内蒙古大兴安岭加疙瘩物化探异常及资源潜力评价

研究区位于我国重要的金、铜、铅、锌等多金属成矿区,在分析研究区地质、物化探特征的基础上对研究区资源潜力进行评价.研究区矿化程度较低,加之深部没有控制.首先应加强区域性构造的研究,研究区域构造格架,建立区域构造体系,对控矿构造进行理定.采用构造地质法、原生晕地球化学方法、高密度电法测量等综合方法进行研究区资源潜力的评价....     

长田地区铀矿地质特征及前景分析

长田地区铀矿主要赋存于长田复向斜盆地中的南雄群含炭质、沥青质和花岗质的砂岩中,矿石的自然类型为沥青铀矿-黄铁矿型。论述了长田地区铀矿的区域地质背景、矿区地质特征以及铀矿控矿因素等,对找矿前景进行了分析。     

内蒙古鄂伦春旗某钼多金属矿矿床地质特征及找矿前景分析

内蒙古鄂伦春旗某钼多金属矿位于内蒙古自治区东部,区域大地构造位置为华北板块与西伯利亚板块结合部附近,次级构造位置为西伯利亚板块南侧岛弧火山岩带。在近年找矿工作所发现,利用少量山地工程和一个验证钻孔,发现数层钼、铜矿体。矿体赋存于二叠纪花岗岩中,受岩体接触带的控制,已初步发现矿体16条,厚度最小1.2,最大17.45,品位为0.03%~0.618%。据现有物化探资料分析含矿花岗岩存在两期活动,后期上侵形成的小岩枝及与早期岩体的结合部位是良好的成矿场所,具备斑岩型成矿条件。找矿潜力巨大。     

内蒙花山405铀矿微量元素地球化学特征及地质意义分析

内蒙古花山405矿点的微量和稀土元素能为铀矿勘查提供地球化学标志。通过对该地区矿化岩石和围岩分别采样,共对30个微量元素和14个稀土元素进行了对比分析,总结了该地区微量元素和稀土元素的地球化学特征。研究表明,该山群富集W、Re、Ba、Th、U、Pb等元素,而Li、Be、V、Ni、Cu、Rb、Zr、Nb、Mo、In、Cs、Tl、Bi等元素亏损;微量元素在矿化岩石中含量较高,在围岩中相对贫化;此外,该地区稀土元素地球化学特征表现为轻稀土富集,重稀土亏损;Eu在铀矿化岩石中显示弱正异常,在围岩中显示弱负异常,Ce基本没有异常。     

地质矿产勘查中综合物化探技术应用

综合物化探技术是一种将地球化学、地球物理和地质相结合的综合物化技术，可以有效地记录各种元素的同位素和微量元素，为地质勘查工作者提供科学依据。此外，这项技术还具有操作简单、效率高、造价低廉的优点，并且在探测范围广泛，不仅适用于区域地质调查、非金属和金属矿产的勘探，还可用于能源勘探。因此，在我国的地质勘探工作中，该技术应用非常广泛。     

充分发挥物（化）探在新的一轮找矿中的核心作用

江苏省地处中国东部杨子准地台区,在全省10万多平方公里面积内,第四系覆盖面及江河湖泊分布区约占总面积的93%,基岩出露区仅占7%。这一特殊的地理地质景观环境决定了物化探在矿产普查的地质工作系统工程中占居了十分重要的地位。找矿实践也表明了在江苏省金属矿勘查中所起到的积     

大塘畲地区铀矿矿化特征及找矿潜力分析

大塘畲地区的铀矿化主要赋存在上白垩统叶塘组上段e层晶屑凝灰岩以及喷出岩集块熔岩、球粒流纹岩中,受岩石裂隙及层间破碎带控制;区内铀矿体形态较简单,呈似层状.文章论述了大塘畲地区铀矿的地质背景、地质特征以及控矿因素,对找矿前景进行了分析.     

