NZ7719 : Polyhalite Rock

taken 12 months ago, near to Staithes, North Yorkshire, Great Britain

Polyhalite Rock
Polyhalite Rock
I collected this from a drill bay in the polyhalite district where resource definition is undergoing. It's just under a mile underground and rather hot! Polyhalite is a multinutrient mineral which is crushed and used as fertiliser. Boulby mine is transitioning from potash ore (Sylvite - potassium chloride) to polyhalite as the potash orebody becomes exhausted. The mine is very large and extends several kilometres under the North Sea. A new mine is being constructed down the coast to exclusively mine polyhalite.

The potash resources are the result of evaporation of seawater during the Late Permian period. The evaporite sequences are an important cap rock for oil and gas deposits in the area.
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NZ7719, 2 images   (more nearby )
Photographer
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Date Taken
Saturday, 16 December, 2017   (more nearby)
Submitted
Saturday, 16 December, 2017
Geographical Context
Geological interest 
Subject Location
OSGB36: geotagged! NZ 7779 1983 [10m precision]
WGS84: 54:34.0633N 0:47.9013W
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