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1.
基于青海东昆仑区域地层与构造情况,对区域矿床(点)类型、典型矿床地质特征及成矿规律等成矿地质特征进行分析,并提出区域金矿找矿模式与找矿方向,为今后找矿工作提供参考与指导。  相似文献   

2.
在综合分析浒坑钨矿成矿地质背景和矿床地质特征的基础上,阐述了与成矿关系密切的浒坑岩体(白云母花岗岩)岩石地球化学特征、花岗岩成因;论述了区域构造活动与成岩、成矿作用关系,进而探讨了矿床成因与成矿模式;并评价了找矿潜力,提出了深部找矿方向。  相似文献   

3.
由于甘肃徽县九条沟金矿地质条件比较复杂,至今没有明确其成矿地质特征以及找矿方向,为此提出甘肃徽县九条沟金矿成矿地质特征及找矿方向探讨。首先分别从地层、构造、矿床以及岩浆岩四个方面对甘肃徽县九条沟金矿成矿地质特征进行了总结,其次根据甘肃徽县九条沟金矿构造和地层两个控矿因素,确定了两个找矿方向,以此完成甘肃徽县九条沟金矿成矿地质特征及找矿方向探讨。  相似文献   

4.
根据最新的勘探成果,本文从地层特征,岩浆岩,构造和矿化变化等方面分析了矿床的成矿条件。找矿方向确立,为深部找矿和区域找矿提供了重要信息和找矿思路。  相似文献   

5.
通过对矿床的地质特征及诸多因素综合研究,认为花坤铜多金属矿属于构造—矽卡岩型矿床。归纳成矿与花坤杂岩体、围岩及旋卷构造的关系,总结成矿规律,探讨找矿方向。  相似文献   

6.
针对矿床研究和深部资源勘查方法难以探测成矿斑岩体的问题,提出了矿山地质中的矿床变形特征及成矿控制研究。从宏观和微观变形角度分析矿床变形特征,根据矿山地质断裂上下盘相对运动方向,判断剪切指向和运动学特征。根据各个矿体特征,确定劈理、面理、片麻理构造控矿因素;分析成矿前和成矿期的褶皱,确定褶皱构造控矿因素。依据成矿控制因素,判断成矿斑岩和矿体,为矿山地质找矿提供依据。  相似文献   

7.
田莉玉  臧兴运 《黄金》2009,30(9):16-20
通过分析矿床地质特征,认为小石人金矿床具有与区域上荒沟山、板庙子相似的地质特征和相同的成矿机制,其主要控矿因素为北东向断裂构造,外围找矿方向为北东向控矿构造的西延方向。在控矿构造北东延长方向上,沿断裂构造走向采取原生晕,在Au、Hg元素较高的样品地段,揭露到了矿体;在控矿构造南西延长方向上,通过路线地质踏勘也发现了金矿体。在其外围两侧均实现了找矿突破,扩大了矿床的找矿远景。  相似文献   

8.
天台地区主要矿床类型为低温浅成热液矿床和地热水环流浅成低温矿床。依据盆地形成的运动学和动力学机制,盆地构造样式、形态与方向,盆地内火山岩岩石学特征和沉积建造组合等研究盆地演化。以期结合盆地矿床成因特征与构造演化为区内指导可能成矿范围和深部找矿方向。  相似文献   

9.
金岭矿区成矿规律探讨   总被引:1,自引:0,他引:1  
通过分析金岭矿区区域构造及矿床地质特征.认为矿区矿床存在岩浆岩控矿带成矿特征。应用该成矿特征.对铁山矿床深部进行了成矿预测和找矿勘查工作,发现了新的矿体。  相似文献   

10.
棉田矿区位于吉林省东部,是以石英脉型和破碎蚀变带型为主的金矿床,区内矿产资源丰富,构造发育,为金矿富集提供了有利环境.通过总结该矿床的地质特征,分析矿床类型和成因,归纳出找矿标志,对矿区进行了成矿预测.在矿区开展了成矿预测研究,指出下一步找矿方向.  相似文献   

11.
转炉炉壳热应力分析   总被引:5,自引:1,他引:4  
任学平  郭志强  邹家祥 《炼钢》2001,17(6):47-49
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。  相似文献   

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13.
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。  相似文献   

14.
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.  相似文献   

15.
16.
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.  相似文献   

17.
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.  相似文献   

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20.
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)  相似文献   

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