西藏晚二叠世妥坝地区煤变质作用研究

西藏蕴藏着丰富的矿产资源,是研究地球形成与演化的重要场所,本文在了解西藏区域煤系特征的基础上,系统搜集整理各种地质资料和研究成果,对西藏晚二叠世妥坝煤系特征与煤变质作用进行了初步分析,妥坝含煤岩系为上二叠统妥坝煤系,煤层属极不稳定煤层,煤岩以亮煤、镜煤为主属光亮~半亮型,通过分析煤系含煤性变化,可以得出含煤性与煤系地层中粉砂岩含量成正性相关关系,区内煤变质作用主要以深成变质为主,其次为动力变质和岩浆热变质作用。     

新疆温宿县阿托依纳克煤矿煤层厚度变化特征

新疆温宿县阿托依纳克煤矿位于库拜煤田的西端,广泛发育着中生界侏罗系含煤地层,煤炭资源较丰富,本文通过以煤矿地质勘查资料为基础,以煤田地质理论为指导,对煤矿的煤层厚度变化进行了分析研究。     

华北陆块南缘曲梁煤矿滑动构造及其成因

通过对煤矿滑动构造的研究,目的是进行煤层断开后的正确恢复与对接,从而客观圈定和估算矿体资源量,正确投入矿山开发设计;这首先就要了解滑动构造的组成。曲梁煤矿滑动构造由滑动面、下伏系统和滑体三部分组成。滑动面:呈凹月面形,浅部斜切岩层,深部在二1煤层上下波动,滑动面上下均出现较厚的构造破碎带;下伏系统:主要有奥陶系、石炭及二叠系底部的砂泥岩组成,其层位均在二1煤层下面起着基盘作用;滑体:位于滑动面之上,主要由二叠系二1煤层以上地层组成,为滑动构造的运动部分。滑动构造的运动方向系多次性来回运动,其证据有:在滑动构造范围内全部为地层缺失,构造带既出现糜棱岩、断层泥等压性特征,同时又出现角砾岩的张性特征,先压后张的规律明显。滑动构造的成因系由燕山早期侏罗纪南北向挤压,煤系地层首先形成褶皱构造,大致以二1煤层为界形成滑动构造,整个地质体分割成上下两部分,在重力和地壳挤压的双重作用下,滑体向滑动至最低点后又随惯性滑向对面滑面斜坡,随后又向回滑,这样来回振荡滑动,状似阻尼单摆运动。燕山晚期早白垩世地壳运动由挤压转为伸展,形成高角度正断层切断了滑面的连续性,使二1煤层错断并下降300~600 m,滑动构造终止。这是通过大量钻探资料的总结得出的认识,有助于地质工作者参考该思路寻找构造缺失的煤矿层,使得我们的矿产地质勘查评价更具合理性。     

浅析滇东阿岗煤矿区煤系地层沉积环境及聚煤规律

通过阿岗煤矿区近年来的煤炭资源勘查工作,着重研究该区的煤系地层,同时结合区域规律进行阐述阿岗煤矿区煤系地层沉积环境及聚煤规律。     

6m焦炉配用艾矿中煤返洗煤的生产实践

八钢焦化已实现全疆内煤炼焦,自有煤矿焦煤可以全部使用。由于自有煤矿出现煤层过断层等原因,产量明显降低。为控制焦炭成本保证焦炭质量,针对自有煤矿中煤返洗煤配加开展了60kg试验焦炉配煤炼焦试验研究,确定了配煤结构并应用于生产实践。     

柳江盆地西翼含煤岩系特征及构造控煤作用研究

柳江盆地西翼含煤地层主要分布在石炭系上统太原组,二叠系下统山西组及侏罗系下统下花园组。在前人研究的基础上,总结含煤地层的展布特征,详细论述了逆冲推覆构造的确定及其控煤特征,探讨了柳江盆地及其西翼逆冲推覆构造形成的演化模式,对该区煤层勘探开发具有一定的指导意义。     

高密度电阻率法在地表强干扰区对采空区探测的应用

在特定的环境下,不同物探方法具有不同的探测效果,山西阳泉郊区某镇棚户区,该区90年代有煤层采掘活动,人类工程活动剧烈,民用线路错综复杂,但该区有煤层埋深浅、上层第四系地层厚度薄、接地条件较好等特点,适宜用高密度电阻率法来追踪煤层采空区,以阳泉某棚户区改造工程采空区探测为例,说明高密度电阻率法是找煤层采空区的一种行之有效的手段。     

大城一号井田主要可采煤层分布特征分析

大城煤炭勘查区是河北省重要的煤炭能源储备基地之一,自二十世纪七十年代以来华北石油在大城周边进行石油勘探时发现了含煤地层,随后河北省煤田地质局在大城县一带开展了找煤工作,证实该区含有丰富的石炭～二叠纪的煤炭资源。2003-2021年相继开始了该区的煤炭普查、详查、一号井田勘探、与正在持续施工的三号井田勘探等工作。初步查明大城勘探区-1500m以浅的煤炭资源量55万万吨,煤炭资源丰富。通过对大城一号井田煤炭资源调查及主要可采煤层厚度分析,了解该煤田的各主要含煤层厚度、埋深、分布及稳定性,总结出各主要含煤层的分布特征。     

