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继中国科协1988年8月颁布首届“青年科技奖”以来,全国各条战线又涌现出一大批优秀青年科技工作者,经中国科协第二届青年科技奖评审委员会评选,101名青年科技工作者荣获第二届“青年科技奖”,其中有五名青年地质工作者.中国地质学会推荐了三名候选人,石彦民和董树文二位同志光荣入选.颁奖活动将在1991年5月召开的中国科协第四次全国代表大会期间举行. 相似文献
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为深入贯彻落实科学发展观,全面贯彻胡锦涛总书记在纪念中国科协成立五十周年大会上的重要讲话精神,激励广大青年地质科技工作者为提高自主创新能力、建设创新型国家做出新贡献,根据中国地质学会评选"青年地质科技奖"条例规定,经青年地质科技奖专家评审委员会评审、第38届理 相似文献
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2016年5月6~7日,第5次全国青年工程地质学术研讨会在南京大学仙林校区顺利召开。本次研讨会是第三届工程地质专业委员会青年工作委员会成立以来组织召开的第一次围绕某一具体主题的学术会议,共有355位青年工作者参会。会议结合南京大学工程地质学科的研究特色,以“土体工程地质特性与结构”为主题,举行了20场特邀专题报告,报告内容丰富多彩,深度与广度兼备。本次研讨会是国内工程地质及相关领域青年学者开展讨论和深入交流的一次盛会,对推进青年学者之间的学术交流、加强与岩土工程等相关学科的学术纽带、锻炼青年学者的沟通组织能力、促进青年人才的成长起到了积极作用。 相似文献
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初冬的北京,阳光和煦。期待已久的首届全国青年地质工作者学术讨论会在中国科协,地质矿产部、中国地质学会领导下,以及许多单位的热情关怀下,于11月5日至9日在西山饭店隆重召开。出席会议代表有250人,其中青年地质工作者230人。他们来自25个省、市、自治区以及地质、冶金、石油、煤炭、地震、有色、中国科学院等各个部门及众多的大专院校,他们当中既有科技工作者,也 相似文献
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1999年10月28日至31日,第四届全国青年地质工作者学术讨论会在北京昌平石油大学召开。这次会议是由中国地质学会主办、中国地质学会青年工作委员会和石油大学(北京)共同承办。13个部门55个单位的121名青年地质学家(40岁以下)参加了会议。国土资源部副部长蒋承菘、中国地质学会常务副理事长陈毓川、石油大学总校校长张一伟及中国科学院地质与地球物理研究所、中国地质科学院、核工业地质局、石油大学(北京)的领导出席了会议。 蒋承菘副部长从科技创新、“两弹一星”、大庆油田的发现,李四光、黄汲清等老一辈地质学家的敬业精神、培养青年人才等诸方面全面阐述了青年科技工作者大有可为。 相似文献
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《矿物岩石地球化学通报》1990,(2)
2月26日,中国科协三届委员会委员、我会常务副理事长欧阳自远研究员在中国科协三届五次全委会上发言,介绍我会开展学术活动,奖掖青年出成果、出人才的具体做法,呼吁放宽对自然科学期刊的限制,促进学术交流和学科发展。 相似文献
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2017年7月21~23日,第6次全国青年工程地质学术研讨会在成都理工大学地质灾害防治与地质环境保护国家重点实验室顺利召开。本次研讨会是第三届工程地质专业委员会青年工作委员会成立以来组织召开的第二次围绕某一具体主题的学术会议,共有来自全国68家单位,包括高校、科研院所和工程单位的185位青年工作者参会。会议结合成都理工大学地质工程学科的研究特色,以“复杂条件下地质灾害形成机理与风险评价”为主题,举行了13场特邀专题报告、10场学术报告、3场圆桌讨论和1天的地震灾区野外考察,报告内容丰富多彩,涉及理论研究、试验研究与工程实践,深度与广度兼备。本次研讨会是国内工程地质及相关领域青年学者开展讨论和深入交流的一次盛会,对推进青年学者之间的学术交流与合作、加强多学科之间的交叉融合创新、促进“产、学、研”结合的成果转化、促进青年人才的成长起到了积极作用。 相似文献
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Ge Tongming Fan Limin Liu Jian Guangzhou Marine Geological Survey Ministry of Geology Mineral Resources of Chin Guangzhou 《《地质学报》英文版》1993,67(2):235-245
The presence of the reversals of the geomagnetic field within the Brunhes is indicated by paleomagnetic stuides on Cenozoic volcanic rocks in the Leizhou Peninsula, loess strata and Quaternary marine sediments in the Pearl River Mouth basin in China. These regional reversals occured at 0.58±0.13 Ma, 0.45 Ma and 0.47—0.48 Ma respectively according to the results of K-Ar isotopic dating and climatostratigraphic and biostratigraphic analyses. The reversals equivalent to the Emperor Event is suggested.The reversals revealed in different regions with various lithologic characters in China prove that the Emperor Event is a global reversal event rather than a geomagnetic excursion, and its confirmation will permit a precise definition of the Middle/Late Pleistocene boundary. 相似文献
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Detrital zircon reference for the North China block 总被引:17,自引:0,他引:17
