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bituminous shales

shale <shale; shales> SOST GEOL

shale <shale; shales> SOST

alum shale GEOL

bituminous shale GEOL

clay shale MILIT

dense shale GEOL

diatomaceous shale GEOL

kerosene shale PETROLCHIM

kim shale GEOL

shale formation GEOL

shale oil refinery PETROLCHIM

Esempi monolingue (non verificati dalla Redazione di PONS)

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As a source for hydrocarbon production, particular interest is oil shales in Dead Sea graben area.
en.wikipedia.org
Fossil leaves are abundant, especially in the shales and sandstones associated with coal.
en.wikipedia.org
The sediments are composed of deep-water shales and radiolarite.
en.wikipedia.org
Some black shales contain abundant heavy metals such as molybdenum, uranium, vanadium, and zinc.
en.wikipedia.org
In addition to the quartz veins in the shales, the diorite contains low grade mineralized shear zones.
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They contain strata of hydrocarbons (oil shales), which have been burning continuously for centuries.
en.wikipedia.org
The mountain is made up of grey limestone with a cap of sandstone and shales and is extensively quarried by local companies.
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They only make up about 15 percent of framework grains in sandstones and 5% of minerals in shales.
en.wikipedia.org
Culm grassland on the formation's slates and shales is composed of purple moor grass and rush pasture.
en.wikipedia.org
Sometimes non-shales also have elevated levels of gamma radiation.
en.wikipedia.org

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