones with traction-generated internal sedimentary structures represent storm eventbeds emplaced by episodic storm-generated currents. From theCambridge English Corpus Some conglomerates contain thin (< 10 cm) lenses ofsandstone. From theCambridge English Corpus These conglomerates are composed of clasts of basalt, volcaniclasticsandstone, alkaline lava and sub-rounded chert. From theCambridge English Corpus This consists of coarse-grained sandstones with frequent pebbles or thin interbeds of small pebble conglomerates. From theCambridge English Corpus This second phase of electron microscopy was carried out to determine accurate percentages of each mineral phase present in the different sandstones. From theCambridge English Corpus This facies occurs as beds of coarse or medium to fine, normally gradedsandstonebetween 0.3 and 1.0 m thick. From theCambridge English Corpus Interbedded thin fine-grainedsandstoneand siltstone layers are laminated and wavy in nature. From theCambridge English Corpus The siltstones commonly contain detrital white mica flakes that are generally lacking in the sandstones, and are possibly of distal continental origin. From theCambridge English Corpus The sandstones are the more reliable indicators of the state of evolution of arcs of this type, as they represent near-source deposition. From theCambridge English Corpus 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. CollocationswithsandstonesandstoneThese are words often used in combination withsandstone. Click on a collocation to see more examples of it. massive sandstone Its lower levels are built of cyclopean masonry - massive sandstone blocks that were quarried on site. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.red sandstone In an image containing these rocks, the computer vision system found several of them to be more interesting than the surroundingredsandstone. From theCambridge English Corpus sandstone arch Its stage is under a sandstone arch and its seats are carved from wood. 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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