U–Pb analyses of 250 single detrital zircons from Upper Proterozoic to Ordovician strata collected from the Zhuozi Shan in north-central China provide a detrital zircon reference for the North China block, a major crustal entity in the Asian tectonic collage. The results, which range in age from 1.72 to 2.97 Ga, shed new light on the age of the crystalline basement in North China, much of which is covered by younger sedimentary units. In addition, this detrital zircon reference can be used to help determine the provenance of clastic sedimentary units and for assessing validity of paleogeographic and regional tectonic models that include the complex history of Asian continental amalgamation, terrane accretion, and subsequent translation that is ongoing today. 相似文献
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Kuranakhite discovered in China for the first time 总被引:4,自引:0,他引:4
Zhou Xinchun Liu Liang Wang Shizhong Wang Yan Yang Jiankun Guo Nenglin Li Guanghui Hu Jianmin 《中国地球化学学报》1998,17(1):77-80
Kuranakhite was firstly discovered in the oxidized zone of the Kuranakh gold mine, southern Russia, and since then there has
been no report on it. Kuranakhite in this paper was discovered in the Jialu gold mine, Luonan County, Shaanxi Province. The
mineral often occurs as irregular granular aggregates varying from 0. 05 to 0. 25 mm in size. The mineral is light brown to
brown in color, translucent, brown in steak, and vitreous in luster. Hv is 231 – 439kg/mm2, HM = 4∼5 and measured density is 6.72(2)g/cm3. Its reflection color is bluishgray to light-blue and it shows middle anisotropism and weak bireflectance. Its polarization
color is blue to grayish-brown and there is no internal reflection. The index of refraction is:N
a = 2.01,N
β = 1. 98,N
γ = 1. 96. The average composition is PbO 45. 40 wt %, MnO2 16.41wt%, TeO3 38.10wt%, totalling 99. 91wt%. The empirical formula is Pb0.99Mn0.92 Te1.06O6, which can be simplified as PbMnTeO6. Principal lines in the X-ray power pattern [d(I)(hkl)] are:0.341 (100), (111); 0.2556(60), (130); 0.2043 (50), (041);0.1666 (20), (310); 0.1598(40), (241); and 0.1472(15), (330).
It was determined that kuranakhite is orthorhombic; its space group may be C;a = 0.511(1) nm,b = 0.891(2)nm,c = 0.532(l)nm, a:b = 0.57, c:b = 0.60;V = 0.242 (3) nm3;Z = 2, and calculated density = 6.66(1) g/ cm3.
This project was financially supported by both the Armed Police Headquarters of Gold Exploration and the Science Foundation
of Shaanxi Provincial Educational Commission (No.HJ96-2-4;96JK-026). 相似文献
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HUANG Baochun 《《地质学报》英文版》2016,90(Z1):35-35
正In order to investigate the tectonic setting of 1.77-1.78Ga dyke swarms emplaced into the central North China Craton(NCC),we carried out a paleomagnetic and magnetic fabric study on the well geochronologically 相似文献
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中国镍矿成矿规律初探 总被引:12,自引:0,他引:12
