What does alum shale mean?
Definitions for alum shale
alum shale
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Wikipedia
alum shale
The Alum Shale Formation (also known as alum schist and alum slate) is a formation of black shale of Middle Cambrian to Tremadocian (Lower Ordovician) in age found predominantly in southern Scandinavia. It is shale or clay slate containing pyrite. Decomposition of pyrite by weathering forms sulfuric acid, which acts on potash and alumina constituents to form alum, which often occurs as efflorescences on the rock outcrop. As the formation contains kerogen originated from algae, it is also classified as marinite-type oil shale. At the same time it is rich in aromatic hydrocarbon attributed to post-depositional irradiation damage to saturated hydrocarbons, induced by uranium concentration in the shale. Alum shale also contains enhanced levels of radium as a result of uranium decay. Between 1950 and 1989, Sweden used alum shale for the uranium production.
Webster Dictionary
Alum shale
a variety of shale or clay slate, containing iron pyrites, the decomposition of which leads to the formation of alum, which often effloresces on the rock
Wikidata
Alum shale
Alum shale is a variety of shale or clay slate containing pyrites. Decomposition of pyrite by weathering forms sulfuric acid, which acts on potash and alumina constituents to form alum, often efflorescences on the rock. Alum shale contains kerogen originated from algae. At the same time it is rich of aromatic moieties attributed to post-depositional irradiation damage induced by uranium concentration in the shale. Between 1950 and 1989, Sweden used alum shale for the uranium production. Alum shale also contains enhanced levels of radium.
Numerology
Chaldean Numerology
The numerical value of alum shale in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of alum shale in Pythagorean Numerology is: 2
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"alum shale." Definitions.net. STANDS4 LLC, 2024. Web. 23 Apr. 2024. <https://www.definitions.net/definition/alum+shale>.
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