皖南和皖北城市地质调查比较——以黄山市、淮北市为例

以黄山市和淮北市为例,对皖南和皖北城市自然地理、社会经济、地质背景、主要城市地质问题、城市地质调查内容进行比较,认为黄山市和淮北市是安徽省南部和北部城市的典型代表,其城市地质调查主要目的、方法手段相同,侧重点应当根据城市地质背景特征和发展需要有所不同,对今后皖南和皖北地区其他城市开展此项工作具有借鉴意义.     

Genomic cloning and expression of vitellogenin gene from the self-fertilizing fish Rivulus marmoratus (Cyprinodontiformes, Rivulidae)

We cloned the vitellogenin gene from the self-fertilizing fish Rivulus marmoratus, and sequenced 12,326 bp. The number of exons of R. marmoratus and rainbow trout vitellogenin genes were different, and also the splicing junctions are different throughout most of the exons and introns but the amino acid similarity of R. marmoratus vitellogenin gene to other species was rather high. In promoter region of R. marmoratus vitellogenin gene, there were several E2 binding sites and the estrogen response element (ERE). We discuss here the gene structure and expression of R. marmoratus vitellogenin gene.     

The migration and distribution of Cubans and Puerto Ricans living in the United States

A new approach to solving some of the problems that information, education, and communication (IEC) programs have been facing is proposed. The approach is based on the use of the "Appropriate Practical and Technical Information Section Cube" (APTISC). The APTISC model can systematically identify 64 different types of IEC programs. The approach logically arises from the following principles of effective IEC and should therefore be acceptable: problem-oriented, people-oriented, practical oriented, and professional-or technical-oriented. To start developing the IEC program systematically, one begins by asking the following simple questions: what is the problem; who are the people responsible for these problems; and what type of professional or technical knowledge is needed to solve the lack of knowledge, attitude, practice, or IEC capabilities (KAPI). The problem may be lack of knowledge (K), attitude (A), practice (P), of IEC capabilities (I) or any combination of them. A lack of KAPI can arise from various groups of people, and these groups must be identified. The type of professional or technical knowledge needed to solve the lack of KAPI can be divided into 4 types, i.e., technical information, technical application, technical practice, and technical supervision. For the purpose of actually developing the program the identified cube can be broken down into 4 main components: M1 = man (who is the comminicator); M2 = message (to be received by the audience); M3 = method (to transmit the message); and M4 = media (to convey the message). Each of these components has to be identified before the program can be initiated. Other supporting components can also be considered, e.g., management, material, morale, and money. These should be analyzed in relation to IEC programs being developed. It is worth considering the application of the APTISC Approach in developing IEC programs. This approach will help maximize the effectiveness of available resources by concentrating them on the areas of greastest need.     

荆山群的地层结构及野头组含金性研究

在荆山群建组剖面实地研究的基础上,补测了野头组的禄格庄剖面,考察了荆山区至平度区荆山群的相变规律,采用数学地质方法研究荆山群地层结构及生成环境,得知：荆山群无论在原岩建造、岩性组合、生成的古地理环境均不同于胶东岩群。荆山群形成于不稳定的冒地槽环境,相变剧烈,由荆山区至平度区厚度锐减,火山活动减弱。荆山群在总体上表现为三大周期,对应三个组,各组内部具有不同的沉积韵律和拟周期,野头组火山沉积和禄格庄组的砂泥质沉积是荆山群金的高丰度部位。野头组的火山建造形成于海底裂陷环境,金主要赋存在正常沉积与火山沉积的交变带中。产于进入火山活动和由火山活动转出的历史阶段,属火山喷气—溢流阶段的产物。     

胶东西北部北区和南区金成矿条件与成矿信息对比

本文概述了胶东西北部地区金成矿控制因素，从基底建造、成矿构造条件、重熔岩浆作用、燕山期热事件强度、围岩蚀变、综合成矿信息等6类31个方面，系统对比了胶东西北部北、南两区金成矿条件的异同，指出这两区间存在着一定差异，从而导致金矿化特征和成矿潜能的不同。在此基础上划分了三个具有不同成矿特征的构造-岩区。提出了热液系统中水-岩反应和热液系统中水的收缩作用是导致金属成矿的根本原因。     

新郑市浅层地下水流数值模拟及评价

通过分析新郑市水文地质条件,建立了概念模型,运用GMS软件建立三维地下水流的数值模拟模型,对研究区浅层地下水资源进行现状评价,并对2015年和2020年地下水位进行了预测.结果表明,研究区地下水水位持续下降,到2020年水位将会下降5～10 m,部分地区可能会出现开采漏斗,为了降低地下水位的下降幅度,应该调整产业结构,加强水资源的管理,提高水资源的利用率,从而减少地下水资源的开采.     

泗县地区水文地质特征及缺水原因分析

泗县地处安徽淮北平原的东北部,缺水问题一直影响着该县的经济发展。通过水文地质条件分析,查明该区地下水的主要含水层富水性及其特征,掌握了地下水分布规律,依据施工的供水井和水质分析结果,了解了地下水水位动态,分析了地下水的水化学类型。在此基础上,分析了缺水的主要原因,一是以黏土为主的地层岩性造成的水源性缺水,二是以原生元素超标为主造成的水质性缺水,为缓解缺水问题提出了相应对策和建议。