एक जैतून-हरी बलुआ पत्थर जिसमें ग्लूकोनाइट होता है

greensand's Usage Examples:

The Lower Greensand phosphates have been worked, under the name of " coprolites," at Potton in Bedfordshire and at Upware and Wicken in Cambridgeshire.

Bands of black nodules, highly phosphatic, are found at the top of the Bala limestone in North Wales; beds of concretions occur in the Jurassic series; and important deposits are known in the Cretaceous strata, especially in the Lower Greensand and at the base of the Gault.

Mantell in the Wealden formation of Sussex, and a large part of the skeleton, lacking the head, was subsequently discovered in a block of ragstone in the Lower Greensand near i Skeleton of Iguanodon bernissartensis.

The actual coal measure strata, consisting mainly of shales and clays, are generally impervious to water, but when strata of a permeable character are sunk through, such as the magnesian limestone of the north of England, the Permian sandstones of the central counties, or the chalk and greensand in the north of France and Westphalia, special methods are required in order to pass the water-bearing beds, and to protect the shaft and workings from the influx of water subsequently.

east of the Great Fault (already mentioned) the beds are more regular, comprising, in descending order, (a) Upper Coralline Limestone; (b) Yellow, Black or Greensand; (c) Marl or Blue Clay; (d) White, Grey and Pale Yellow Sandstone; (e) Chocolate-coloured nodules with shells, 'c. (f) Yellow Sandstone; (g) Lower Crystalline Limestone.

The Maltese Islands consist largely of Tertiary Limestone, with somewhat variable beds of Crystalline Sandstone, Greensand and Marl or Blue Clay.

But in 1858 were discerned in the Upper Greensand of Cambridgeshire remains which are now known as Enaliornis.

They are found in the Lower Greensand, or Upper Neocomian series, in the Atherfield Clay at Stopham, near Pulborough; occasionally at the junction of the Hythe and Sandgate beds; and in the Folkeston beds, at Farnham.

The Cambridgeshire coprolites are either amorphous or finger-shaped; the coprolites from the Greensand are of a black or dark-brown colour; while those from the Gault are greenish-white on the surface, brownish-black internally.

Amber and certain similar substances are found to a limited extent at several localities in the United States, as in the greensand of New Jersey, but they have little or no economic value.

greensand's Meaning':

an olive-green sandstone containing glauconite