ultramafic rock
11Roca ultrabásica — Saltar a navegación, búsqueda Las rocas ultrabásicas (también referida como ultramáficas) son rocas ígneas y meta ígneas con muy bajo sílice (menos de 45%), generalmente >18% MgO, alto FeO, bajo potasio, y se compone de usualmente más de 90%… …
12Serpentine soil — Serpentine soils are soils derived from ultramafic rocks, in particular serpentinite, an ultramafic rock formed by the hydration and metamorphic transformation of ultramafic rock from the Earth s mantle. The soils derived from ultramafic bedrock… …
13Talc carbonate — is a geologic term for a suite of rock and mineral compositions found in metamorphic ultramafic rocks.The term refers to the two most common end member minerals found within ultramafic rocks which have undergone talc carbonation or carbonation… …
14Nepenthes rajah — Large lower pitcher of Nepenthes rajah. Mount Kinabalu, Borneo. Conservation status …
15Serpentinite — is a rock composed of one or more serpentine minerals. Minerals in this group are formed by serpentinization, a hydration and metamorphic transformation of ultramafic rock from the Earth s mantle. The alteration is particularly important at the… …
16Windimurra intrusion — The Windimurra Intrusion is a giant ultramafic mafic intrusion emplaced within the Yilgarn craton of Western Australia. It is located approximately 100 kilometres south east of the town of Mount Magnet.ettingWindimurra is a conical sheet like… …
17felsic and mafic rocks — ▪ igneous rock division of igneous rocks (mafic rock) on the basis of their silica content. Chemical analyses of the most abundant components in rocks usually are presented as oxides (oxide) of the elements; igneous rocks typically consist… …
18Garnierite — is a general name for a green nickel ore which is found in pockets and veins within weathered and serpentinized ultramafic rocks. The name was given by Jules Garnier who first described it 1864 for an occurrence in New Caledonia. It forms by… …
19Greenstone belt — Greenstone belts are zones of variably metamorphosed mafic to ultramafic volcanic sequences with associated sedimentary rocks that occur within Archaean and Proterozoic cratons between granite and gneiss bodies. The name comes from the green hue… …
20South America — South American. a continent in the S part of the Western Hemisphere. 271,000,000; ab. 6,900,000 sq. mi. (17,871,000 sq. km). * * * Continent, Western Hemisphere. The world s fourth largest continent, it is bounded by the Caribbean Sea to the… …
