时间分辨-窗口技术应用研究(Ⅲ)——时间分辨荧光光谱法同时测定铽和镝

研究了Tb~(3+)、Dy~(3+)-乙酰丙酮(AA)-三正辛基氧化膦(TOPO)-Triton X-100体系的荧光特性,利用时间分辨-窗口技术实现了Tb和Dy的同时测定,用于合成样品和氧化钇试剂中痕量Tb、Dy的测定,结果良好。     

西方女性地理学的发展与启示

西方女性地理学源自对地理学研究中忽视女性独特经验的性别主义取向以及对学科中缺少女性参与的双重不满而兴起的，大致经历了初始阶段、蓬勃发展阶段和更加多元化3个发展阶段共30余年的发展历史，并逐步走向了成熟。它着眼于女性不同于男性的独特经验及女性内部间的差异性，提供了以女性主义的视角来分析研究问题的新的发展领域。改革开放以来，由于单位制的解体，中国女性的整体地位不升反降，女性问题日益成为学者们研究的热点。女性地理学无论是对中国地理学的发展还是对女性问题的研究都有重大的启示作用，理应加以重视并作更深入的研究。     

Revised apparent polar wander path of the Yangtze Block and its tectonic implications

Paleornagnetic data, during the Phanerozoic obtained in the last 20 years in the Yangtze Block (YZB), are critically reviewed. A new apparent polar wander path (APWP) for the YZB is constructed by selected poles with objective reliable criteria, with a goal of placing constraints on the models of the formation and subsequent deformation and reconstructing the tectonic evolution history of this region.     

INTERRELATION BETWEEN EAST-ASIAN WINTER MONSOON AND INDIAN/PACIFIC SST WITH THE INTERDECADAL VARIATION

Investigated statistically is the interrelation between East Asian winter monsoon(EAWM)and SST over sensitive areas of the Indian and Pacific Oceans.with focus on the relation of EAWMto strong ENSO signal area.i.e.,the equatorial eastern Pacific(EEP)SST.Evidence suggeststhat the EAWM variation is intimately associated not only with the EEP SST but with theequatorial western Pacific“warm pool”and equatorial Indian/northwestern Pacific Kuroshio SSTas well:the EAWM and ENSO interact strongly with each other on the interannual time scales,exhibiting pronounced interdecadal variation mainly under the joint effect of the monsoon QBO andthe monsoon/SST background field features on an interdecadal basis—when both fields are in thesame phase(anti-phase).strong EAWM contributes to EEP SST rise(drop)in the followingwinter,corresponding to a warm(cold)ENSO cycle;the EAWM QBO causes ENSO cycle to bestrong phase-locked with seasonal variation,making the EEP SST rise lasting from April—May toMay—June of the next year,which plays an important role in maintaining a warm ENSO phase.     

冀东地区金矿地质遥感信息提取方法研究

冀东地区金矿主要包括金厂峪,长城式和峪耳崖型。后期叠加断裂主往直接控制矿体产出,黄铁矿化是矿化主要标志。根据光谱特征可把金矿区围岩,蚀变岩和矿脉分开。位于断裂附近的羟基和３价铁信息复合异常地带是金矿化远景区。热红外光谱资料对岩性和构造识别有明显效果,可以进行变质岩与白云岩的区分和区内主要出露岩类的区分。区域性断裂－线性构造,韧性剪切带和挤压破碎等控矿构造遥感影响循环明显。     

王峪口水库库岸滑坡特征及形成机制

王峪口水库库岸滑坡地层主要为一套上新统砾石层、夹砂层、粘土层．区内滑坡具有明显的分期性与群发性特点．滑坡形成的主要原因是该套地层夹有饱水软化的粘土层和易于液化的饱水砂层;地震则可能是其触发因素．     

城市河流污染治理的国际经验

城市河流有复杂的生态系统,齐全的污染类型,污染危害极为严重。然而,随着经济发展和技术进步,城市河流的污染治理已不再是解不开的难题,发达国家的城市河流大部门已进入良性生态循环阶段,碧水游鱼使人留连忘返。本文以泰晤士河为例,总结了依法治污、区域性防治技术、污水处理系统、芦苇床治污、引水冲污、疏汲底泥等城市河流污染治理的国际经验,并对苏州河的整治提出了若干有益建议。     

俄罗斯地缘安全战略探析

冷战结束后,俄罗斯重新构建其地缘安全战略,确立了维护国家和民族利益,重振大国地位的战略目标。以俄罗斯为中心,周围形成前苏联地区、东欧地区、亚太地区等多个利益区。这些利益区构成了以前苏联地区为内圈,东欧、亚太地区为外圈的圈层结构。     

Physical properties of the triassic host strata and their relations with gold mineralization in Youjiang Rift, South China

Micro-fine disseminated gold deposits are hosted in the Triassic Baipeng Formation (argillaceous siltstone and arenaceous mudstone)in the Youjiang Rift,South China.Physical properties(grain size,specific surface,porosity and permeability)of the host rocks are studied with respect to ore-fluid cirulation,water-rock reaction and the effective volume from which ore-components could be extracted.On this basis,it is considered that the ore-fluid and oremetals were extracted mainly from the strata and hydrothermal solutions,tending to move to wards low-energy sites,depositing their gold in fault zones at the margins of the basin and in the circle fracture systems around underwater uplifts.The gold deposits resulted from the deepcirculation of hydrothermal solutions,Probably aided by multi-stage superimposition The quantites of ore-fluid necessary to form the deposits were estimated.     

西安地区区域地壳稳定性评价

本文依据“七五”期间对西安地区进行区域地壳稳定性与地质灾害评价和研究工作所取得的地质、物探、测量、模拟实验等方面的成果资料,考虑到内、外动力地质作用及介质条件,运用模糊数学方法进行了稳定性评价与区划,将西安地区地壳稳定性划分为较稳定、次较稳定、次较不稳定、较不稳定、不稳定五级。在此基础上,对西安地区主要城市的建设与发展规划提出了指导性的建议。