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湖南平江童源-和尚坡金矿区成矿流体地球化学特征 被引量:6
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作者 邓会娟 夏浩东 +1 位作者 息朝庄 崔银亮 《矿物学报》 CAS CSCD 北大核心 2013年第4期691-697,共7页
位于江南古陆中段金成矿带内的湖南平江万古金,是近年来成矿理论指导找矿取得突破的代表性矿床,也是湘东北赋存于冷家溪群内的典型矿区。通过对童源-和尚坡矿段微量和稀土元素、流体包裹体和铅同位素地球化学分析,研究其成矿流体性... 位于江南古陆中段金成矿带内的湖南平江万古金,是近年来成矿理论指导找矿取得突破的代表性矿床,也是湘东北赋存于冷家溪群内的典型矿区。通过对童源-和尚坡矿段微量和稀土元素、流体包裹体和铅同位素地球化学分析,研究其成矿流体性质和演化,并探讨矿床成矿流体和成矿物质来源。结果表明:轻稀土富集,铕亏损,为向右平缓倾斜标准化曲线;微量元素为Rb、Pb、Nd强烈富集,亏损Ba、Ce、Sr、zr;流体包裹体主要为气液两相包裹体,包裹体成分以H20、C02为主,成矿流体均一温度、盐度分别为160~240℃,4.50%~14.50%,为中低温.中低盐度的流体;206-Pb/204-Pb为17.934~18.358、207-pb/204-pb为15.654~15.787和08-pb/204-pb为38.247~38.886,具有上地壳源铅特征。 展开更多
关键词 成矿流体 地球化学 童源-和尚坡 平江
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安泰的启示
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作者 陈志龙 《实事求是》 CSSCI 北大核心 1991年第2期73-73,共1页
安泰是古希腊神话中海神波寒东和大地女神盖娅的儿子,他力大无比,是公认的无敌英雄。其力量主要来自大地母亲——盖娅女神。每遇强敌,他只要一接触大地,就会产生无穷的力量而击败对手。他的敌手赫拉克斯一次在同他角斗时,看出了这一点,... 安泰是古希腊神话中海神波寒东和大地女神盖娅的儿子,他力大无比,是公认的无敌英雄。其力量主要来自大地母亲——盖娅女神。每遇强敌,他只要一接触大地,就会产生无穷的力量而击败对手。他的敌手赫拉克斯一次在同他角斗时,看出了这一点,便趁安泰双脚离地的一刹那把他举起,最后在空中将其扼死!这个故事成了古希腊神话中的一个悲剧。 展开更多
关键词 古希腊神话 盖娅 拉克斯 力大无比 双目失明 终生难忘 童源 无产阶级执政党 陈毅元帅 猎神
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Issues of Access, Equity, and Quality in Early Childhood Development Programmes in Zimbabwe
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作者 Rose M. Mugweni 《Sociology Study》 2017年第6期315-324,共10页
The paper sought to explore issues of access, equity, and quality in the early childhood development (ECD) sub-sector in Zimbabwe. The massive expansion of ECD services prompted the author to undertake the study. Da... The paper sought to explore issues of access, equity, and quality in the early childhood development (ECD) sub-sector in Zimbabwe. The massive expansion of ECD services prompted the author to undertake the study. Data were collected using focus group discussions, individual interviews, document analysis, and observations. Information from literature, research reports, policies, and practices was also analyzed in order to establish the state of affairs in the provision of ECD. The data were analyzed using theme identification methods to solicit emerging issues. Generally, it was found that on issues of access, equity, and quality in ECD in Zimbabwe, there is a quality-quantity dilemma with qualitative progress less conspicuous than quantitative progress. The resultant specific challenges include: large teacher-child ratio; lack of parental involvement, lack of trained ECD specialists with expertise in using a play-based curriculum; and shortage of equipment, material resources, and age appropriate infrastructure. In most ECD settings, there were inadequate health and nutrition provisions. Water, sanitation and health (WASH) facilities were found to be insufficient in most centres. The study recommended that there is need for: equal access to quality early childhood education; provision of infrastructure, provision of ability and age appropriate resources; and health, sanitation, and nutrition services especially in rural settings. Overall, ECD programmes in Zimbabwe should strive to attain quality more than quantity services. The need to train more early childhood specialists who would drive the ECD sub-sector is emphasized. 展开更多
关键词 ACCESS EQUITY QUALITY quantity early childhood development
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The Lifeline for Suicide Prevention of Children and Teenagers in Bucharest, Romania
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作者 Emanuel Adrian Sarbu 《Sociology Study》 2015年第5期415-427,共13页
Suicide is one of the leading causes of teenagers' deaths. Even whether it is preventable, most of the time, there are still very few projects or actions of the local authorities and/or organisations in Romania, due ... Suicide is one of the leading causes of teenagers' deaths. Even whether it is preventable, most of the time, there are still very few projects or actions of the local authorities and/or organisations in Romania, due to the lack of information and resources. The suicide prevention line for children and teenagers in Bucharest is presented and evaluated after five years of activity. It may be considered as one example of good practice, since it managed to put together local knowledge, human resources, and social actors. The suicide prevention line for children and teenagers in Bucharest has been established in 2009 by the General Directorate of Social Welfare of Bucharest Municipality, in partnership with the Psychiatric Hospital "Prof. dr. Alexandru Obregia". The finances are provided by the Welfare Department, the location belongs to the Psychiatric Hospital, and the mental health services are coordinated by a neuro-psychiatrist. There are about 30 volunteers taking the phone calls 24/7. Since 2011, they established the Association of Suicidology. 展开更多
关键词 SUICIDE prevention LIFELINE CHILDREN TEENAGERS
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Effects of the New Two-child Policy On Family Old-age Security
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作者 Li Cuiping Jiang Fei Yu Chunyan 《International English Education Research》 2015年第9期60-62,共3页
This paper analyzes the current situation of the aging population and low fertility rate.lt is found that the aging process is accelerated, the population growth potential is decreased, and the elderly dependency rati... This paper analyzes the current situation of the aging population and low fertility rate.lt is found that the aging process is accelerated, the population growth potential is decreased, and the elderly dependency ratio is higher.Secondly, this paper mainly analyzes the impact of the new two-child policy on family pension security from three aspects: population policy, family support and social security.There are two aspects of the effects, the positive effects are:improve fertility, reduce elderly dependency ratio, relieve population aging,enhance the family development: the negative effects are: tremendous pressure on public resources, further inequality in birth right, heavy economic pressure on the family.At last. this paper puts forward the constructive countermeasures against the problems of the policy and the was out of the family old-age security. 展开更多
关键词 The New Two-Child Policy Family Old-age Security Fffect Analysis
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小故事
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《美术》 1956年第12期45-,共1页
王维和韓干西洋美朮史上传說道:文艺复兴时期大画家乔托本来是一个牧羊童。
关键词 乔托 憔夫 天矛 画中 一担柴 客行 童源 王稚 画竹 董源
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