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本刊讯 3月30日，在国务院加强地质工作的春风沐浴下。我国一支最早从事核地质事业的队伍——核工业二六四大队迎来了建队50周年纪念日。 相似文献
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党中央、国务院作出调整电力结构,加快核电发展的决定,并对铀矿资源保障形势十分关注。据此,中核集团公司提出“铀资源大基地”战略设想。为实施这一战略,需要构建铀矿地质工作新格局,加强管理和队伍建设,深化改革,使我国铀矿地质事业不断迈向新高潮。 相似文献
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今天,我和世忠副秘书长受吴新雄省长委托。一起到省核工业地质局来看一看。分管这么长时间．到核工业地质局办公楼还是第一次。但以前去过二六三大队、昌大瑞丰、鹰潭二六一大队和相山铀矿,所以陆续有些接触。总的来说,省核工业地质局为国家铀矿事业发展作出过巨大贡献,多年来也非常守纪律、顾大局,讲奉献。尽管国家体制这样变、那样变,但核工业地质局的工作．特别是找矿事业从未间断过,队伍也一直没有乱。更重要的是,即使在最困难时,核地质事业依然有发展,非常不错。 相似文献
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《铀矿地质》2005,21(3):127-128
1955年4月2日,领导全国铀矿地质勘查工作的管理机构--地质部第三局(核工业地质局的前身)在北京成立.核地质是核工业的开路先锋.50年来,在几代中央领导集体的亲切关怀下,在原二机部、原核工业部、原中国核工业总公司和现中核集团公司的正确领导下,经过一代又一代核地质广大干部和职工的共同努力,我国核地质事业从无到有,从小到大,从弱到强,取得了举世瞩目的成就.找到铀矿床数百个、铀矿田数十处,圈定铀成矿带近20条,为我国国防建设和国民经济发展做出了卓越贡献.在隆重庆祝核工业地质局建局50周年之际,我谨代表核工业地质局,向长期以来关心、帮助和支持核地质事业发展的各级领导和各界同仁表示崇高的敬意,向长期以来奋战在核地质战线上的广大干部和职工,表示亲切的慰问. 相似文献
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作为战略性资源，铀矿的保障供给对国防建设和国民经济发展有着非常重要的意义。由核工业地质局组织编写的《华东铀矿地质志》指出：“华东地区具有良好的区域地质背景和成矿条件，是我国铀和多金属成矿的有利地区，有着极大的找矿潜力。”就如何加强铀矿资源勘查工作，记者近日采访了江西省核工业地质局副局长戴民主。 相似文献
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为全面系统地整理华东地区铀矿地质勘查成果，总结地质找矿经验，深化对铀成矿规律的认识，进一步分析铀成矿远景，提出下步地质找矿的战略选区。为今后开展铀矿地质工作提供重要依据．2002年5月。中国核工业地质局决定由江西省核工业地质局和核工业270研究所共同组织编写《华东铀矿地质志》。 相似文献
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铀矿是核工业发展的重要物资基础，是军民两用战略性资源，铀矿的保障供给，对于我国国防建设和国民经济发展有着非常重要的意义。在核工业面临发展的新形势、新阶段，作为我国铀资源大省的江西铀矿地质工作专业局。如何充分发挥人才、技术和资源优势，不断加快江西核地质经济发展，为国家找到更多更好的铀矿资源，是我们必须努力做好的工作和义不容辞的责任。 相似文献
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本文从人生信念、道德境界以及我国传统美德等方面阐述了敬业精神对当今激烈的市场竞争中的重要作用,并推出大力倡导敬业精神,纠正行业不正之风的基本途径和方法。 相似文献
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准确确定Kaiser点是研究声发射测量地应力的关键.通过对模拟岩心的水泥块进行单轴受压破坏过程的声发射试验,得到了试件在试验过程中的应力-应变曲线、应力、声发射强度、声发射累积数与时间的关系图.分别对试样用突变点法、最大曲率法、双切线法、重加载法（抹录不尽现象、两次加载相减法）、多方面综合判定法以及声发射强度信号的统计分析法进行了分析.从不同的方面认识了试样的Kaiser点的特性,总结并分析了确定Kaiser点的方法以及各自的适应性,并进行了优选.研究表明,试验确定了试样的物理特性,各种方法都能从不同角度和机理上解释Kaiser点现象,综合判定法能相对更加全面、准确地确定Kaiser点. 相似文献
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An extension to the DRASTIC model is proposed in order to assess aquifer vulnerability to pollution. In contrast to the DRASTIC
model, which considers the unsaturated and saturated zones together and computes a global intrinsic vulnerability index, the
suggested approach discriminates between the aquifer vertical vulnerability (a concept related to the pollutant percolation)
and the groundwater susceptibility (a concept that depends on the behaviour and uses of the groundwater). This approach is
applied to the Haouz aquifer (Morocco) that supplies water to the Marrakech area. This aquifer is widely overexploited and
there is evidence that the groundwater quality is threatened by various sources of pollution. Evaluation of the vertical vulnerability
indicates that the aquifer mainly presents a moderate-to-weak vertical vulnerability. The zones potentially most favourable
to pollutant percolation are mainly located in Central Haouz, along or near the surface wadis. The aquifer susceptibility
is high in places located near the N’Fis, Baaja and Issil wadis. Everywhere else, low-to-moderate susceptibility is observed.
This new approach therefore enables areas of vertical vulnerability and areas of susceptibility to be delineated separately.
