Characteristics and uranium mineralization of ore-bearing rock series in Qianjiadian sandstone-type uranium deposits,Songliao Basin

The Qianjiadian sandstone-type uranium deposit in Songliao Basin has become an ultra-large uranium deposit since its exploration and continuous development. The geological and metallogenic characteristics of this area have been studied widely since its discovery,but the detailed petrological features of its ore-bearing construction and favorable metallogenic conditions still require much detailed research. The mineralization of urnium deposit includes various geological processes resulting in the accumulation of uranium element. The source rock with high uranium concentration and much easier for the leaching of uranium is the basis of uranium mineralization. The later oxidation-reduction,mineral alteration are the key for the uranium deposits. In this paper,the petrological characteristic of lithology sandstone-type uranium deposit is studied by using the micro experimental analysis. It is found that the host rocks are primarily composed of medium-fine grained feldspar lithic sandstone,fine grained feldspar lithic sandstone,boulder-clay-bearing sandstone and glutenin. The amount of quartz and feldspar are close to the rock debris. The debris are mainly composed of rhyolite,rhyolitic tuff,and some trochyte,ayenite-aplite,granite,granite porphyry,andesite,silicalite and mudstone etc. the epigenetic alteration includes the carbonatization and kaolinization is general and intense at the local region,followed by the secondary epigenetic alteration includes pyritization,ferrugination and little baratization. Deep oil and gas infiltrate into the oil-bearing strata causing the oil stains,spots and spillage. The symbiosis of pyrite berry globule and micritic pyrite are common. The uranium element exists in the uranium-bearing minerals(e.g.,asphalt and coffinite)as well as the adsorbed state. The multi-genesis and multi-stages of the metallogenic model is established,i.e.,sedimentary preconcentration stage-interlayer infiltration stage-the oil and gas transformation stage-the oil and gas reduction stage.     

High resolution UAV image acquisition method and modeling practice for geological outcrop with a large slope

The observation on the outcrop in the field is one of the most direct and efficient methods to obtain the underground formation information, which provides the most direct first-hand geological data for geological science research. However, the traditional outcrop investigation, especially for the outcrop with a large slope and unreachable area, mainly relies on the inspection, measurement of the slope bottom, and photos to record outcrop information, making it difficult to accurately characterize the whole geological body. Consumer unmanned aerial vehicle (UAVs) with the advantages of good mobility, strong adaptability and low cost, can obtain outcrop images from a short distance, multiple perspectives and varying heights. In this paper, the image acquisition method and model construction accuracy without control points available for the geological outcrop with a large slope are discussed. Consumer UAVs is used to capture images through vertical route and then the geological model is set up. The results show that oblique photogrammetry technology combined with consumer UAVs can effectively build a large slope geological outcrop model with millimeter resolution. The model has the characteristics of high resolution, uniform resolution and high measurement accuracy up to millimeter, which can effectively reduce the difficulty of field investigation and the personnel safety risk, thus it accurately reproduces the outcrop situation with large slope in the field, providing a real and reliable data basis for the section interpretation, analysis and measurement of large slope outcrop.     

环流非对称结构与台风移速关系的数值研究

利用准地转正压模式,在无环境气流的情况下,对初始轴对称和非轴对称理想台风实施两组共13个数值试验,研究台风环流不同区域的非对称性与其移速的关系。结果表明：（1）台风环流某些区域的非对称性与其移速有稳定的强相关,如,大风半径外围50～100KM附近东—西向东北—西南向的非对称性;（2）大风半径的位角,使台风外围环流的非对称性与其移速相关增强,而最大风速和初始非对称方位用的变化对上述相关性几乎没有影响。     

震前自然电场的前兆及其可能机理

研究了震前自然电场的前兆及礤可能机理。主要结论：（１）５．４￣６．２级地震在１５０￣２００ｋｍ,７．０￣７．９级地震在２５０ｋｍ范围内自然电场出现前兆;（２）过滤电场、电化学电场、土体受压变密和机电转换可能是自然电场的前兆机理。     

VOLUMETRIC SEDIMENT CONCENTRATION IN DEBRIS FLOWS

1　ＩＮＴＲＯＤＵＣＴＩＯＮ　Ｄｅｂｒｉｓｆｌｏｗｓｏｃｃｕｒｗｈｅｎｒａｉｎｓｔｏｒｍｓｏｒｔｈｅｅｌｅｖａｔｉｏｎｏｆｕｎｄｅｒｇｒｏｕｎｄｗａｔｅｒｌｅｖｅｌｃａｕｓｅｌｏｏｓｅｄｅｐｏｓｉｔｓｏｒｐｅｔｒｉｆｉｅｄｏｂｊｅｃｔｓｓｕｃｈａｓｐ?..     