我国镍矿可分为岩浆型、海相沉积型和风化壳型3种预测类型.矿床形成时代较为连续,最早形成于中—新元古代,最晚形成于新生代,其中中—新元古代和晚古生代是形成矿床的两个高峰期;中—新元古代矿床主要分布在华北地块和扬子地块周缘,晚古生代镍矿主要分布在中亚造山带、峨眉山和塔里木大火成岩省范围内.岩浆型镍矿主要形成于大陆边缘裂解、造山带后碰撞伸展以及地幔柱3种构造背景,根据不同构造背景并结合主要岩浆作用特点,将与幔源基性—超基性岩有关的镍-铜-钴-铂族元素矿床成矿系列类型划分出与大陆裂解边缘幔源基性—超基性岩浆作用有关的镍-铜-钴-铂族元素矿床成矿亚类型、与地幔柱基性—超基性岩浆作用有关的镍-铜-钴-铂族元素矿床成矿亚类型、与造山带俯冲作用下幔源基性—超基性岩有关的镍-铜-钴-铂族元素矿床成矿亚类型、与造山带后碰撞伸展背景下幔源基性—超基性岩有关的镍-铜-钴-铂族元素矿床成矿亚类型等4种亚类型.分别对中—新元古代与大陆边缘裂解有关的镍铜(铂)矿床、寒武纪与黑色页岩有关的海相沉积型镍钼钒矿床、早二叠世与造山带伸展背景有关的镍铜矿床、晚二叠世与大火成岩省有关的镍铜(铂)矿床、新生代与风化壳有关的镍金矿床及其对应的典型矿床特征和成矿模式进行了叙述;认为大陆裂解边缘、地幔柱、造山带后碰撞伸展是我国镍矿形成的有利成矿地质背景,与邻近深大断裂、镁铁—超镁铁岩体、高MgO的原生岩浆(高镁玄武质岩浆)、深部岩浆作用、硫饱和与硫化物熔离共同组成岩浆型镍矿的6个重要地质条件. 相似文献
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国内首次发现的粤北下庄铀矿田竹筒尖矿床产出的束磷钙铀矿,在空间上与微晶石英和变钙铀云母紧密共生。该矿物多为纤维状、束状和放射状集合体;亮黄色,玻璃光泽,透明;条痕为浅黄色,摩氏硬度约为3;其具有一组平行于{010}的完全解理及平行于{100}和{001}的两组解理,贝壳状断口呈油脂光泽;单偏光下,该矿物为淡黄色;正交偏光下,具有鲜艳的高级干涉色。光性特征为对称消光,二轴晶负光性,正延性。电子探针分析显示,矿物主要由U、P、Ca这3种元素组成,其平均含量分别为UO3 68.64%、P2O5 11.70%、CaO 9.21%和杂质0.28%,另有H2O 9.25%,总量99.26%。按O=16计算的经验化学式可写为(Ca2.02,K0.05,Mg0.01)2.08(UO2,TiO2,PbO)2.97O1.97(PO4)2.03·6.32 H2O。X射线粉晶衍射分析表明,该矿物属于正交晶系,空间群为Pbca,晶胞参数:a=1.742 3(5) nm,b=1.603 2(4) nm,c=1.359 9(2) nm;α=β=γ=90°,V=3.798 64 nm3 ;强衍射线有7.994 Å和4.003 Å等。矿物的红外吸收光谱强峰主要为3 427.10、1 622.05、1 062.62、973.26和890.91 cm-1等。上述特征与已知的束磷钙铀矿极其类似。 相似文献
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Paleoproterozoic volcanic rocks in the southern margin of the North China Craton,central China:Implications for the Columbia supercontinent 总被引:1,自引:0,他引:1
The volcanic rocks of the Xiong'er Group are situated in the southern margin of the North China Craton(NCC).Research on the Xiong er Group is important to understand the tectonic evolution of the NCC and the Columbia supercontinent during the Paleoproterozoic.In this study,to constrain the age of the Xiong'er volcanic rocks and identify its tectonic environment,we report zircon LA-ICP-MS data with Hf isotope,whole-rock major and trace element compositions and Sr-Nd-Pb-Hf isotopes of the volcanic rocks of the Xiong'er Group.The Xiong'er volcanic rocks mainly consist of basaltic andesite,andesite.dacite and rhyolite,with minor basalt.Our new sets of data combined with those from previous studies indicate that Xiong'er volcanism should have lasted from 1827 Ma to 1746 Ma as the major phase of the volcanism.These volcanics have extremely low MgO.Cr and Ni contents,are enriched in LREEs and LILEs but depleted in HFSEs(Nb,Ta,and Ti),similar to arc-related volcanic rocks.They are characterized by negative zircon ε_(Hf)_(t) values of-17.4 to 8.8,whole-rock initial ~(87)Sr/~(86)Sr values of 0.7023 to 0.7177 andε_(Nd)(t) values of-10.9 to 6.4.and Pb isotopes(~(206)Pb/~(204)Pb =14.366-16.431,~(207)Pb/~(204)Pb =15.106-15.371,~(208)Pb/~(204)Pb= 32.455-37.422).The available elemental and Sr-Nd-Pb-Hf isotope data suggest that the Xiong'er volcanic rocks were sourced from a mantle contaminated by continental crust.The volcanic rocks of the Xiong'er Group might have been generated by high-degree partial melting of a lithospheric mantle that was originally modified by oceanic subduction in the Archean.Thus,we suggest that the subduction-modified lithospheric mantle occurred in an extensional setting during the breakup of the Columbia supercontinent in the Late Paleoproterozoic,rather than in an arc setting. 相似文献