地幔

对黄铁矿及黄铜矿进行了Pb同位素的测定，显示成矿流体中的成矿物质来源于地幔。

Pyrite and chalcopyrite were measured Pb isotopes show that the minerals of ore-forming fluid from the mantle .

报道了Lu－Hf同位素体系在地幔端元的地球化学研究中的部分最新应用成果。

This presentation reports the new improvements of Lu Hf isotope study on some of the mantle components .

中间圈包括软流圈以下地幔的其余部分。

The mesosphere comprises the rest of the mantle below the asthenosphere .

华南上地幔P波速度结构北京地区地壳和上地幔的三维P波速度结构

Three-dimensional P velocity structure of the crust and upper mantle under Beijing region

原始地幔标准化的过渡元素配分型式表现为不对称的W型，在Ti和Cu处形成两个明显的负异常谷。

The PM-normalized TME distribution patterns are W-type , and have remarkably negative Ti and Cu anomaly .

地幔滞弹性对Chandler摆动的影响

Effects of mantle anelasticity on the Chandler wobble

痕量元素、REE及Sr同位素的特征表明岩浆起源于富集型地幔源区。

Data on trace elements , REE and isotope Sr indicate that the magma come from enriched mantle .

大陆岩石圈地幔经历了来自地幔深处的贫SiO2熔体的进一步改造。

The continental lithosphere was subjected to further alteration by the SiO 2-poor melts from the deep mantle .

对超高压变质岩中O、C、H等同位素的研究进一步表明，超高压变质作用过程中并无大规模流体活动，大气水的O同位素成分可被带到地幔深处而不改变；

Fluids were not active and oxygen isotope composition of meteoric water could be preserved during UHPM process , as is evidenced by O , C , and H isotope data ;

C、O同位素组成特征表明，中国东部大陆地幔具有很大的化学不均一性，可能是由地幔碳的多样性、源区的不均一性或地幔交代作用所致。

The characteristics of carbon and oxygen isotope indicate that continent mantle possesses considerable chemistry inhomogeneity , which possibly results from the diversity of carbon in mantle , inhomogeneity of origin or mantle metasomatism .

地幔流体REE的研究有助于了解地幔区域化学不均一性、地幔的富集与亏损等地幔地球化学特征。

Study on REE in mantle fluids has significance for understanding of regional geochemical difference , mantle enrichment and depletion .

利用Ce、Nd同位素地球化学给出的信息，探讨富集Ⅰ型（EMⅠ）地幔端元的成因。

The genesis of enriched ⅰ type ( EM ⅰ) - mantle domains is also discussed on the basis of the Ce and Nd isotopic characteristics .

本侧重介绍高压超高压实验对地球层圈结构的约束以及与地幔CHO系统密切相关的一些稀少的火成岩岩浆起源的实验成果。

This paper introduces the high-and Ultra-high-pressure experiments being constraint to the layering structure of the Earth , and new experimental results of the origin of the rare magma related to the mantle C-H-O system .

始新世太平洋板块以俯冲作用为主，诱发了区域近南北向伸展构造事件，并形成具有EMⅠ富集地幔混染特征的玄武岩；

The subduction of Pacific Plate during Eocene induced the S-N extension event and basalts with EM ⅰ and EM ⅱ enriched mantle contamination were formed .

为检验本研究提出的理论和方法的有效性，本文使用了两个简单的实验模型：热体和冷体模型；俯冲断离（breakoff）板片模型，计算了其驱动的地幔流场。

In order to test the validity of our theory and method two simple models ( higher lower density body and break off slab ) are employed to calculate their flow patters in this paper .

局部位置上地幔顶部P波速度值偏低，速度值变化范围大，反映出云南地区是典型的构造活动区的特点。

The P wave velocity on the top of the mantle of some places is relatively low and the fluctuating range of the velocity is very large , which may indicates that the Yunnan region is a typical tectonic active area .

结果表明，SLR确定的长周期潮汐解已能检测到地幔滞弹性的影响。

The results show that the long_period tide solutions determined by SLR can detect the effect of mantle anelasticity .

熔体岩石相互作用最终导致了陆下岩石圈地幔富集SiO2，这种被含水富硅熔体改造后的地幔岩石的部分熔融可能是造成陆壳富硅富镁的主要原因。

This kind of melt-rock interaction makes the uppermost mantle enriched in Si , which might be the key to know the compositional characteristics of continental crust .

古海洋的Sr同位素组成变化则是地壳和地幔演化以及不同地质历史时期壳－幔相互作用的共同结果。

The variation of Sr isotope in paleo-ocean is regarded as the result of the evolution of crust and mantle and of the crust-mantle interaction in different geological times .

低的Ni、较高的H2O，说明初始岩浆起源于富含H2O的富集型地幔源区，在相对较低的温度下熔融形成。

Low value of Ni and high content of H 2O suggest that original magma be formed by partial melting of low-temperature part in mantle enriched water .

利用新资料分析了Afar地幔柱与板块构造事件对红海演化过程的影响程度。

New data provide a more complete analysis on how the Afar plume and plate-scale tectonic events interacted the Red Sea Basin evolution .

金矿石中碳酸盐矿物的碳氧同位素组成显示成矿流体中的CO2很可能来自深部（岩石圈地幔甚或更深）。

Carbon and oxygen isotope composition of carbonates in gold ores indicates that CO 2 in ore forming fluids was probably derived from deep interior of the Earth ( lithospheric mantle or deeper ) .

华北克拉通岩石圈地幔置换作用和壳幔生长耦合的Re-Os同位素证据

Removal of lithospheric mantle in the North China craton : Re-Os isotopic evidence for coupled crust-mantle growth

下地幔深部压力条件下顽火辉石Perovskite（MgSiO3）的冲击诱导相变

Shock & induced Transition of Perovskite ( MgSiO_3 ) under the Pressure of the Low Mantle

岩石化学与地球化学表明，富含矿岩体的Na、K、Al、Ca、Fe等组分明显地高于平均地幔岩组分。

Evidence from geochemistry and petro chemistry indicates that the contents of Na , K , Al , Ca and Fe in ore bearing intrusions are apparently higher than those of the corresponding components in pyrolite averaged .

变超基性岩蛇纹石化橄榄岩的稀土元素配分具典型的U形特征，显示为具地幔交代作用的LREE富集地幔残余。

The REE distribution of serpentinized peridotite in ultrabasic rocks is the characteristic of U-type , showing that it was the LREE enriched residual mantle experienced in mantle metasomatism .

辽河裂谷东侧存在壳内高导层，整个断面上地幔高导层发育，在辽河断陷及朝阳、义县地区反映为上地幔隆起区，在西拉木伦河一带出现落差达50km左右的台阶；

There exists a high & conductivhy layer in the east side of Liao River depression area .

计算结果表明，该地区地壳的剪切模量不会超过全球平均值的60%，岩石层地幔的粘性系数不大于1.5×10~（23）Pa·s。

The results show that the shear modulus of the crust in that area is less than 60 % of the global average and the viscosity of the lithosphere mantle is less than 1.5 × 1023Pa .

Pb-Pb等时线显示出近于3.6Ga地幔事件。

The Pb - Pb isochron yielded information on a mantle event of about 3.6 Ga.

它是大陆地幔低度部分熔融产生的碱性玄武岩浆，通过深部AFC混合，尤其是浅部结晶分异机制形成的。

They are formed from alkali basaltic magma that slightly melted out of continental mantle by AFC mixing in depth , especially by the fractional crystallization in shallow horizon .