Triassic alkaline intrusives in the Yanliao-Yinshan area: their chronology, Sr, Nd and Pb isotopic characteristics and their implication

Dated isotopic ages for 15 alkaline intrusives in the Yanliao-Yinshan area, ranging from 268 to 190 Ma, ten of which are from 250 to 208 Ma, indicate that most of them were formed in the Triassic Epoch. All the E_Nd(t) ratios from - 17.19 to -3.21 averaging -7.09, the E_Sr(t) ratios fmm 11.7 to71.5 averaging 36.63, and the I_sr(t) ratios from 0.705 0 to 0.709 3 averaging 0.706 8, show their characteristics of enrichment. On the E_Nd (t) virus E_Sr(t) correlation diagram, the samples from these intmsives were plotted within the enriched mantle trend lines and just outside, demonstrating their close connection to materials from the enriched mantle reservoir, taking into account the same Pb isotopic composition as that of the mantle.     

地震体波成像中的几个问题

本文在论述地震体波成像中速度模型间断面的引入,体波多震相的利用等优越性的同时,利用研究区之处,能改善或分辨地球内部更深处的远震资料,得到研究区平均相对走时残差的分布。结果表明：１．采用相对走时残差消除了模型区域外的地球模型的影响,从而使 远震理论走时计算中,球状分层各向同性参考地球模型的选取是不重要的;２．平均相对走时残差的分布与研究区内构造分区相关;３．研究区中地球形状的椭率对反演结果影响很小。     

新疆巴什托—亚松迪地区石炭—二叠系碳酸盐岩储层特征

新疆巴什托—亚松迪地区是塔西南油气勘探程度较高的地区,石炭—二叠系碳酸盐岩是其主要油气储集层。碳酸盐岩具有多类型及其空间分布非均质性特点。为了总体认识该地区石炭—二叠系碳酸盐岩储层特征,通过分析该地区石炭—二叠系碳酸盐岩不同类型的岩石特征,储层形成的影响因素、储集空间类型及其储层的储集性能与分布等特征,认为该地区以石炭系上统小海子组碳酸盐岩储层发育颗粒灰岩,颗粒白云岩,其储集性能最好,是研究区的主要油气产层     

鲈鱼苗烂鳃、烂尾病病原菌的研究

１９９７年４～５月,对花鲈（Ｌａｔｅｏｌａｂｒａｘｊａｐｏｎｉｃｕｓ）鱼苗期细菌性烂鳃和烂尾病的病原菌进行了研究。从具有明显症状的病鱼的病灶组织分离到２株致病菌Ｃ－１和Ｗ－１,经人工感染及从人工感染发病鱼体再分离的Ｗ－４和Ｗ－５菌株的再感染试验结果表明,所分离的细菌为鲈鱼苗烂尾,烂鳃病的致病菌。经６４项生物学特性,生理生化特征测试结果表明,这４株菌可归为一类,同属于鳗弧菌（Ｖｉｂｒｉｏａｎｇｕｉｌａｒｕｍ）。药敏试验结果表明,痢特灵、ＣＩＮ１００、ＭＥＬ２５、呋喃妥因、氯霉素、磺胺药＋ＴＭＰ和美洛西林等７种药物对病原菌有显著的抑制作用。     

益气养阴汤辅助PP方案治疗中晚期肺腺癌气阴两虚证30 例

目的：观察益气养阴汤辅助培美曲塞联合顺铂（PP）方案对中晚期肺腺癌气阴两虚证患者的临床疗效。方法：将60 例中晚期肺腺癌气阴两虚证患者随机分为治疗组和对照组,每组各30 例。对照组予以PP方案治疗,治疗组在对照组基础上加用益气养阴汤治疗,2组均治疗4个疗程。比较2组治疗前后的肿瘤标志物［癌胚抗原（CEA）、糖类抗原125（CA125）］、中医证候评分、Karnofsky功能状态评分（KPS）、癌因性疲乏量表（CFS）各维度得分情况及治疗后2组实体瘤近期疗效、药物毒副作用的发生情况。结果:疾病控制率治疗组为93.33%（28/30）,对照组为73.33%（22/30）,2组比较,差异有统计学意义（P<0.05）;2组CEA和CA125水平、中医证候评分和CFS评分均较治疗前下降,且治疗组低于对照组（均P<0.05）;2组KPS评分均较治疗前提高,且治疗组高于对照组（P<0.05）;治疗4个疗程后,治疗组在治疗过程中毒副作用的发生率较对照组低,但差异无统计学意义（P>0.05）。结论：益气养阴汤辅助PP化疗方案可以降低中晚期肺腺癌气阴两虚证患者CEA和CA125水平,在一定程度上缓解患者的临床不适症状,改善癌因性疲乏,提高生活质量,增效且不会增加药物的毒副作用。