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单词 greensand
释义

greensand

/ˈɡriːnsand /
noun [mass noun] Geology
1A greenish kind of sandstone, often loosely consolidated.The sample was taken from a thin limestone lens with phosphatic oolites within the phosphatic greensand....
  • Use additions of mineral-rich materials such as rock phosphate or greensand to tailor the nutrients in your compost to match the needs of your soil and plants.
  • They lie on a fault line created by a seam of greensand, which runs for 200 miles from Lyme Regis to the Wash, taking in the edge of the Bowood Estate.
1.1 (usually the Greensand) A stratum largely composed of greensand, deposited during the Cretaceous period and often underlying chalk: the Upper Greensand...
  • Overlying the Jurassic succession, a thin sequence of basal Cretaceous strata including the Greensand is characterized by radial outward dips.
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更新时间:2025/2/3 14:52:51