文山某矿区综合物探方法寻找沉积型铝土矿的应用与研究

针对文山地区沉积型铝土矿体的成矿条件,可运用物探方法进行间接寻找.在文山某矿区,通过激发极化法与音频大地电磁法相结合的物探方法,成功地寻找到沉积型铝土矿体,物探异常验证见矿情况较好.因此,本次工作也成为综合物探方法寻找沉积型铝土矿的成功案例.经分析研究,认为本次寻找沉积型铝土矿的物探方法组合,可推广至文山地区同类型的矿区.     

左权县清河店铝土矿矿床地质特征及找矿靶区

研究了山西省左权县清河店矿区铝土矿地质特征、矿床特征、矿物成分、矿石品位、矿石类型、矿床成因及矿体埋藏条件,得出了矿体平面呈多矿体、形态不规则、厚度较稳定,矿石品位较高,类型以碎屑状铝土矿为主,成因属沉积型铝土矿矿床,矿体埋藏较浅等结论,提出了下一步在成矿条件和开采条件较好的Ⅰ～Ⅵ号矿体继续进行铝土矿勘查工作的建议。     

河南省新安县石寺矿区煤下铝成矿规律浅析

本文介绍了新安县石寺铝土矿区区域地质特征、矿区地层、构造及矿床特征。通过对本区成矿地质特征、矿石的物质成分、化学成分、结构构造、以及物质来源的的分析研究，简单分析了煤下铝的成矿规律，对煤下铝的勘查与找矿方向具有一定的意义。     

山西原平红池一带铝土矿矿体地质特征及其成因

介绍了山西原平红池一带铝土矿矿区地质特征、矿体地质特征,分析了铝土矿矿床成因及找矿的主要标志.     

沁源县高家山矿区铝土矿地质特征及资源潜力评价

山西省沁源县高家山矿区铝土矿矿体赋存于石炭系本溪组中下部、奥陶系石灰岩侵蚀面之上,受古地形控制,矿体总体由西向东埋藏由浅到深,在奥陶系地层出露部位附近矿体以露采为主,远离奥陶系地层出露部位以坑采为主。文章在研究沁源县高家山矿区成矿地质背景、矿区地质特征和化学特征的基础上,分析了该区域的找矿资源潜力及远景     

麦坝矿区缓倾斜铝土矿采矿方法探讨

我国铝土矿以露采为主，地下开采较少，本文针对中铝贵州分公司麦坝矿区铝土矿赋存条件，结合国内外采矿方法现状，提出采用房柱法进行开采，对回采工艺进行了描述。     

西非某大型红土型铝土矿环境地质调查

本文根据作者在西非某大型红土型铝土矿环境地质调查的工作实践,以矿区的气象、水文及地层条件为基础,结合地质灾害的诱发因素,分析了该红土型铝土矿的环境地质条件,确定了矿区为地质灾害不易发地区,并为将来的矿山开采工作提出了地灾防治建议.     

浅议宜黄大王山钨多金属矿成旷特征及找矿方向

本文通过对宜黄县大王山鸪矿区地层、构造、成矿特征进行分析,对比周边众多矿(化)点的成矿条件及成矿规律,阐明本区多金属找矿的思路.     

铜川市陈炉铝土矿区地质特征及找矿前景浅析

陈炉铝土矿是沉积型矿床,成矿与沉积环境有关,特别是石炭系本溪组含铝岩系地层赋存铝土矿,属浅海—泻湖相沉积,是重要的铝土矿沉积环境。铝土矿位于马家沟组灰岩的古风化壳之上。     

云南鹤庆白水塘铝土矿地质特征与成因分析

白水塘地区铝土矿赋存于上三叠统中窝组下部(T3z1-2),其分布在构造条件相对稳定的洼地,具一定时期的沉积间断.沉积相为局限海湾一泻湖一沼泽相.下伏地层为中三叠统北衙组灰岩.矿床成矿条件表明,该区具有一定的找矿前景.区内构造简单,古岩溶洼地对成矿有利.     

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.     

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.     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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