As a result, it constitutes a valuable decision-making tool for optimising the management of aquifer water resources and land-use
planning. 相似文献
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旅游业关联效应极强,对区域经济有明显的带动作用。旅游业作为国民经济的一个影响因素,其收入的多少直接影响地区国内生产总值(GDP)。同时,旅游业通过关联效应带动相关产业发展,又对国内生产总值产生二次拉动效应。兴文石海世界地质公园自建立以来,其旅游业的发展对兴文县的国内生产总值起到了一定的带动作用。采用计量经济学的基本分析方法,以约翰·梅纳德·凯恩斯的乘数理论和柯布—道格拉斯的生产函数为依据,可以定量分析出旅游业对兴文国内生产总值的影响。通过分析兴文县旅游业的发展对县域经济的带动作用,对兴文县旅游业的管理和发展提出相应的建议和对策。 相似文献
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Contribution to characterisation of biochar to estimate the labile fraction of carbon 总被引：6，自引：0，他引：6
R. Calvelo Pereira J. KaalM. Camps Arbestain R. Pardo LorenzoW. Aitkenhead M. HedleyF. Macías J. HindmarshJ.A. Maciá-Agulló 《Organic Geochemistry》2011,42(11):1331-1342
Different analytical techniques were used to find the most reliable and economic method for determining the labile fraction of C in biochar. Biochar was produced from pine, poplar and willow (PI, PO and WI, respectively) at two temperatures (400 and 550 °C) and characterised using spectroscopic techniques [solid state 13C nuclear magnetic resonance spectroscopy (NMR)], molecular markers [pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS)], thermogravimetry (TG), elemental composition and wet oxidation (potassium permanganate and potassium dichromate). Short term incubation (110 h) of an A horizon from an Umbrisol amended with the biochar samples at two doses (7.5 and 15 t ha−1) was also carried out to provide supplementary information on the influence of biochar-soil interaction on CO2 evolution. Spectroscopic analysis demonstrated that the degree of biochar carbonisation was influenced by the type of feedstock and heating conditions and followed the order WI-400 < PI-400 ∼ WI-550 ∼ PO-400 < PO-550 < PI-550. The thermo-labile fraction of the biochar samples, estimated from TG, ranged between 21% and 49%. The fraction of total C oxidised with potassium permanganate (Cper/Ctotal) was <50 g kg−1 in all cases, whereas potassium dichromate (Cdichro/Ctotal) oxidation efficiency ranged between 180 and 545 g kg−1. For each type of feedstock, the highest values of either chemically or thermally degradable C corresponded to the biochar produced at low temperature. Results indicate that low cost methodologies, such as dichromate oxidation and TG, reflected the degree of biochar carbonisation, and could therefore be used to estimate the labile fraction of C in biochar. 相似文献
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HEIKKI NIINI 《Boreas: An International Journal of Quaternary Research》1986,15(3):230-230
Book reviewed in this article:
Lee, J. S. 1984: Introduction to Geomechanics . Responsible Editor Li Qifang, Translator Chen Qing-xuan 相似文献
Lee, J. S. 1984: Introduction to Geomechanics . Responsible Editor Li Qifang, Translator Chen Qing-xuan 相似文献
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发挥优势突出重点大力推进工程建设总承包工作 总被引：1，自引：0，他引：1
中国石油化工集团公司是国家在原中国石油化工总公司基础上,于1988年7月成立的特大型石油化工企业集团,是国务院确定的国家授权投资机构和国家控股公司。中国石化集团公司于2000年2月以独家发起方式成立了中国石油化工股份有限公司,同年10月中国石化股票分别在纽约、香港和伦敦成功上市。2001年9月在境内A 相似文献
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《Gondwana Research》2003,6(2):143-159
The paper reviews and integrates the recent geological and geochronological data, which allow us to recognize three stages of the evolution of the Paleo-Asian Ocean.The opening of the Paleo-Asian Ocean at 970-850 Ma is dated by the Nersin Complex in the Aldan shield, plagiogranites of the Sunuekit massif, enderbites of the Sludinsk Lake area, and passive margin sediments of the Patoma or Baikal series. The initial subduction (850-700 Ma) is marked by volcanic rocks, trondjemite and gabbro of the Sarkhoy island arc series. Collisions of microcontinents with Siberia at 660 to 620 Ma are evidenced by the exhumation of Muya eclogites (650 Ma), formation of migmatites and amphibolites of the Njurundukan belt (635 and 590 Ma), metamorphic units of the Near-Yenisei belt (640-600 Ma), and orogenic molasse (640-620 Ma). The Paleo-Asian Ocean maximally opened at 620-550 Ma, because at that time a long island arc composed of boninite volcanic rocks was formed. Primitive island arcs of that age have been reconstructed in Kazakhstan, Gorny Altai, West and East Sayan, and North Mongolia. HP and UHP rocks formed in two stages at 550-520 and 520-490 Ma. At 550-490 Ma oceanic islands and Gondwana-derived microcontinents (Kokchetav, Tuva-Mongolian, Central Mongolian and others) collided with the Cambrian-early Ordovician island arc of the Siberian continent. As a result, the island-arc system was extensively modified. Collision occurred twice at 550-520 and 520-490 Ma during which many HP and UHP rocks formed. At that time, the new oceans - the Junggar, Kazakhstan and Uralian - with an Ordovician island arc were formed. 相似文献