铀矿找矿前景及找矿方向分析

因为铀矿的储量是核电事业发展的必备条件,所以对于铀矿的开采前景以及找矿方向是重中之重。根据相关数据分析地质条件,结合实际探索铀矿的开采发展前景。对于深度找寻铀矿资源以及勘测铀矿资源的开采方面采取很多措施方法,一般采用的方法有:地质学方法、地球化学方法、地球物理方法。     

白银厂矿田及小外围物化探找矿的初步总结和讨论

本文系统地收集了白银厂矿田及小外围４０年的物化探找矿及研究资料。通过研究划分出三个找矿阶段。其结果是找矿工作收效甚微、分析原因主要有五个方面引起。     

四川西部雀儿山-措交玛花岗岩体放射性地球物理特征及下一步找矿方向

以义敦岛弧北部雀儿山-措交玛花岗岩体为研究对象,系统地开展了1∶25万～1∶5万地质调查、地面伽马能谱面积测量、综合地质物探剖面测量,探槽编录以及剥土编录工作。取得以下认识：大致了解了区内主要地层(岩性)放射性元素含量背景值及其分布规律,初步确定了雀儿山和银多地区2片铀成矿有利地段。其中,雀儿山地区放射性高场集中分布于雀儿山构造蚀变带及其外围,与北北西向断裂构造走向相吻合,热液蚀变发育;银多地区放射性高场集中分布于银多铀矿点及其外围,其展布方向与北西-南东向达郎松沟断裂走向相吻合,受构造热液活动控制,为区内下一步铀矿勘查提供了依据。     

激发极化法在下庄铀矿田的应用研究——以竹山下铀矿床为例

下庄矿田是我国花岗岩型铀矿资源的重要产地,铀矿化主要赋存于构造(硅化)破碎带及两侧蚀变花岗岩中且与黄铁矿等金属硫化物关系密切。物性标本测试显示构造蚀变岩石普遍呈低阻、高极化,而正常岩石则呈高阻、低极化,具有显著的物性差异利于激发极化法的开展。通过对已知矿床的激发极化法勘查试验,证实利用激发极化法寻找构造蚀变带型铀矿是有效的。结合区域铀成矿特征及方法有效性试验结果,初步建立了“低阻、高极化”构造蚀变带找矿模式及“高阻、相对高极化”的红、黑色微晶石英脉型找矿模式。     

"Non-condensed" and "condensed" chromain in transitional cell carcinoma of the human urinary bladder

The area and content of "non-condensed" and "condensed" chromatin in smeared Feulgen-stained malignant urothelial cells were determined by means of scanning-cytophotometry. The results were compared with those from similar measurements of benign human transitional epithelial cells. There was no difference between the relative area and content of "non-condensed" and "condensed" chromatin in cancer nuclei and normal urothelial nuclei as far as nuclei of the same size and ploidy class were considered. Within the same ploidy class the relative area and content of "non-condensed" chromatin increased with increasing nuclear size. As increased nuclear size within the same ploidy class is typical for most cancer cells, cancer specimens therefore contained relatively more "non-condensed" chromatin than normal urothelium. Analogously the relative values of "condensed" chromatin decreased in cancer specimens. Only in high-polyploid cancer cells, which occurred more frequently in undifferentiated tumours, a slight decrease of the relative area and content of "non-condensed" chromatin was observed as compared with well differentiated diploid tumour cells. It was in polyploid tumours that the absolute area and content of "condensed" chromatin was increased as compared with diploid normal urothelium. This means that the changes in "non-condensed" and "condensed" chromatin were primarily dependent on nuclear size and total chromatin content and were not found to be a characteristic of cancer nuclei as compared with control nuclei of the same size and ploidy. These findings differ from the results of biochemical analyses of heterochromatin both in cells during carcinogenesis and also in cancer cells, but are in agreement with qualitative and quantitative morphological studies of smeared cancer nuclei.     

Faking "chance" on the SVIB.

Are scores that fall within the so-called "chance" areas of certain occupational scales of the Strong Vocational Interest Blank for Men (SVIB) "easily obtainable by chance"? To answer this question, Ss were selected whose scores, under standard testing conditions, were either higher than chance, lower than chance, or in the chance area itself. These Ss were then instructed to "fake" directionally (in the direction of the chance area) and to "fake chance." The results indicated that Ss who can fake directionally cannot fake chance, even when the chance range is in the same direction as the one they have faked. It was concluded that rather than ignore scores within the chance area, it may be better to ignore the chance areas themselves. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

河南商南—洛南地区“三稀”及铂族元素异常特征及找矿潜力

“三稀”及铂族元素均为现代高精尖科学技术的重要战略资源。通过对河南省商南—洛南地区地球化学资料的综合整理研究,查明了“三稀”及铂族元素富集分异特征,圈定综合异常13处;根据研究区地球化学异常特征,结合地质特征及成矿作用,划分2处地球化学分区,6处地球化学子区;圈定B级和C级找矿远景区各1处,对各找矿远景区作出了初步评价解译,为研究区“三稀”及铂族元素矿产勘查提供了大量地球化学信息。     

