峨眉山玄武岩地幔源成分及其变化的微量元素标志

根据峨眉山玄武岩系岩石的稀土元素、不相容元素特征，估计了产生其母岩浆的地幔源成分，在讨论了地幔平衡部分熔融和岩浆分离结晶过程中强不相容元素与一般不相容元素的比值变化后，提出用双对数图解来判别地幔成分、元素总分配系数及母岩浆形成时地幔熔融度的原理。根据Ｌａ，Ｃｅ和Ｓｃ，Ｙｂ在地幔－岩浆过程中地球化学特征，运用上述原理，讨论了峨眉山玄武岩系母岩浆的地幔成分及其变化，计算了地幔矿物相组成和部分熔融度。     

粤东中生代花岗质火山-侵入杂岩成因的Nd同位素制约

运用Ｎｄ同位素及稀土元素Ｎｄ的含量关系对岩浆成因的制约,结合区域地质地球化学特征,确定粤东地区中生代花岗质火山－侵入杂岩的成因机制,不是幔源岩浆同化地壳物质并发生分离结晶作用以及壳幔两种来源岩浆的混合作用,而是地壳深熔作用,即古老地壳基底岩石的部分熔融作用。     

达拉布特型碱性花岗岩形成和演化的某些问题探讨

结合岩石的地质地球化学特点 ,通过岩浆动力学的分析 ,提出 :达拉布特型碱性花岗岩是在玄武岩浆侵入作用下源区岩石部分熔融形成的岩浆演化的产物 岩石形成过程中出现的混合 (染 )作用主要发生在源区县以分层对流方式进行 形成岩石Eu负异常的长石的分离作用发生在岩浆萃取和源区岩石部分熔融阶段     

四川南江坪河超基性-碱性岩体矿物学与地球化学研究

对四川南江坪河岩体的主要造岩矿物、岩石化学、微量元素和稀土元素地球化学,以及同位素进行了研究。结果表明钛铁霞辉岩、霓霞岩和磷霞岩具有明显的演化趋势,形成于较高的温压条件下,是一个成因密切的岩石系列。霞石正长岩,碱性正长岩和闪长岩则与之既有相似之处又有区别。据Ｓｒ、Ｎｄ同位素和稀土特征推测,该岩石系列可能由交代地幔高程度批式熔融形成,而霞石正长岩等则为同源岩浆晚期结晶分异的产物。     

中条山西南地区基性岩墙群的地球化学特征及其地质意义

根据岩石学和地球化学组成分析, 分3组讨论了中条山西南地区辉绿岩岩墙群的成因。结果表明: 它们都是富集地幔源区源岩部分熔融的产物。第1组岩墙是初始岩浆经历少量的铁镁质矿物分离结晶作用的产物; 第2组和第3组岩墙是玄武质岩浆又经历壳幔岩浆混合和斜长石、钛磁铁矿等分离结晶作用的产物; 第3组岩墙可能受地壳混染和后期热液蚀变的影响较大。它们都形成于板内伸展环境, 可能与熊耳?中条拗拉谷的发育有关。     

山西临县紫金山碱性火山机构岩体岩浆演化——岩相学及岩石矿物学的证据

目的通过分析紫金山碱性火山机构岩体的岩相学及岩石矿物学特征来研究其岩浆的演化关系。方法在野外工作的基础上,进行室内显微镜观察分析。结果紫金山碱性杂岩体是华北地台西部、鄂尔多斯地块东缘,活动期在早白垩纪的一个点式火山机构。岩相学上主要表现为由深成相岩瘤或包体、超浅成相、火山颈相和少量熔岩组成。岩性上主要发育碱性系列和偏碱性系列两个系列岩石类型。碱性系列与偏碱性系列展现出不同的矿物组合。结论紫金山碱性杂岩体所有岩石类型原始岩浆可能来自两个旋回性质不同地幔条件的部分熔融,派生出8次分期岩浆活动。第一旋回两种性质的原始岩浆在上侵运移过程中有有限混合现象发生。混合的结果使得二长岩中次透辉石中霓石分子的含量增高,显微镜下成绿色,角闪正长岩的正长石斑晶中出现霓石嵌晶,应该为粗安岩的喷出相岩石演化成了粗面质火山岩。碱性系列霞辉正长岩中霓辉石结晶成了次透辉石,使得形成岩石的碱度下降。第二旋回原始岩浆上行过程中有霓霞钛辉岩、正霞正长岩、白霞正长岩的分离结晶作用发生。     

甘肃白银厂矿田早中寒武世酸性火山岩成因及源区特征的地球化学制约

从白银厂矿田早中寒武世酸性火山岩的地球化学研究入手，对其成因和源区特征进行了比较深入的探讨，认为本区酸性火山岩的源岩应是玄武岩和含水辉长质岩石的部分熔融形成的安山岩，源岩安山岩部分熔融形成该区流纹岩，而英安岩主要由流纹岩浆或与玄武岩浆混合或发生不明显的分离结晶形成．早-中寒武世，该区酸性火山岩的成岩环境为火山弧环境，当洋壳俯冲进入深处时，由于俯冲板片的脱水导致上地幔楔部分熔融形成源岩玄武岩，同时富水的流体萃取洋壳中的大离子亲石元素、轻稀土元素向上进入楔形地幔，使地幔橄榄岩富集大离子亲石元素．地幔中流体的增加导致下地壳中辉长质岩石的部分熔融形成了该区流纹岩的源岩--安山岩．熔融地幔底辟上升，由于高热流而引起下地壳局部熔融和混染，使该区酸性火山岩又具有陆壳混染的特征．     

安徽月山地区间长岩类岩浆结晶的物理化学条件研究

本文通过岩浆体系的温度－水逸度及岩石熔融曲线关系、岩浆岩典型矿物组合、矿物成分等与物理化学条件的相互关系，确定了月山地区闪长岩类岩浆结晶的水逸度、水压、定位压力和深度以及温度、氧逸度和氢逸度，构筑了区域侵入岩的Ｔ－ｆｏ２图解，并讨论了岩浆结晶的物理化学条件与成矿作用的联系．     

青藏北羌塘新第三纪玄武岩单斜辉石地球化学

目的通过玄武岩中单斜辉石成分及微量元素地球化学的研究,探讨岩浆源区性质及其大陆动力学意义。方法利用电子探针和激光探针剥蚀技术,分析了北羌塘半岛湖新第三纪粗面玄武岩中单斜辉石斑晶的常量、微量及稀土元素特征。结果单斜辉石主要为透辉石和顽透辉石种属,是玄武岩浆上升过程中逐步结晶的产物;矿物中富集Rb,Sr,Ba,Zr,Hf,Nb和Th,U,Pb,并存在Sc,Ti,V等铁族元素的低度富集,稀土元素总量平均857×10-6,轻重稀土分异显著,轻稀土强烈富集,无明显铕异常。结论单斜辉石是玄武质岩石中痕量及稀土元素的重要赋存矿物相。     

雾灵山A型花岗岩系的矿物学特征及成因意义

雾灵山杂岩体由似斑状碱长正长岩及其中的岩石包体、碱性石英正长斑岩、碱性石英正长岩等岩石组成，是冀北地区白垩纪岩浆活动的代表。本文以岩相学工作为基础，讨论了这些岩石中主要造岩矿物的结晶顺序和共生关系，报道了它们的成分特点和演化趋势，推测了不同矿物结晶时的温度、压力、氧逸度、含水量等生成状态和条件，并探讨了由它们所反映出的岩浆演化历史、特点和岩石成因系列归属问题。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that