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bituminous shales

shale <shale; shales> SUST. GEOL.

shale <shale; shales> SUST.

alum shale GEOL.

bituminous shale GEOL.

clay shale MILIT.

dense shale GEOL.

diatomaceous shale GEOL.

kerosene shale PETROQUÍM.

kim shale GEOL.

oil shale

shale formation GEOL.

shale oil PETROQUÍM.

shale oil refinery PETROQUÍM.

Ejemplos monolingües (no verificados por la redacción de PONS)

inglés
As a source for hydrocarbon production, particular interest is oil shales in Dead Sea graben area.
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Fossil leaves are abundant, especially in the shales and sandstones associated with coal.
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The sediments are composed of deep-water shales and radiolarite.
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Some black shales contain abundant heavy metals such as molybdenum, uranium, vanadium, and zinc.
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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.
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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.
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Culm grassland on the formation's slates and shales is composed of purple moor grass and rush pasture.
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Sometimes non-shales also have elevated levels of gamma radiation.
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