黄汲清先生诞辰100周年纪念大会在京隆重举行

2004年3月30日是黄汲清先生诞辰100周年。6月7日,黄汲清先生诞辰100周年纪念大会在北京京西宾馆隆重举行。这次纪念大会是由国土资源部负责,联合全国政协办公厅、科学技术部、中国科学院、中国科学技术协会、九三学社中央、中国石油天然气集团公司、中国石油化工集团公司、中国海洋石油总公司共同发起,并委托中国地质学会、中国地质     

丁文江先生与北京大学地质学系

2007年4月13日是丁文江先生诞辰120周年。丁文江先生是我国地质事业的创始人与奠基者之一,他非常重视地质人才的培养。丁先生对北京大学地质学系非常关心,给予过很多支持、帮助和指导,他还担任过北京大学地质学系研究教授。在纪念丁文江先生诞辰120周年之际,谨以此文表达对丁文江先生的崇敬和缅怀。[第一段]     

丁文江与中国区域地质调查

正丁文江是中国地质事业开拓者和奠基人之一,在地质研究、矿产调查、创立地质学会、兴办地质教育等方面做出了卓越贡献。值此丁先生诞辰130周年,缅怀地质先辈,是很有意义的也是很有必要的。1丁先生主要生平履历丁文江,于1887年4月13日生于江苏泰兴县黄桥镇,字在君。早年抱着"科学救国"的理念,于1902年留学日本,1904年转赴英国留学,1911年毕业于英国格拉斯哥大学,取     

第二届黄汲清青年地质科学技术奖颁发

20 0 4年 6月 7日 ,在黄汲清先生诞辰 10 0周年纪念大会上 ,黄汲清青年地质科学技术奖基金管理委员会宣布了《关于颁发第二届黄汲清青年地质科学技术奖的决定》,并由曾培炎副总理等向获奖者颁奖。大会由国土资源部部长、中国地质学会代理事长孙文盛同志主持。黄汲清青年地质科学技术奖基金管理委员会副主任、中国科学院地学部主任孙枢院士宣读了《关于颁发第二届黄汲清青年地质科学技术奖的决定》。决定说 ,本次评奖工作得到广大野外地质工作者、地质科研工作者、地质教育工作者和各地质部门的大力支持。经专家评审 ,黄汲清青年地质科学技术…     

纪念丁文江100周年章鸿剑110周年诞辰及中国地质事业早期史讨论会在北京大学举行

1987年10月5日上午,在北京大学举行了纪念丁文江100周年章鸿剑110周年诞辰及中国地质事业早期史讨论会开幕式,全国政协副主席钱昌照、中国地质学会理事长程裕淇,前任理事长黄汲清、该学会地质学史研究     

"刘东生星"在太空闪烁——纪念刘东生院士逝世一周年活动隆重举行

由中国科学院地质与地球物理研究所和中国第四纪科学研究会联合举办的刘东生先生逝世一周年纪念大会,2009年3月6日在北京中国科学院地质与地球物理研究所隆重召开.大会举行了"刘东生星"(58605号小行星)的命名仪式、<纪念刘东生院士> 文集和<黄土与干旱环境>的首发式.     

第五届中国（北京）国际地质与矿山技术装备展览暨论坛在京隆重开幕

9月10日,作为2013年商务部引导支持展会,中国地质调查局与中国地质装备总公司联合主办的“第五届中国（北京）国际地质与矿山技术装备展览暨论坛”在北京全国农业展览馆隆重开幕。该展会是贯彻国务院《关于加强地质工作决定》和《找矿突破战略行动纲要》精神、推进我国地质找矿突破战略目标顺利实现的一次重要活动。国土资源部、中国机械工业集团有限公司、中国矿业联合会、中国地质调查局、中国地质装备总公司、中国核工业集团公司的相关领导参加了展会开幕式。开幕式由中国地质装备总公司副总经理卢元林主持,中国地质调查局副局长王学龙、中国机械工业集团有限公司副总裁刘大功分别为大会致词;     

地质矿产调查评价工作将开展至2020年

<正>2012中国国际矿业大会消息,由中国地质调查局负责组织实施的全国地质矿产调查评价专项工作将在之前工作3年的基础上,继续开展至2020年。中国地质调查局总工程师室副主任伍光英介绍,这是继续发挥公益性地质工作在资源保障、环境保     

纪念丁文江先生逝世五十周年

丁文江先生逝世五十周年纪念活动,于1986年4月23日至25日在湖南长沙进行。23日上午在湖南省科学技术协会礼堂隆重举行了丁文江先生逝世五十周年纪念会,出席纪念会的有湖南省委、省顾委、省人大常委会、省政府、省政协和省科委、科协,湖南省地质学会等负责同志,以及来自全国的地质学家和地质老前辈黄汲清、李春昱、曾世英、夏湘蓉、陈国达等一百五十人。丁文江先生的亲属专程从上海、北京来到长沙参加纪念活动。丁文江先生(1887—1936)字在君,江苏泰兴人,1902年留学日本,1904年转赴英国,1911年毕业于英     

