查询词典 mantle

The rock is peridotite, which is one of the main rocks in the upper mantle, an area that provides a girth below the Earth's crust.

这种石头是一种橄榄岩，是上地幔中的一种主要岩石。地幔位于地壳下面，包围着地壳。

Secondary orthopyroxene has also been documented in mantle peridotite xenoliths derived from beneath both active arcs and ancient cratons.

交代的斜方辉石在现代活动岛弧和古克拉通的地幔橄榄岩捕掳体中多有报道。

The rock occurs some 20km or more down, although in areas where plate tectonics have forced up some of the mantle, peridotite reaches the surface.

这种岩石出现在地表20或20公里以下地方，但在有些区域的板块构造运动已迫使一些地幔，橄榄岩上升到地表。

Genetic mechanism of metamorphic peridotite in the ophiolites is partial melting of the upper mantle peridotite. Difference between two types ophiolites is dicided by degree of the partial melting.

两类蛇绿岩中变质橄榄岩的成因机制是上地幔岩部分熔融，两者之间的差异则是由部分熔融程度决定的。

Since olivine is silica-unsaturated, quartz and olivine never coexist in the same rock. Therefore, in mantle peridotite and other ultramafic rocks, primary quartz can never be found.

由于石英和非饱和SiO_2的橄榄石不能共生，因此在地幔橄榄岩和超镁铁岩中不存在原生石英。

This paper gives a brief review of the characteristics and petrogenesis of mantle peridotite in continental subduction and collision belts, and then discusses in more detail the petrogenesis of peridotites in the North Qaidam ultrahigh pressure metamorphic belt.

论述了大陆俯冲碰撞带中地幔橄榄岩的基本特征和成岩类型，并重点讨论柴北缘超高压变质带中不同性质的橄榄岩及其成因。

In respect of mineralogy and petrology as well as strontium isotope, the Pl-lherzolite exhibits some features of transition from the cumulates to the mantle peridotite.

在矿物成分、化学成分及锶同位素等力面，含长二辉橄榄岩具有介于地幔橄榄岩和堆晶岩之间的某些过渡特征。

Tyrosinase OT47 was expressed specifically in the outer epithelial cells of the middle mantle fold, suggesting that it contributes to periostracum formation and the periostracum secretion model of P. fucata is different from previous opinion.

其中，合浦珠母贝酪氨酸酶OT47的基因特异性的表达于外套膜中褶外侧上皮细胞，可能与角质层形成有关，同时表明合浦珠母贝角质层形成可能具有其独特的细胞分泌模式。

This will have important implication to petrogenesis of alkaline rocks and their relationship to gold deposits, and structure of subcontinental lithospheric mantle and geodynamics.

此项研究成果对碱性岩的成因理论及其与金矿的关系以及探索本区大陆岩圈的结构和动力学过程均具有重要意义。

The petrogenesis of both the HT and LT magmas was further complicated by contamination of crust and lithospheric mantle.

HT和LT岩浆的岩石成因又进一步为地壳和岩石圈地幔的混染作用所复杂化。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

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集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