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1.
《International Geology Review》2012,54(11):1403-1431
A review of Geochemistry of Steppes and Deserts was published in an earlier issue of International Geology Review (v. 5, no. 6, p. 737). On the basis of this review, the Committee recomended that the eight papers constituting the major portion of the symposium be translated and published in International Geology Review. Therefore, /he first of these translations is published below. The remaining papers will be published in succeeding issues of IGR when possible and will be presented in the order as listed in the table of contents in the original symposium.--AGI Translation Office. 相似文献
2.
Rock Reference samples, San Marcos Gabbro, GSM-1 and Lakeview Mountain Tonalite, TLM-1 总被引：1，自引：0，他引：1
F. J. FLANAGAN 《Geostandards and Geoanalytical Research》1986,10(2):111-120
Two rock samples from the San Marcos Gabbro and the Lakeview Mountain Tonalite of the Southern California Batholith were prepared as U.S. Geological Survey reference samples. These samples were chosen to supply reference data for rocks having intermediate silica contents in the range of 45-60 percent. Unpublished data by members of the U.S. Geological Survey and some published data are summarized, and provisional estimates of the major and minor oxide and traceelement contents are given. 相似文献
3.
《地质论评》是中国最重要的地质学核心期刊之一。根据《地质论评》中所发表的论文统计了论文核心著者,分析了著者合作度和著者所在的单位类型。其结果表明该刊已形成了连续的、素质较高的论文作者群、论文著者合作度呈上升趋势。 相似文献
4.
老挝万象平原不同矿区盐丘构造发育程度不同。由于盐丘控制了钾盐矿层的分布,因此研究盐丘及其发育程度并对其分级,对万象平原及其周边地区的钾盐找矿具有重要参考意义。通过对万象平原大量的钾盐勘查资料研究,将该区域内盐丘构造按发育程度不同分为Ⅲ级(较发育)、Ⅱ级(发育)和Ⅰ级(极发育)三个级别。属Ⅲ级的有通芒盐丘和班海盐丘,属Ⅱ级的有农刀及塔贡盐丘,属Ⅰ级的为农哈湖盐丘。在万象平原进行钾盐勘查时,发育程度不同的盐丘及盐丘的不同部位的工程布设不同,找矿效果也不同。 相似文献
5.
《International Geology Review》2012,54(1):23-26
On October 12, 1962, a joint session of the Presidium of the U.S.S.R. Academy of Sciences and the Collegium of the U.S.S.R. Ministry of Geology and Mineral Reserves adopted a resolution “On the present state of the geological sciences in the U.S.S.R. Academy of Sciences and the U. S. S. R. Ministry of Geology and Mineral Reserves and their prospects for the future.” Important contributions of Russian geologists are acknowledged, but attention is drawn to many shortcomings. Future goals of geological study and work are given in detail. Twenty-one lines of research to be concentrated on are given, covering all phases of geology, geophysics, and geochemistry. In discussing the failings of the geological profession in Russia, it is of interest to note the following comment: “Geological research in other countries is still insufficiently studied and applied, and we are not making adequate use of geologic information from abroad.” The list of the Russian geologists' shortcomings sounds vaguely familiar. —J. R. Hayes 相似文献
6.
The development of a standardized system for conveniently coding lithologic-log data for use in the digital computer has long been needed. The technique suggested involves a reduction of the original written alphanumeric log to a numeric log by use of computer programs. This numeric log can then be retrieved as a written log, interrogated for pertinent information, or analyzed statistically.publication authorized by Director, U.S. Geological Survey. 相似文献
7.
中国地质调查事业始于民国。1913年地质调查所正式成立,直至1950年裁撤,30余年间一直是中国地质学家的大本营。1916年初,地质调查所重新改组为地质调查局,并在行政上直接隶属农商部。同年夏天,地质研究所学生毕业后入地质调查局工作,成为地质调查局主要成员。1916年底,地质调查局被裁撤,又恢复地质调查所,但此后工作形式与机构管理均与调查局时期无太大变化。地质调查局因存在时间较短,加之史料不多,以往著述着墨不多。本文以《农商公报》、《政府公报》及地质调查局相关原始材料为基础,考察地质调查局成立始末、机构设置、人员组成及早期进行的地质调查工作。认为地质调查局的成立是中国地质学者建立独立地质调查专门机构的一次尝试。 相似文献
8.
