magnesian limestone


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magnesian limestone

[mag′nē·zhən ′līm‚stōn]
(petrology)
Limestone with at least 90% calcite, a maximum of 10% dolomite, an approximate magnesium oxide equivalent of 1.1-2.1, and an approximate magnesium carbonate equivalent of 2.3-4.4.
References in periodicals archive ?
It passes through impressive cliff top scenery and the Durham denes, deep wooded ravines carved into the Magnesian Limestone rock.
His early-morning picture of the magnesian limestone stack on Seaham beach in County came top in a photography competition run by the Limestone Landscapes Project.
A fascinating two hour stroll around the ancient magnesian limestone gorge that is Castle Eden Dene National Nature Reserve awaits, as you learn the story hidden within the stones.
South of the Tyne, the make up of the coast includes land reclaimed from salt marsh and soft magnesian limestone.
Last year, victims and their families were finally able to claim from a pounds 36m compensation pot The site is close to a former chemical works, set up in 1842, and the business started with a process for separating silver from lead and continued into the extraction of magnesia from magnesian limestone.
Cross Gill on the County Durham coast comprises nine hectares of species rich magnesian limestone grassland.
Trow Quarry is a former magnesian limestone quarry which was used as a landfill site and has now been capped over and landscaped.
But Residents Against Toxic Site (RATS) wants a public inquiry into the use of the quarry, which is cut into a band of magnesian limestone, as a landfill site.
One of the sites is the former magnesian limestone quarry at Bishop Middleham, near Sedgefield, which ceased production in 1934 and is now a Durham Wildlife Trust nature reserve.
Durham County Council is working to restore magnesian limestone grassland so rare it grows only in the east of County Durham ( and nowhere else.
The Heritage Lottery Fund (HLF) has awarded the grant to the Limestone Landscapes Partnership for a three-year project covering the magnesian limestone belt which runs along the coast from Hartlepool to South Shields.