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A calcium–aluminium-rich inclusion or Ca–Al-rich inclusion (CAI) is a submillimeter- to centimeter-sized light-colored calcium- and aluminium-rich inclusion found in carbonaceous chondrite meteorites. The four CAIs that have been dated using the Pb-Pb chronometer yield a weighted mean age of 4567.30 ± 0.16 Myr.
The following inclusion types can also be found in aluminium alloys: alumina needles (Al 2 O 3), nitrides (AlN), iron oxides (FeO), manganese oxides (MnO), fluorides (Na 3 AlF 6, NaF, CaF 2, …), aluminium borides (AlB 2, AlB 12), borocarbides (Al 4 C 4 B). Bone ash (Ca 3 (PO 4) 2) sometimes added to patch cracks in the trough can be found as ...
Alagoas (AL) Unknown Teatro Gustavo Leite [20] Maceió: 1,251 Ginásio do SESI 8,864 Ceará (CE) November 11, 1973 Castelão: Fortaleza: 67,037 Unknown Marina Park Hotel [citation needed] 32,000 June 30, 2012 Centro de Eventos do Ceará: 30,000 2015 Ginásio Olímpico: 21,000 September 17, 2005 Siará Hall: 14,000
This article describes the diplomatic affairs, foreign policy and international relations of Ecuador. Ecuador is a founding member of the UN and a member of many of its specialized agencies; it is also a member of the Organization of American States (OAS), as well as many regional groups, including the Rio Group, the Latin American Economic System, the Latin American Energy Organization, the ...
The Gadsden Purchase. The U.S. made the Gadsden Purchase in 1853 to acquire a nearly 30,000 square-mile region of present-day southern Arizona and southwestern New Mexico in a treaty signed by the ...
The Santa Ynez Reservoir, a 117-million-gallon water resource near the Pacific Palisades, was under renovation and empty when fires tore through the Los Angeles neighborhood last week and ...
The Basilica and Convent of San Francisco (Spanish: Iglesia y Convento de San Francisco), commonly known as el San Francisco, is a Catholic basilica that stands in the middle of the historic center of Quito, in front of the square of the same name. It is the oldest and most significant religious site in Ecuador. [1]
NADINE EL-BAWAB. December 19, 2024 at 12:54 PM. A passenger who attacked a public bus driver and stabbed him to death in Seattle remains on the loose, according to officials.