桂西北南丹-荔波地区是我国重要的锡多金属矿床富集地,近年来油气勘探显示该区亦具有极大的海相页岩气成藏潜力。因此,深入探讨和认识该区中、新生代构造应力场特征及其构造演化是成矿规律研究和页岩气勘探过程中不可或缺的重要环节。本文以南丹-荔波地区广泛发育的褶皱、共轭节理和断层为研究对象,在详细野外观测的基础上,利用叠加褶皱、共轭节理分析以及断层滑动矢量等方法,反演了研究区中、新生代构造应力场变化。构造解析表明,该区中、新生代共经历了四期构造应力场的交替和演化,分别为NNE-SSW 向挤压、NW-SE 向挤压、NEE-SWW 向伸展和近E-W 向挤压。结合区域构造演化特征,推测NNE-SSW 向挤压应力场的形成可能与印支期华南大陆南北边缘与印支/华北板块碰撞闭合有关;NW-SE 向挤压应力场和NEE-SWW 向伸展应力场可能分别对应于燕山早期古太平洋板块向华南大陆之下的俯冲消减以及燕山晚期发生的弧后伸展作用;近E-W 向挤压应力场可能形成于喜山期印度?欧亚板块陆陆碰撞所产生远程效应的构造背景之下。 相似文献
9.
中国地质调查事业始于民国。1913年地质调查所正式成立,直至1950年裁撤,30余年间一直是中国地质学家的大本营。1916年初,地质调查所重新改组为地质调查局,并在行政上直接隶属农商部。同年夏天,地质研究所学生毕业后入地质调查局工作,成为地质调查局主要成员。1916年底,地质调查局被裁撤,又恢复地质调查所,但此后工作形式与机构管理均与调查局时期无太大变化。地质调查局因存在时间较短,加之史料不多,以往著述着墨不多。本文以《农商公报》、《政府公报》及地质调查局相关原始材料为基础,考察地质调查局成立始末、机构设置、人员组成及早期进行的地质调查工作。认为地质调查局的成立是中国地质学者建立独立地质调查专门机构的一次尝试。 相似文献
10.
11.
《Geology Today》1991,7(4):150-156
Book reviewed in this article:
A critique of the first volume of the Geological Conservation Review, by Douglas A. Bassett,
The Practical Fossil Finder by S. Parker.
Principles of Stratigraphic Analysis by H. Blart, W. B. N. Berry and S. Brande.
Crustal Evolution and Orogeny by S. P. H. Sychanthavong (ed.). A. A. Balkema, 1990.
Collins Dictionary of Geology by D. Farris Lapidus and I. Winstanley. Collins, 1990.
Glacial Indicator Tracing by R. Kujansuu and M. Saarnisto (eds). A. A. Balkema, 1990. ISBN 90 6191 857 X (hardback) U6.50, 252 pp. 相似文献
A critique of the first volume of the Geological Conservation Review, by Douglas A. Bassett,
The Practical Fossil Finder by S. Parker.
Principles of Stratigraphic Analysis by H. Blart, W. B. N. Berry and S. Brande.
Crustal Evolution and Orogeny by S. P. H. Sychanthavong (ed.). A. A. Balkema, 1990.
Collins Dictionary of Geology by D. Farris Lapidus and I. Winstanley. Collins, 1990.
Glacial Indicator Tracing by R. Kujansuu and M. Saarnisto (eds). A. A. Balkema, 1990. ISBN 90 6191 857 X (hardback) U6.50, 252 pp. 相似文献
12.
本文介绍了广东西部德庆地区近年来新发现的一个晚奥陶世动物群,包括化石产出层位、生物组合类群及其科学意义。该动物群产自原划分为中奥陶世东冲组的地层内,化石产出层位岩性为泥质粉砂岩,动物类群以三叶虫为主,伴生有腕足动物、棘皮动物及少量短剑类化石,化石保存多较破碎,仅少部分保存较好,分布非常集中,结合野外露头与沉积相特征,其沉积环境为正常浪基面至风暴浪基面间的高能滨浅海环境。该动物群的发现,不仅厘定了这套地层时代,而且丰富了粤西地区晚奥陶世的生物组合面貌,为该地区奥陶系的划分对比和区域地质演化研究提供了新资料。 相似文献
13.
Summary This workshop was primarily motivated by the goals of the International Decade for Natural Disaster Reduction (IDNDR), one of which is that each country should have a comprehensive national assessment of risks due to natural hazards by the year 2000. It was sponsored by the Environmental Adaptation Research Group (EARG) of Environment Canada, the International Partnerships of Environment Canada, the Geological Survey of Canada, Emergency Preparedness Canada and the Canadian National Committee of the IDNDR. The National Science Foundation of the U.S. and the Government of Mexico supported travel costs related to their delegates. The workshop dealt with both atmospheric hazards such as tornadoes and floods, and geological hazards such as earthquakes and landslides. Nine U.S., eight Mexican and 24 Canadian participants included academia, government and the private sector. Six projects were selected as being of joint interest to all three countries, with lead country and agencies identified for possible future cooperative work. 相似文献
14.
