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gabbro    音标拼音: [g'æbro]
辉长岩

辉长岩

gabbro
n 1: one of a family of granular intrusive rocks


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  • Gabbro - Wikipedia
    Gabbro is a coarse-grained (phaneritic) igneous rock that is relatively low in silica and rich in iron, magnesium, and calcium Such rock is described as mafic Gabbro is composed of pyroxene (mostly clinopyroxene) and calcium-rich plagioclase, with minor amounts of hornblende, olivine, orthopyroxene and accessory minerals [4]
  • Gabbro | Properties, Formation, Composition, Uses - Geology Science
    Gabbro is a type of intrusive igneous rock that is coarse-grained and dark-colored, typically composed of calcium-rich plagioclase feldspar, pyroxene, and sometimes olivine It is similar in composition to basalt, which is its extrusive equivalent
  • Gabbro: Igneous Rock - Pictures, Definition More - Geology. com
    What is Gabbro? Gabbro is a coarse-grained, dark-colored, intrusive igneous rock It is usually black or dark green in color and composed mainly of the minerals plagioclase and augite It is the most abundant rock in the deep oceanic crust Gabbro has a variety of uses in the construction industry
  • Gabbro: Composition, Types, Properties, Uses – Geology In
    Gabbro is an important rock for understanding the Earth's interior It is the most abundant rock in the Earth's oceanic crust, and it is also found in the upper mantle This suggests that gabbro is a major component of the Earth's lower crust and upper mantle
  • Gabbro | Igneous Rock, Mafic Minerals Plutonic Intrusions - Britannica
    Gabbro, any of several medium- or coarse-grained rocks that consist primarily of plagioclase feldspar and pyroxene Essentially, gabbro is the intrusive (plutonic) equivalent of basalt, but whereas basalt is often remarkably homogeneous in mineralogy and composition, gabbros are exceedingly
  • Gabbro: The Intriguing Coarse-Grained Igneous Rock . . . - Rock Seeker
    Gabbro is a dense, coarse-grained igneous rock that forms deep beneath the Earth’s surface as slow-cooling magma solidifies It shares the same composition as basalt but cools slowly enough for its minerals to grow large and become visible to the naked eye
  • Gabbro: Identification, Pictures Info for Rockhounds
    Gabbro is, mineralogically, the coarse-grained equivalent of basalt which is why oceanic plates are usually just described as being ‘basaltic’ Most of the gabbro that we find on the surface today formed not as oceanic crust, but as an intrusion or large basaltic flow on continental crust
  • Gabbro: A Coarse-grained, Dark-Colored Plutonic Rock
    Gabbro is a dense, coarse-grained, dark-colored, mostly plutonic rock Its essential minerals are calcic plagioclase and pyroxene, but it may have minor amounts of amphibole, olivine, and other minerals
  • Gabbro - Geology is the Way
    Gabbro is a plutonic igneous rock and the intrusive counterpart of basalt The name ‘gabbro’ derives from the Italian town of Gabbro (Rosignano Marittimo, Tuscany) and was first coined by the Italian geologist Tozzetti in 1768 Tozzetti used the term to refer to a suite of ophiolitic rocks
  • Gabbro Rock: Formation, Texture Uses - Sandatlas
    Gabbro is a dark, coarse-grained igneous rock Understand how it forms, its mineral composition, and where it’s commonly found





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