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) …

2024年3月1日 · High-porosity, melt-focusing channel systems (comprising reactive dunite and its surrounding harzburgite) reflect an essential type of melt extraction within the mantle under …

Dunite is a type of rock that is characterized by its high olivine content and is often found as veins within peridotite. It is believed to act as porous flow channels for the transportation of melt from …

2024年3月1日 · High-porosity, melt-focusing channel systems (comprising reactive dunite and its surrounding harzburgite) reflect an essential type of melt extraction within the mantle under …

2021年1月25日 · Harzburgite–dunite associations in the Yushigou ophiolitic complex (North Qilian suture, NW China) offer insights into melt migration and melt–rock interaction above a …

2024年1月14日 · We present systematic petrographic observations and whole-rock/mineral compositional analyses of a dunite-harzburgite channel system (~250 m in width) within the …

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 …

2002年11月6日 · In this study we examine the abundance and size distribution of dunite conduits preserved in the Oman Ophiolite to assess proposed mechanisms of dunite formation and …

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, …

2020年2月1日 · MOR dunite channels show large Os-isotope variations on mineral to rock scales. Sulfide evolution explains Os-isotope mismatch between oceanic mantle and crust. Melt …