| 释义 |
greensandenUK
green·sand G0260900 (grēn′sănd′)n. A sand or sediment having a dark greenish color caused by the presence of glauconite.greensand (ˈɡriːnˌsænd) n (Geological Science) an olive-green sandstone consisting mainly of quartz and glauconitegreen•sand (ˈgrinˌsænd)
n. a sandstone containing much glauconite, which gives it a greenish hue. [1790–1800] Thesaurus| Noun | 1. | greensand - an olive-green sandstone containing glauconitesandstone - a sedimentary rock consisting of sand consolidated with some cement (clay or quartz etc.) |
greensandenUK
greensand[′grēn‚sand] (geology) A greenish sand consisting principally of grains of glauconite and found between the low-water mark and the inner mud line. (materials) A highly siliceous sand that contains small amounts of magnesia and alumina, with about 8% of its bulk in powdered coal or charcoal; dampened with water to make foundry molds. (petrology) Sandstone composed of greensand with little or no cement. greensandA resin used to oxidize the soluble iron in water and then to filter it out.greensandenUK
Related to greensand: manganese greensandWords related to greensandnoun an olive-green sandstone containing glauconiteRelated Words |