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Bentonite layers from an ancient deposit of weathered volcanic ash tuff in Wyoming Gray shale and bentonites (Benton Shale; Colorado Springs, Colorado). Bentonite (/ ˈ b ɛ n t ə n aɪ t / BEN-tə-nyte) [1] [2] is an absorbent swelling clay consisting mostly of montmorillonite (a type of smectite) which can either be Na-montmorillonite or Ca-montmorillonite.
The Deicke and Millbrig bentonite layers, specifically the potassium bentonite layer, K-bentonite, were formed from a volcanic eruption during the Taconic orogeny during the Late Ordovician on Laurentia, the craton of North America. Researchers are very interested in the eruptions that formed these bentonite layers because they are thought to ...
Bentonite usually forms from weathering of volcanic ash, most often in the presence of water. However, the term bentonite, as well as a similar clay called tonstein, have been used for clay beds of uncertain origin. For industrial purposes, two main classes of bentonite exist: sodium bentonite and calcium bentonite.
Fuller's earth is a term for various clays used as an absorbent, filter, or bleaching agent. Products labeled fuller's earth typically consist of palygorskite (also known as attapulgite) or bentonite. [ 1] Primary modern uses include as absorbents for oil, grease, and animal waste (cat litter), and as a carrier for pesticides and fertilizers.
The San Francisco Bay Salt Ponds are a roughly 16,500-acre (6,700 ha) part of the San Francisco Bay that have been used as salt evaporation ponds since the California Gold Rush era. Most of the ponds were once wetlands in the cities of Redwood City, Newark, and Hayward, and other parts of the bay. Salt production goes back to when the Ohlone ...
Merchants Millpond State Park is a North Carolina state park in Gates County, North Carolina, in the United States. Located near Gatesville, in North Carolina's coastal plain, it covers 3,520 acres (14.2 km 2) [2] around a 200-year-old, 700-acre (280 ha) millpond and Lassiter Swamp. Canoeing is one of the park's major attractions.
Notably, during the final days of the Pacific War, Nosaka, then 14 years old, sought refuge with his younger sister-in-law in a relative's house and nearby bomb shelters near the pond. [18] [19] The location and background in the film is based on a style created by 18th century Japanese artist Hiroshige and his follower Hergé, who created ...
Related: Why Robert Downey Jr. Turned Down Iron Man Cameo in Deadpool & Wolverine — Even After 'Ryan Gave Him the Hard Press' Referencing the final slide in Reynolds’ post, a photo of his ...
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