甘肃省成县徐明山铅锌矿地质特征

矿区所处大地构造位置为昆仑秦岭地槽褶皱区秦岭褶皱系的礼县-榨水海西冒地槽褶皱带中部。褶皱区北部为塔里木-中朝地块,南部为扬子地块。徐明山铅锌矿床位于西成铅锌矿田的东北部。矿区出露地层主要为中泥盆统安家岔组(D2a)呈北西西向展布。按岩性组合和含矿性,安家岔组可分为厂坝层(D_2a~1)和焦沟层(D_2a~2)。北矿带以大理岩、黑云母方解石英片岩为主,夹石英岩,南矿带以条带状大理岩、条带状白云石大理岩、中厚层白云石大理岩夹中粗粒大理岩层为主。矿体产在一定层位,呈似层状、透镜状与围岩整合产出,矿石具变晶结构、交代溶蚀结构,细脉状及团块状构造。矿床宏观上具有明显的沉积矿床特征,微观上具有热液矿床特征,因此矿床应属沉积受变质层控型铅锌矿床。     

甘肃省西和县小东沟金矿床地质特征及找矿前景探讨

通过对小东沟金矿床地质特征的分析研究,初步认为该矿床属于受构造破碎带控制的层控沉积-变质矿床。矿体产于中泥盆统安家岔组(D2a2-1a)地层中,受层位和层间断裂破碎带控制,含矿岩石为石英脉、硅化灰岩和含铁方解石石英脉。基于以上的认识,探讨了小东沟金矿的找矿前景,指出了找矿方向。     

甘肃西成铅锌矿集区金矿成矿条件及找矿方向

西成铅锌矿化集中区已发现多处中小型金矿床(点),主要矿化类型有微细浸染型和石英脉型,代表性矿床有安家岔金矿床和小沟里金矿床。综合研究表明,中泥盆统安家岔组和西汉水组是主要矿源层,岩浆活动为成矿提供热动力条件和部分成矿物质,层间破碎带及构造交汇部位矿化富集。"攻深找盲"是今后勘查的主攻方向,同时,应注意在铅锌矿床外围有利的构造部位及有岩浆或深源热液活动的部位找矿。     

甘肃省徽县郭家沟铅锌矿床特征及矿石特征浅析

郭家沟铅锌矿床含矿地层为中泥盆统安家岔组焦沟层上部层位(D_2a~(2-2)),矿体主要赋存在(D_2a~(2-2b))层绢云千枚岩中的灰岩透镜体和(D_2a~(2-2b))层绢云千枚岩与(D_2a~(2-2a))厚层灰岩接触带的灰岩一侧。该矿床矿石均为硅质岩型硫化铅锌矿石,矿石中矿物组成较为简单,主要为闪锌矿、方铅矿等,呈自形-半自形、它形粒状结构,不规则网(脉)状构造常见。通过大量钻孔岩芯观察和光薄片等岩相学研究,大致将郭家沟铅锌矿床成矿期分为热水沉积期和改造期。     

褶皱构造对七宝山铅锌矿石质与量的影响

褶皱构造对七宝山铅锌矿石质与量的影响江西省七宝山铁矿袁晓丹七宝山铅锌矿矿床受地层层位控制，呈层状，似层状合上，下两个矿带，７个矿体，上矿带位于壶天群中下部，下矿带位于锡矿山中上部，在余田桥─棋子桥组地层，目前，我矿开采“小境界”范围位于矿区中部银子洞...     

焦沟铅锌矿床地质特征及控矿条件浅议

焦沟铅锌矿床位于西成矿田中段,吴家山背斜西部倾伏端转折处南翼。地层属于中泥盆统安家岔组上部层。成因与生物点礁灰岩有密切关系,成矿类型属热水沉积弱改造型。该规模虽小,但成矿地质条件较为特殊。本文仅就其地质特征及控矿条件作一浅议。     

甘肃省西和县三洋坝金矿床地质特征及成因探讨

三洋坝金矿床位于西成铅锌矿田西部,秦岭褶皱系西秦岭海西褶皱带东段,矿体赋存于中泥盆统西汉水组地层中,受层位和层间裂隙控制,含矿岩石为石英脉及斑点状绢云母千枚岩和变砂岩,石英脉发育时,矿化强烈。为层控的热水沉积-变质矿床。     