纪念尹赞勋先生诞辰100周年

尹赞勋先生 1 90 2年 2月 2 3日生于河北省平乡县大时村 ,今年是他诞辰 1 0 0周年纪念。先生全面系统地研究了中国的志留系 ,著有“志留纪之中国”等文 ,奠定了中国志留系研究之基础 ,故中国地质界有“尹志留黄二叠”之口碑。他毕生致力于我国地层学规范的研究 ,领导编篡了“中国区域地层表”、“中国地层规范草案说明书”、“中国地层典·石炭系”等 ,使我国地层研究得以与国际地层规范统一和接轨。先生最早把板块构造学说引入国内 ,深信“板块学说具有重大理论意义 ,它把辩证法带进了地质构造学 ,使地球变活了” ,影响至广至远。本刊今年…     

钻井岩心三个力学参数的测试

介绍了钻井岩心机械特性的测试方法－－三轴应力试验，通过对两地区部分岩心的测试，得出了岩石泊松比，杨氏弹性模量和抗拉强度等岩石力学参数，数据分析表明，岩石泊松比和杨氏弹性模量都随围压增加而增大，并给出了经验关系式。     

Modified biomass of Phanerochaete chrysosporium immobilized on luffa sponge for biosorption of hexavalent chromium

Phanerochaete chrysosporium, a white rot basidiomycete, was immobilized over Luffa cylindrica sponge discs, treated with 0.1 N HCl and its potentiality for the removal of hexavalent chromium [Cr(VI)] from water was investigated in both batch and in up-flow fixed-bed bioreactor. The acid treatment of biomass increased the uptake capacity and percentage removal of Cr(VI) from 33.5 to 46.5 mg g^?1 and 67 to 92 %, respectively. Maximum uptake of Cr(VI) was achieved at pH 2, temperature 40 °C after 100 min of contact time. The Cr(VI) sorption on the biomass was better explained by Langmuir isotherm. Thermodynamic studies indicated that the process was spontaneous and endothermic. Sorption kinetic study showed that pseudo-second-order model best correlates the Cr(VI) sorption on the biomass as compare to pseudo-first-order kinetic model. The performance of fixed-bed bioreactor was evaluated at different bed heights (5, 15 and 25 cm) and flow rates (1.66, 4.98 and 8.33 mL min^?1) by using bed depth service time model. Response surface methodology statistical method was applied for optimizing the process parameters. FTIR analysis showed that amino groups were mainly involved in adsorption of Cr(VI).     

Infrared vibrational spectra of Beta-Phase Mg2SiO4 and Co2SiO4 to Pressures of 27 GPa

Infrared absorption spectra of the high-pressure polymorphs β-Mg₂SiO₄ and β-Co₂SiO₄ have been measured between 0 and 27 GPa at room temperature. Grüneisen parameters determined for 11 modes of β-Mg₂SiO₄ (frequencies of 300 to 1,050 cm^?1) and 5 modes of β-Co₂SiO₄ (490 to 1,050 cm^?1) range between 0.8 and 1.9. Averaging the mid-infrared spectroscopic data for β-Mg₂SiO₄ yields an average Grüneisen parameter of 1.3 (±0.1), in good agreement with the high-temperature thermodynamic value of 1.35. Similarly, we find a value of 1.05 (±0.2) for the average spectroscopic Grüneisen parameter of β-Co₂SiO₄.     

Crystal structures of Ni2SiO4 and Fe2SiO4 as a function of temperature and heating duration

X-ray structure refinements of Ni₂SiO₄ and Fe₂SiO₄ spinels have been made as a function of temperature and heating duration by intensity measurements at high temperatures and room pressure. The lattice parameters of Ni₂SiO₄ spinel linearly increased with temperature up to 1,000° C. However, Fe₂SiO₄ spinel exhibited a nonlinear thermal expansion and was converted to a polycrystalline mixture of spinel and olivine by heating of less than one-hour at 800° C. The ratios between the octahedral and tetrahedral bond lengths D _oct/D _tetr and between the shared and unshared edge distances (O-O)_sh/(O-O)_unsh in Fe₂SiO₄ spinel were both much larger than those in Ni₂SiO₄. These ratios increase with temperature. The Fe₂SiO₄ spinel more readily approached a activation state which facilitated the transition to the olivine structure than the Ni₂SiO₄ spinel. The lattice parameter of Ni₂SiO₄ spinel decreased with heating period at constant temperatures of 700° C and 800° C. The parameter of the quenched sample after heating for 52 h at 700° C was smaller than that of the nonheated sample. The refinements of the site occupancies at each heating duration indicated an increase in the cation deficiency in both tetrahedral and octahedral sites. Electron microprobe analysis, however, proved no significant difference in the chemical compositions between the quenched and nonheated samples. Si and Ni atoms displaced from normally occupied spinel lattice sites are assumed to settle in vacant sites defined by the cubic close packed oxygen sublattice in a manner which preserves the electric neutrality of the bulk crystal.     