双阳盆地三叠系煤系泥岩烃源岩特征与页岩气勘探潜力

双阳盆地三叠系发育一套河流-湖沼相的含煤地层,发育煤系烃源岩,构成一套有勘探价值的层系。为了研究双阳盆地三叠系煤系泥岩烃源岩特征与页岩气勘探潜力,在双阳盆地的双参1井和野外露头,采集了上三叠统的煤系泥岩、炭质泥岩和煤三种类型的烃源岩样品,进行了暗色泥岩、碳质泥岩以及煤的有机丰度、类型、成熟度和岩石学特征研究。结果表明:双阳盆地三叠系烃源岩有机质丰度达到中等烃源岩有机丰度水平,有机质类型主要是Ⅲ型,烃源岩处于成熟—高成熟阶段,岩层脆性较高,可以作为页岩气储层。总之,双阳盆地三叠系煤系烃源岩具有一定生烃潜力,而且可以成为页岩气储层,具有良好的含油气远景。     

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江西发现中型规模煤矿储量约2亿吨1月11日,江西省紧缺和优势资源保障工程首期地质找矿项目取得重大成果。其中,新余市梅山煤矿的勘查实现了红盆地下隐伏区找煤的重大突破,勘查发现这一矿区可新增原煤资源储量约2亿吨,达中型规模,在南方缺煤省份实属罕见。据江西省国土资源厅通报,新余     

The effect of amount of possession of the trait of hostility on accuracy of perception of hostility in others.

Some theories of personality hold that an individual's perception of others is influenced by his own personality characteristics; more specifically, that a trait of low social value will be projected more into others, and that insight into the possession of these characteristics reduces this distortion. These 2 hypotheses were tested by having a group of college students rate each other (including themselves) on degree of friendliness or hostility. Agreement with group rating about self yielded the insight score. In general, the hypotheses were supported; the "friendly" Ss were most accurate in their perception of others, and insight was positively associated with accurate perception. From Psyc Abstracts 36:04:4HL16M. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Comparison of rates of infection of two methods of emergency ventricular drainage

The rates of infection of two methods of external ventricular drainage in use at Atkinson Morley's Hospital--namely, (a) percutaneous drainage with Rickham reservoirs and (b) tunnelled ventriculostomies--were compared in this retrospective review. Percutaneous drainage of CSF with Rickham reservoirs was associated with a 27% rate of infection as identified by positive microbiological cultures; tunnelled ventriculostomy catheters had a 10% infection rate. The difference in the infection rate between the two methods was statistically significant (P < 0.015). Other variables examined, including the age and sex of the patients and the reasons for ventricular drainage, were not associated with an increased rate of infection. Most infections from either method were caused by a coagulase negative staphylococcus. The average duration of ventricular drainage before identification of positive cultures was 5.7 days for Rickham reservoirs and 6.0 days for ventriculostomies.     

Effect of antibiotics of chemotaxis of human leukocytes

The effect of 20 different antibiotics on chemotaxis by human neutrophils was studied. Human leukocytes incubated with chloramphenicol, rifampin, sodium fusidate, and tetracyclines in vitro showed markedly depressed migration. The mechanisms by which these antibiotics affect leukotaxis are discussed.     

Quality of life of relatives of mental patients

Usage of quality of life of psychiatric patients' relatives as the parameter of estimation of the quality of psychiatric care is considered. By means of standard questionnaire elaborated by the authors as well as by means of both individual and group conversations the quality of life was analyzed in 40 relatives which lived together with psychiatric patients. Different spheres of their life and difficulties (financial, social-psychologic, production) were examined in families with such patients. The defects of psychiatric care that had direct influence on the quality of life of the psychiatric patients' relatives are outlined.     

浅析《野草》的版画特征

鲁迅先生一生热爱美术作品,对版画中木刻兴趣尤甚.<野草>作为其"写心之作",亦呈现出一些与木刻版画一致的审美特征:一是具有木刻版画的色彩特征,多对比、多冷色,有阴郁的美感;二是具有木刻版画的力度特征,环境描写、人物刻画处处刀锋毕现,遒劲有力,有一种"力之美".     

四辊破碎机车刀架的改造

针对四辊破碎机车刀架车削中存在的几个问题,详细介绍了电动车刀架的结构和工作原理,建立主要设计参数的数学表达式,并进行适当的分析。改造后,这种电动车刀架运行平稳、可靠、方便、省力,取得了预期的效果。     

转炉炉壳热应力分析

根据实际转炉建立实体模型。以有限元为手段,考虑了炉衬和炉壳材料的物性参数随温度变化的特点和炉衬与炉壳之间膨胀间隙,计算了转炉炉壳在温度载荷和炉衬膨胀压力同时作用下的热应力。所得结果可为转炉炉壳设计提供依据。