Neoliberalism, "globalization," unemployment, inequalities, and the welfare state

This analysis of "neoliberalism" and its economic and social consequences is presented in six sections. Section I begins by describing the impact of neoliberal public policies on economic growth and inflation, on business profits and business investments, on productivity, on business credit, on unemployment and social inequalities, on social expenditures, and on poverty and family debt. The author shows that, except in the area of business profits and control of inflation, neoliberal policies have not proved superior to those they replaced. Section II deals with unemployment and social polarization in the developed capitalist countries. The author criticizes some of the theories put forward to explain these social problems, such as the introduction of new technologies and globalization of the economy, and suggests that a primary reason for these problems is the implementation of neoliberal policies. Section III challenges the widely held neoliberal perception that the U.S. economy is highly efficient and the E.U. economies are "sclerotic" due to their "excessive" welfare states and "rigid" labor markets. The author shows that the U.S. economy is not so dynamic, nor the E.U. economies so sclerotic. Some developed countries with greater social protection and more regulated labor markets are shown to be more successful than the United States in producing jobs and lowering unemployment. The reasons for the growing polarization in developed capitalist countries, rooted in political rather than economic causes, are discussed in section IV--especially the enormous power of the financial markets and their influence on international agencies and national governments, and the weakness of the labor movements, both nationally and internationally. Section V questions the major theses of globalization. The author shows that rather than globalization of commerce and investments, we are witnessing a regionalization of economic relations stimulated by political considerations. He also analyzes the globalization of capital finance, criticizing the thesis that capital markets are determining public policies. The economic determinism that underlies the globalization position is questioned, uncovering the importance of political explanations for understanding major social problems such as unemployment. Finally, section VI shows that neoliberal public policies on the deregulation of labor markets are creating enormous instability in the labor force, worsening the living conditions of the majority of the populations.     

Reduced growth hormone responses to amphetamine in "endogenous" depressive patients: studies in normal, "reactive" and "endogenous" depressive, schizophrenic, and chronic alcoholic subjects

Several pharmacological stimulation tests of the pituitary-hypothalamic system have been used to investigate psychiatric disorders. This study introduces amphetamine sulfate as a stimulus for human growth hormone (HGH) release in various psychiatric patients. Peak HGH release after a single intravenous administration of amphetamine sulfate, 0.1 mg/kg, was significantly lower in nine "endogenous" depressives (P = .01) and significantly higher in seven "reactive" depressives (P less than .05) as compared to normal subjects, whereas peak HGH release in eight schizophrenics and six chronic alcoholics did not differ significantly from that in normal subjects.     

Effect of trials on "emotionality" behavior of the rat and mouse.

Exposed Sprague-Dawley rats and A/Jax, C57BL/18, or DBA/1 mice repeatedly to open-field, emerge-from-home-cage, and runway "emotionality" tests. The 7 experiments indicated that times to emerge from the home cage and reach the end of a runway decreased consistently over trials. Over-field activity and defecation and the tendency to enter the open field's center area were not consistently affected by trials, however. Fear of the novelty of the open field, area outside the home cage, and runway should habituate over trials. Results suggest that emerge and runway times are more affected by fear of novel stimuli than are open-field activity and defecation and the tendency to enter the open field's center area. (28 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A comparison of "dreamers" and "nondreamers": Eye movements, electroencephalograms, and the recall of dreams.

Research had established that rapid eye movement during sleep was correlated with dreaming, and both to light sleep as defined by EEG reactivity. In an attempt to cross validate these findings, Ss were selected as to whether they generally recalled dreaming. Ss slept in a laboratory setting wherein electro-oculograms and EEG's were taken during the period of sleep. Ss were awakened when the characteristic eye movement suggesting dreaming was observed, and during periods of quiescence. Recall of dream activity during both was solicited. Results suggest that "dreamers" manifest more ocular movement and reports of dreaming during periods of eye movement than "nondreamers." (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

锡矿山南矿"三下"采矿技术研究

介绍了锡矿山南矿30多年“三下”采矿所取得的成功经验和研究成果。这些经验和成果可为类似条件的矿山所借鉴。