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单词 peridotite
释义

peridotite /'perɪdɒtaɪt//ˌpɛrɪ'dotaɪt/

英汉-汉英词典
n. 橄榄岩
词组 | 习惯用语
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  • peritonitis n. 腹膜炎
  • periodontist n. 牙周病学家;牙周病医师
  • periodontics n. (单复同)牙周病学
  • periodicity n. 定期;周期性 周律
peridotite n. [岩] 橄榄岩
mica peridotite 云母橄榄岩
alpine type peridotite 阿尔卑斯式橄榄岩

网络短语:
fayalite peridotite 铁橄榄岩
mantle peridotite 地幔橄榄岩
peridotite porphyrite 橄榄玢岩
anthophyllite peridotite 直闪橄榄岩
peridotite picrite 橄榄岩
magnetite peridotite 磁铁橄榄岩
peridotite hornblendite 橄榄角闪石岩
enstatite peridotite 顽火橄榄岩
英语例句库
  1. Near the border zone an important string of nickeliferous peridotites is emplaced.
    在靠近交界带上有重要的一连串的含镍橄榄岩(体)的侵入。
  2. The Ophiolite massifs are composed of mantle peridotite that is mainly harzburgite and dunite, and lacked of crust magmatite within the typical Ophiolite suite.
    摘要该蛇绿岩带的岩体由地幔橄榄岩组成,主要岩石类型是方辉橄榄岩和纯橄榄岩,缺少典型蛇绿岩剖面中的洋壳单元。
  3. Peridotite has undergone strong serpentinization and was completely replaced by serpentinite, but the pseudomorph of olivine and orthopyroxene still are preserved.
    橄榄岩虽然发生了强烈蛇纹岩化(现在为蛇纹岩),但蛇纹岩中保留了斜方辉石和橄榄石的假象。Near the border zone an important string of nickeliferous peridotites is emplaced.
    在靠近交界带上有重要的一连串的含镍橄榄岩(体)的侵入。
  4. The Ophiolite massifs are composed of mantle peridotite that is mainly harzburgite and dunite, and lacked of crust magmatite within the typical Ophiolite suite.
    摘要该蛇绿岩带的岩体由地幔橄榄岩组成,主要岩石类型是方辉橄榄岩和纯橄榄岩,缺少典型蛇绿岩剖面中的洋壳单元。

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原声例句
VOA Special 2017年4月合集

The mantle contains rocks called peridotite.

地幔含有称为橄榄岩的岩石。

万物简史

We know that to a depth of about a hundred miles the mantle consists predominantly of a type of rock known as peridotite, but what fills the space beyond is uncertain.

我们知道,到了大约150公里的深处,地幔主要是由一种名叫橄榄岩的岩石组成,但以下的2650公里是什么就不清楚。

中文百科

橄榄岩

橄榄岩是一种超基性侵入岩石,深绿色,粒状结构,主要由橄榄石和辉石组成,其中橄榄石成分达到40%-50%以上,含有少量的角闪石、黑云母以及铬、铁矿等。橄榄岩含有少于45%的二氧化硅,属于超基性岩石。 根据其含有的辉石种类的区别,橄榄岩可分为:

橄榄岩常与其他的基性岩或超基性岩形成混合的杂劣体,橄榄岩经过蚀变后可以形成蛇纹岩。和橄榄岩伴生的矿物还有镍、钴、铂、石棉和滑石等。

而橄榄岩会使二氧化碳气体转化成固态方解石。

英语百科

Peridotite 橄榄岩

Classification diagram for peridotite and pyroxenite, based on proportions of olivine and pyroxene. The pale green area encompasses the most common compositions of peridotite in the upper part of the Earth's mantle (partly adapted from Bodinier and Godard (2004)).
Olivine in a peridotite weathering to iddingsite within a mantle xenolith

Peridotite is a dense, coarse-grained igneous rock, consisting mostly of the minerals olivine and pyroxene. Peridotite is ultramafic, as the rock contains less than 45% silica. It is high in magnesium, reflecting the high proportions of magnesium-rich olivine, with appreciable iron. Peridotite is derived from the Earth's mantle, either as solid blocks and fragments, or as crystals accumulated from magmas that formed in the mantle. The compositions of peridotites from these layered igneous complexes vary widely, reflecting the relative proportions of pyroxenes, chromite, plagioclase, and amphibole.

近义、反义、联想词
近义词
n.
igneous rock

联想词
sedimentary沉积的;carbonate碳酸盐;magma岩浆;volcanic火山的;sediments沉淀物;limestone石灰岩;silica硅土;geologic地质的;mineral矿物;tectonic构造的;crystalline水晶的;
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