
Dunite - Wikipedia
Dunite (/ ˈduːnaɪt, ˈdʌnaɪt /), also known as olivinite (not to be confused with the mineral olivenite), is an intrusive igneous rock of ultramafic composition and with phaneritic (coarse-grained) …
纯橄榄岩 - 百度百科
纯橄榄岩(dunite)是属于 超基性 侵入岩的一种,全部或几乎全部由橄榄石组成(90%-100%),可含少量辉石及其他矿物,但后者含量(0-10%),常含有铬铁矿、磁铁矿、钛铁 …
純橄欖岩 - 维基百科,自由的百科全书
純橄欖岩 (英語: Dunite),也稱為Olivinite,是一種基性深成火成岩,具顯晶(粗粒)結構。 礦物組合超過90%是 橄欖石,還有少量其他礦物比如 輝石 、 鉻鐵礦 、 磁鐵礦 和鎂鋁榴 …
Dunite: Formation, Composition, Properties – Geology In
Dunite is an intrusive igneous rock of ultramafic composition and with a phaneritic texture. Dunite, also known as olivinite, is known for its coarse-grained texture and almost exclusive …
Dunite | Mantle Rock, Olivine & Peridotite | Britannica
Dunite, light yellowish green, intrusive igneous ultramafic rock that is composed almost entirely of olivine. Dunite usually forms sills (tabular bodies intruded between other rocks) but may also …
Origins of orogenic dunites: Petrology, geochemistry, and implications
2016年1月1日 · Orogenic dunites are common in high-pressure (HP) and ultrahigh-pressure (UHP) metamorphic belts. This paper reviews the origins of orogenic dunites from over 40 …
Dunite: A Coarse-grained, Olivine-rich Greenish Plutonic Rock
2023年6月25日 · Dunite is a coarse-grained, pale green to olive-green, ultramafic intrusive igneous rock with more than 90% olivine. It also may have smaller amounts of pyroxene, …
Dunite - Igneous Rocks - Sandatlas
Dunite is an ultramafic plutonic rock that is composed almost exclusively of olivine. “Ultramafic” means that mafic minerals form more than 90% on the rocks composition. Most common mafic …
Dunite - National MagLab
2015年11月13日 · Dunite. Dunite is an intrusive igneous rock that dominantly consists of coarse grains of the pale green mineral olivine. When the rock weathers, however, it typically appears …
纯橄榄岩-Dunite-地质-岩石-矿物-矿石-标本-高清图片-中国新石器 …
纯橄榄岩(英文名:Dunite) 所属分类:火成岩/岩浆岩. 一种超基性侵入岩,几乎全部由橄榄石构成(>90%),含少量铬铁矿、磁铁矿等,在地幔中含量丰富,在陆地上相对较少。