内蒙古达茂旗东毛忽洞金矿成矿特征及找矿方向

内蒙古达茂旗东毛忽洞金矿区内圈出工业矿体4条,产于燕山晚期的流纹斑岩、花岗斑岩内,受东西向东毛忽洞断裂控制。围岩蚀变为硅化、绢云母化、高岭土化、绿泥石化、碳酸盐化等;金属矿化为黄铁矿化、黄铜矿化、褐铁矿化、孔雀石化、赤铁矿化等。该蚀变岩型金矿床在东毛忽洞断裂与南北向的次级断裂复合叠加部位,金矿化明显增强,富集成矿。结合东毛忽洞金矿成矿特征,对于本区的金矿的找矿方向进行了探讨。     

洛川红黏土-黄土记录的风向变化及磁组构与磁化率对气候变化的敏感性对比

磁组构分析是研究季风风向的一种常用手段。对洛川黄土剖面黄土-红黏土界线附近地层进行磁组构研究表明:洛川剖面新近纪—第四纪过渡时期,风向整体呈南北向,且从红黏土沉积阶段到黄土沉积阶段,风向呈现顺时针方向的微小偏移,这可能与新近纪到第四纪的气候变化背景有关。另外,磁化率各向异性度P、磁线理L、磁面理F等参数曲线与磁化率曲线的对比显示:磁化率各向异性P、L、F参数的变化稍超前于磁化率曲线的变化,这与蓝田段家坡剖面的磁组构研究结果类似。导致以上结果的原因尚未确定,但可能与磁组构信息被记录于沉积物的速度快于沉积物磁化率值的改变有关。     

OREINTATION AND PRIORITY AREAS OF DRY LAND AGRO-TECHNOLOGY DEVELOPMENT IN CHINA

Globalfreshwaterresourcesaregettingincreasinglyscarce ,enlargingtheareaofdrylandandmakingthesituationworse .Thus,theresearchanddevelopmentondrylandagro technologyiscatchingpeople’sincreasingattention .DrylandareasinChinaaremainlydis tributedinnorthern 1 6 provinces (municipalities ,autonomousregions) ,whosedrylandagri cultureplaysanimportantrolein 2 1stcenturyChina’sagriculture .Majorissuesfacedbydrylandagro techdevelopment　Inearly 1 980s ,addressingtheseverescarcityofwaterinthenorthernCh…     

烟台市中心镇选择的战略研究

中心镇是指大都市圈内或全省城镇发展轴上具有明显发展潜力和有一定规模基础的乡镇.有所取舍地建设一批中心镇对社会经济发展具有积极地推动作用.在空间结构理论指导下,合理选择中心镇是这项工作的前提和关键.从自然、社会、经济等方面分析了发展中心镇的影响因素,构建了发展中心镇的评价指标体系,以定性和定量相结合的方法确定了烟台市的20个中心镇,指出了它们今后的发展方向,提出了发展中心镇的具体建议.     

南岭东段钨锡多金属矿床地质特征、成矿模式及找矿方向

南岭东段地区是世界著名的钨多金属矿集区。近年来中国地质调查局在该区实施钨多金属矿调查评价,找到了一批具有中大型远景的与花岗岩有关的新类型钨锡多金属矿床,特别是在复式岩体中的花岗岩型新类型钨钼多金属矿床(简称"体中体"式钨钼多金属矿床)和受中、上泥盆统地层控制的层控矽卡岩型钨锡多金属矿床的发现,不仅实现了南岭东段地区找矿新突破,而且对整个南岭乃至我国华南地区钨锡多金属矿找矿具有重要指导作用。本文根据近年来南岭东段地区钨锡多金属矿找矿新成果,通过该区钨锡多金属矿床地质特征的总结,建立了南岭东段地区钨锡多金属矿成矿模式,提出了南岭东段地区今后钨锡多金属矿找矿方向应重点注意与燕山期复式花岗岩有关的"体中体"式钨钼多金属矿床和中、上泥盆统控制的层控矽卡岩型钨锡多金属矿床的寻找。     

Working with states to build competence in disaster response

This paper examines the relationship between national disaster response authorities and the international humanitarian community through case studies in three countries where it is generally agreed that good working relations exist. It seeks to understand the common phenomena which led to those good relations. The paper takes as its premise that the international humanitarian aid community, bruised by its experience in non-functioning and predatory states, has developed an unhelpful aversion to cooperation with, and working through, local government. It posits that in a future with climate change, disasters will be more frequent and this requires a necessary shift, on the part of international agencies and local government from seeing disaster response as exceptional and interventionist to viewing it as a standard part of sovereign duty and normalcy. The study highlights a number of common features across the three case studies which shed light on why disaster response has been transformed in the study countries.     

Small island developing states: natural disaster vulnerability and global change

Abstract

This paper sets out an examination of natural disaster amongst small island developing states (SIDS), and presents a framework for assessing the interaction of global pressures and local dynamics in the production of human vulnerability. Change at the global level is found to be a source of new opportunities as well as constraints on building local resilience to natural disaster. Much depends on the orientation of the state in global economic and political systems. The United Nations is a key global actor with relevance to shaping vulnerabilityin island states, and the impact of the UN Decade for Natural Disaster Reduction is reviewed. It is concluded that this is a critical time for SIDS which must contend with ongoing developmental pressures in addition to growing pressures from risks associated with global environmental change and economic liberalisation that threaten their physical and economic security.     

从烟草产业发展经验看花卉业的发展途径——加快云南花卉产业科技创新的对策

通过对云南省“两烟”产业发展经验的总结,提出了依靠科技创新,走资源优势与科技创新相结合的路子,加快发展花卉产业的思路。同时,分析了云南花卉科技创新基础条件和存在的主要问题,提出了相应的对策建议。     

青海省旅游客源市场分析研究

青海省旅游资源独特,资源的垄断性高,但旅游业起步晚且发展水平较低,在国际和国内旅游客源市场上占有的份额小。作者运用1990年～1997年旅游统计资料,研究了青海省国内、国际旅游客源市场的数量和地域构成现状,并针对其客源市场发展目标,提出了相应的开发措施。     

选矿废水中醚胺的某些环境化学特性研究

通过降解,吸附及土柱淋滤试验等手段,对选矿废水中醚胺的降解规律,降解能力,吸附能力,分配特征以及在土壤中的垂直迁移规律等环境化学特性进行了试验研究。结果表明：（１）醚胺在水体中的降解规律服从一级生物化学反应方程ｃ－ｃｏｅｓｐ（－Ｋｔ）,温度和ｐＨ值是影响降解系数Ｋ的两个主要因素;（２）土壤对醚胺的吸率在９２％以上,吸附方程为ｑ＝５．３３５＋６３．３ｇｃ;（３）醚胺在土壤中的垂直迁移规律为ｃ＝ａｅｘ