我国东北甲区钼矿化有关热液蝕变黑云母的物理-化学性貭及其成因

黑云母是我国东北甲区合有銅矿化的奥长花崗斑岩中分布广的矿物之一。原生的黑云母經受到含矿热液作用后变化多,蝕变強,与銅矿化的关系也較紧密,因之对各种蝕变黑云母的物理性貭,化学組分,成因以及其相互关系的研究,不只是有助于闡述成矿作用和矿床成因,并且有利于对銅矿的探寻。以前在进行普查勘探工作时,曾提到过合銅矿化奥长花崗斑岩中富含有黑云母与钼矿化有关。但沒有进一步对黑云母进行研究。     

利比亚—马耳他大陆架案

马耳他是座落在地中海中部的岛国,与北非的突尼斯和利比亚遥遥相对。1980年,马耳他庄有关海域的石油勘探问题上同利比亚发生了争执。马耳他要求对其海岸以南98海里的水域行使管辖权,其中包括其东南68海里的梅地那滩的石油资源。利比亚则要求获得距马耳他南部65.5海里为界限的全部海域的三分之二。尽管两国就争端解决签订了特别协定,但1981年,利比亚又提出新的条件,即在国际法院作出判决之前,双方不得在争议地区从事钻井活动。马耳他认为该条件不能接受。 1982年7月19日,利、马两国将其特别协定正式提交国际法院,请求法院裁决下列问     

Women's status and childhood mortality in two contrasting areas in south-western Nigeria

The purpose of this paper is to examine the relationship between some women's status factors and differentials in probability of child survival in the south-western part of Nigeria. The present analysis is based on the results of the study of children of some 4677 women in two towns contrasting geographical zones.The results of the studiy indicate the significant role of age of mother at first marriage and BCG vaccination while the influence of maternal education was inconsistent at both household and regional levels. Likewise, the possession of certain household items such as dustbin, dining table seem to enhance the survival of children in the urban centres.The results of the study therefore call for strong measures to discourage the marriage of teenage girls. Also, the campaign for use of family planning devices for at least child spacing should be intensified among both mothers and men. Mothers should also be discouraged from patronizing food vendors to ensure minimum balanced diet for their children. Finally, there is need to encourage integrated research efforts on mortality studies so that the fine points of each discipline can be utilized in the multiple research methodology required in order to make headway in the campaigns for child survival and safe motherhood in developing societies.This work was carried out with the aid of a grant from the IDRC, Ottawa, Canada     

钻石环下，我们踏上征途

2009牟7月20日傍晚,湖北汉川的体育场上出现了一群“行踪诡异”的年轻人。他们穿着同样的T恤衫,在空地上支起各种市民们从未见过的天文望远镜,张贴出一张张关于两天后日全食的大幅海报。市民们纷纷围过去凑热闹,而青年们很热情地教他们使用这些器材,并认真讲解望远镜里所看到的东西,还向他们仔细介绍了关于日全食的知识以及观测方法。     

豫西嵩县盆地周边地区地震空区地质环境初探

通过时豫西嵩县中～新生代断陷盆地构造类型、断裂发育及其活动程度的初步分析，认为该盆地及其邻区具有断裂发育规模小、新构造活动程度低、盆内无次级断裂及其所围限的地堑和地垒断块构造发育等特征，从而形成了被深断裂割开的地震空区     

Evaporation of Accretion Disks around Black Holes: The Disk-Corona Transition and the Connection to the Advection-dominated Accretion Flow

We apply the disk-corona evaporation model (Meyer & Meyer-Hofmeister) originally derived for dwarf novae to black hole systems. This model describes the transition of a thin cool outer disk to a hot coronal flow. The mass accretion rate determines the location of this transition. For a number of well-studied black hole binaries, we take the mass flow rates derived from a fit of the advection-dominated accretion flow (ADAF) model to the observed spectra (for a review, see Narayan, Mahadevan, & Quataert) and determine where the transition of accretion via a cool disk to a coronal flow/ADAF would be located for these rates. We compare this with the observed location of the inner disk edge, as estimated from the maximum velocity of the Halpha emission line. We find that the transition caused by evaporation agrees with this determination in stellar disks. We also show that the ADAF and the "thin outer disk + corona" are compatible in terms of the physics in the transition region.     

贺兰山区气候若干问题

本文主要利用宁夏区农业厅和区气象局气候资料中心于1985年3月,组织的贺兰山中部剖面考察期间11个气象站点的观测资料,在国内首次对贺兰山的气候特征进行了较为系统的研究。本文主要阐述了贺兰山东麓的冷湖效应,东坡磷矿点典型的山谷风现象,雨季的最大降水高度,以及研究确定了剖面上西坡日照百分率随高度的真实分布。     

四川长宁双河的志留系

<正> 四川长宁双河附近的志留系,地层名称以往均沿用邻区已有的名称。由于岩相的变化,与奥陶系一样,志留系也有其特殊性。志留系下统和中统发育较好,下统笔石柏页岩发育,下统上部至中统的介壳相地层中,灰岩甚少,与华中区其它地方的志留系显然不同,本文建立两个新的地层单位。     

对AVO分析技术的评价——对马来西亚东海岸含气储层的探测

主要用于叠前地震道集的ＡＶＯ分析技术越来越引起人们的广泛兴趣，因为与简单研究叠加地震剖面异常相比，它能提供更多有关油气聚集的信息。本文对用ＡＶＯ分析技术预测马来西亚东海岸含气砂岩储层进行了评价。本区地层主要是第三纪三角洲上的砂泥岩层，共有两个不利的构造：一个被证实有大量砂岩储层，其内含油；另一个还未钻探，对在三个气层顶部进行的ＡＶＯ分析模拟表明：有气层存在时，ＡＶＯ异常明显增强。