福建华安玉的矿物学特征及成因研究

通过福建华安玉野外地质观察、室内显微镜下观察、矿物电子探针分析和X射线粉末衍射分析,研究了华安玉的结构构造和矿物组成,结果表明: 华安玉显示出不同艳丽的条带,实质上是不同矿物分带的体现,绿-墨绿色条带主要由铁次透辉石组成,红色或淡肉红色条带主要由钾长石组成,灰白色或乳白色条带主要由石英、方解石等矿物组成。并对华安玉的形成构造环境和成因进行了初步研究,认为其形成于被动大陆边缘的潮坪泻湖环境,原岩主要是钙质粉砂岩、泥灰岩、硅质岩等,燕山期强烈的构造岩浆活动对其进行了多期热接触变质或交代作用,钙质粉砂岩、泥灰岩、硅质岩等经变质成为透辉石角岩。     

Moho structure of Central America based on three-dimensional lithospheric density modelling of satellite-derived gravity data

The Central American isthmus hosts a highly variable Moho structure due to the diverse origin and composition of the crustal basement and the influence of large-scale neotectonic processes. Gravity data from the combined geopotential model EGM2008 were interpreted via forward modelling to outline the three-dimensional lithospheric density structure along the Middle American Trench, as well as the segmentation of the oceanic Cocos and Nazca plates and the overriding Caribbean plate. In this work, results for the depth of the Moho obtained from the density model are presented. The Quaternary volcanic arc correlates with a maximum Moho depth of 44 km in western Guatemala. To the south-east of the continental shelf, the Caribbean plate shows Moho depths between 20 and 12 km whereas to the north, values as shallow as 8 km are observed at the Cayman trough. For the oceanic Cocos plate, depths between 16 and 21 km are obtained for the Moho along the Cocos ridge, contrasting with values between 15 and 12 km for the seamount segment and 8 and 11 km for the segments of the crust that are not affected by the Galapagos hot-spot track.     

利用成像测井评价储层孔隙空间的二维非均质性

针对当前储层非均质性评价中表征方法单一、评价仅限于一维的研究现状,提出利用FMI成像测井评价储层井周二维孔隙空间非均质性的方法。通过比较目标储层的孔隙度频数分布曲线,从宏观上判断储层井周二维非均质性。选取合适的孔隙度二值化阈值,明确原、次生孔隙的所在位置。利用成像孔隙度谱将储层进行分类,判断目标储层的储集特性。利用储层非均质程度系数T定量评价储层井周二维非均质性。相比于利用常规测井识别裂缝、孔洞,通过FMI成像测井判断储层非均质性具有评价形式多样化、连续性、方位性、直观性和分辨率较高的优势,从而提高对储层非均质性的认知程度。     

A Sm-Nd isotopic study of the South Harris Igneous Complex,the Outer Hebrides

Sm-Nd geochronology may be used to bracket the age of metamorphism in rocks which are difficult to date by other methods. By coupling whole rock Sm-Nd analyses of the principal members of the South Harris Igneous Complex, with Sm-Nd mineral isochrons on two anothositic gabbros, the age of granulite facios metamorphism has been defined. Whole rock analyses of three pairs of closely spaced samples of the anorthosite give consistent ages averaging 2.18±0.06 Gyr, but in general the data from the anorthosite do not define an isochron as a result of variable contamination of the evolving magma chamber. Whole rock data on the tonalite indicate that it is younger than 2.06 Gyr; its mean T_CHUR age is 1.86±0.05 Gyr. Garnet-pyroxene-amphibole-plagioclase mineral isochrons on two anorthosite samples give identical 1.87±0.04 Gyr ages which date cooling after the high pressure granulite facies metamorphism. Together with the tonalite whole rock data this defines the age of that metamorphism and confirms Dearnley's original assignment of an early Laxfordian age.     

中国锌矿资源开发利用形势分析

锌是一种仅次于铜和铝的重要有色金属原材料,中国是全球第二大锌资源国,第一大消费国、生产国和进口国,锌对国民经济发展有着十分重要的意义.本文分析中国锌矿资源供需格局,目的是为了掌握国内锌矿资源开发利用现状,为未来的开发利用规划提供参考.本文采用最新数据资料,在系统梳理全球锌矿资源储量、产量、生产商以及消费等供需格局的情况...