甘肃省青羊峡铅锌矿矿床成因分析及找矿预测评价

青羊峡铅锌矿区地处秦岭构造带西成矿田的西南部，位于华北地块的南缘，在厂坝-页水河海西、印支期铅锌多金属成矿带上。矿体主要赋存层位是上古生界泥盆系西汉水群红岭山组的碳酸盐地层，矿体产状基本与其近矿围岩一致，严格受到层位控制。文章分析了该矿床的控矿地质条件及矿床地质特征，对矿床成因进行深度总结，认为该矿成矿过程经过了海西早期同生沉积期和印支期改造成矿期，矿床类型为热水喷溢沉积改造型。对比区域成矿规律，进行找矿预测评价，对矿山深部及外围找矿工作起着一定的指导意义。     

布拖县吉土落达矿区铅锌矿矿床地质特征及找矿前景

吉土落达铅锌矿矿区位于著名的"三江"构造成矿带,康滇地轴中段东侧,大地构造位置为扬子地台陆块西缘凉山陷褶束宁南凹褶束。矿床产于震旦系灯影组的上部白云岩内,区域性大断裂四开—交际河断裂从矿区内通过,区内的铅锌矿体产出特征严格受地层、构造控制。矿床成因为中低温热液充填型。提出了矿区地层、岩性、构造、围岩蚀变、地貌等找矿标志和下一步工作建议。     

甘肃省成县焦沟铅锌矿地质特征及矿床成因浅析

矿区位于秦岭东西纬向构造带中段,武都山字型构造体系东翼之复合部位。在西成铅锌矿田之厂坝铅锌矿床西部,东为庙沟铅锌矿床,西有人土山、邓家山铅锌矿床。区内之地层与构造均受东西纬向构造带及武都弧形构造的制约。初步认为本矿区属沉积再造矿床。     

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。     

焦炭热性能指标意义浅析

通过对焦炭在高炉内的历程及其变化规律的剖析,阐述焦炭热性能指标的意义,形象地把焦炭在高炉内的损耗分为三部分(M1,M2,M3)。指出M2对焦比及焦炭价格有一定的指导作用。     

Results of treatment of cancer of the cardia

Cancer of the cardia is traditionally discussed with cardiac cancer of the lower portion of the esophagus and upper gastric cancer invading the esophagus, and the specific characteristics of cancer of the cardia have never been clearly defined. We reviewed the outcome of 172 patients with adenocarcinoma of the cardia who had undergone radical surgery between 1949 and 1994 in the Division of Gastrointestinal Surgery of the Cancer Institute Hospital. The centers of the tumors were located within 2 cm above and below the boundary between the esophagus and the stomach, and their longitudinal diameter was less than 8 cm. We divided the patients into an early period (1949-1979; n = 79) and a late period (1980-1994; n = 93), and focused on the historical transition. There were no differences in patient gender or histology between the two periods. However, the late period was associated with fewer cases of esophageal invasion and shorter longitudinal diameter, as the age of the population advanced. The number of advanced cancers such as the localized and infiltrative type had decreased, and early cancer and early clinical stage had become more common, but despite the fact that the number of early cancers had increased, extended dissection, such as thoracic and paraaortic lymph node dissection, was performed more frequently. By clinical stage, the long-term outcome markedly improved in Stage I patient in the late period, and tended to improve in Stage II and III patients. This appears to have been attributable to the prevention of micrometastasis by extended dissection, although the number of early cancers is another major potential cause. There were no differences in the outcome of Stage IV patients between the two periods, and further advances in multimodality therapy must be awaited. The range of resection is basically proximal gastrectomy, and if there are adequate indications, the prognosis is favorable. In view of the status of lymphatic flow and lymph node metastasis, and long-term results, lateroaortic lymph node dissection is important. Since the number of early cancer patients has been increasing, if intraabdominal recurrence is prevented, intrathoracic lymph node dissection will contribute greatly to the outcome of such patients.     

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)     

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.