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Peridotite ( US: / ˈpɛrɪdoʊˌtaɪt, pəˈrɪdə -/ PERR-ih-doh-tyte, pə-RID-ə-) is a dense, coarse-grained igneous rock consisting mostly of the silicate minerals olivine and pyroxene. Peridotite is ultramafic, as the rock contains less than 45% silica. It is high in magnesium (Mg 2+ ), reflecting the high proportions of magnesium-rich ...
Mid-ocean ridge cross-section (cut-away view) A mid-ocean ridge ( MOR) is a seafloor mountain system formed by plate tectonics. It typically has a depth of about 2,600 meters (8,500 ft) and rises about 2,000 meters (6,600 ft) above the deepest portion of an ocean basin. This feature is where seafloor spreading takes place along a divergent ...
Claystone – Clastic sedimentary rock composed primarily of clay-sized particles. Coal – Combustible sedimentary rock composed primarily of carbon. Conglomerate – Sedimentary rock composed of smaller rock fragments. Coquina – Sedimentary rock that is composed mostly of fragments of shells.
Making family. Across her photography, Toledano takes effortlessly intimate portraits, from a separate daydream-like series of young couples in love to commissioned shoots for Nike and W magazine ...
A gigantic dinosaur twice the size of a city bus will soon be on display for the public to see – its one-of-a-kind green bones and all. The team of paleontologists who discovered, recovered and ...
The SAG-nominated actor was honored with a star on the Hollywood Walk of Fame on Monday. In a rare appearance, Vaughn and wife Kyla Weber were joined by their children Locklyn, 13, and Vernon, 11 ...
T.Anderson. Thunbergia erecta, commonly known as the bush clock vine or king's mantle, is a vibrant, evergreen species of shrub in the family Acanthaceae. Native to the forest zone stretching from Guinea-Bissau to western Cameroon, it has found significant cultivation worldwide due to its ornamental appeal and versatility.
Iguanodon (/ ɪ ˈ ɡ w ɑː n ə d ɒ n / i-GWAH-nə-don; meaning 'iguana-tooth'), named in 1825, is a genus of iguanodontian dinosaur.While many species found worldwide have been classified in the genus Iguanodon, dating from the Late Jurassic to Early Cretaceous, taxonomic revision in the early 21st century has defined Iguanodon to be based on one well-substantiated species: I ...