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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: Igneous Rock - Pictures, Definition More
    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 the intrusive equivalent of basalt, which is its extrusive counterpart formed from the same type of magma but cooled rapidly at the surface Much of the Earth's oceanic crust is made of gabbro, formed at mid-ocean ridges
  • 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 Rock: Formation, Texture Uses - Sandatlas
    What Is Gabbro? Gabbro is a coarse-grained and typically dark-colored igneous rock It is one of the most common intrusive igneous rocks and plays a key role in the composition of the lower continental and oceanic 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: Identification, Pictures Info for Rockhounds
    Gabbro is an intrusive igneous rock composed primarily of plagioclase feldspar and large amounts of mafic minerals like pyroxene It has a phaneritic texture, meaning its interlocking crystals can be seen with the naked eye
  • Gabbro Definition - Intro to Geology Key Term | Fiveable
    Gabbro is a dark-colored, coarse-grained igneous rock that primarily consists of plagioclase feldspar and pyroxene It forms when magma cools slowly beneath the Earth's surface, resulting in large crystals that are visible to the naked eye





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