中央地质调查所作为中华民国时期成立最早、规模最大、最具国际声誉的国家级研究机构,在南京解放后它的演变过程目前尚缺少详实而准确的文献资料。本文基于历史档案,结合有关文献,较为详细地梳理了1949~1951年中央地质调查所先后被南京市军管会文化教育委员会(1949年5月~1950年6月)、华东军政委员会教育部(1950年7月~1950年12月)、中国地质工作计划指导委员会(1951年1月3日~1951年5月6日)接管的过程。本文还整理了1949年11月1日中国科学院正式成立后,中央地质调查所全所工作人员一致希望隶属中国科学院的经过,以及最终于1951年5月7日奉命改组为中国科学院地质研究所的过程。 相似文献
15.
Six national-scale, or near national-scale, geochemical data sets for soils or stream sediments exist for the United States. The earliest of these, here termed the ‘Shacklette’ data set, was generated by a U.S. Geological Survey (USGS) project conducted from 1961 to 1975. This project used soil collected from a depth of about 20 cm as the sampling medium at 1323 sites throughout the conterminous U.S. The National Uranium Resource Evaluation Hydrogeochemical and Stream Sediment Reconnaissance (NURE-HSSR) Program of the U.S. Department of Energy was conducted from 1975 to 1984 and collected either stream sediments, lake sediments, or soils at more than 378,000 sites in both the conterminous U.S. and Alaska. The sampled area represented about 65% of the nation. The Natural Resources Conservation Service (NRCS), from 1978 to 1982, collected samples from multiple soil horizons at sites within the major crop-growing regions of the conterminous U.S. This data set contains analyses of more than 3000 samples. The National Geochemical Survey, a USGS project conducted from 1997 to 2009, used a subset of the NURE-HSSR archival samples as its starting point and then collected primarily stream sediments, with occasional soils, in the parts of the U.S. not covered by the NURE-HSSR Program. This data set contains chemical analyses for more than 70,000 samples. The USGS, in collaboration with the Mexican Geological Survey and the Geological Survey of Canada, initiated soil sampling for the North American Soil Geochemical Landscapes Project in 2007. Sampling of three horizons or depths at more than 4800 sites in the U.S. was completed in 2010, and chemical analyses are currently ongoing. The NRCS initiated a project in the 1990s to analyze the various soil horizons from selected pedons throughout the U.S. This data set currently contains data from more than 1400 sites. This paper (1) discusses each data set in terms of its purpose, sample collection protocols, and analytical methods; and (2) evaluates each data set in terms of its appropriateness as a national-scale geochemical database and its usefulness for national-scale geochemical mapping. 相似文献
16.
F.J. Flanagan 《Geochimica et cosmochimica acta》1973,37(5):1189-1200
Best values for constituents determined in a rock analysis and for trace elements are collected for samples prepared by the Centre de Recherches Petrographiqueset Geochimiques, France, the Canadian Standard Reference Materials Project (formerly SSC), the Geological Survey of Japan, the National Institute for Metallurgy, South Africa, the U.S. Geological Survey and the Zentrales Geologisches Institut, D.D.R. 相似文献
17.
18.
《International Geology Review》2012,54(11):1992-1993
Eighteen resolutions were adopted by the 12th Session of the Committee on Absolute Dating of Geologic Formations of the U.S.S.R. Academy of Sciences. The resolutions report on the activities of the Committee on age dating and efforts being made to standardize methods and procedures of age dating. Of particular interest are 1) the resolution recommending a proposal to the International Geological Congress and International Geological Union for international unification of the calculation constants required in the potassium-argon method and 2) a recommendation concerning a more detailed breakdown of the Precambrian. — F. E. Moore. 相似文献
19.
天山造山带位于中亚造山带最南端,是研究和认识中亚造山带晚古生代增生造山过程的关键地区。本文聚焦于天山造山带东段发育的最晚一期脆韧性构造变形,通过对阿其克库都克断裂带、康古尔断裂带和哈尔里克构造带等变形带内的构造几何学和运动学特征解析,认为阿其克库都克断裂带表现为由南向北逆冲兼右行剪切变形特征,康古尔断裂带表现为南北向挤压兼右行剪切变形特征,哈尔里克构造带表现为由北向南的逆冲叠加稍晚期的左行走滑剪切变形特征。结合大量已有的构造热年代学数据分析,指出各构造单元内最晚一期脆韧性变形时间为二叠纪晚期-中三叠世,指示该时间段内近东西走向的天山造山带东段和北西-南东走向的东准噶尔造山带与西侧哈萨克斯坦弧形造山系呈现为三向汇聚的动力学特征,代表中亚造山带增生造山末期的演化特征。 相似文献
20.
由俄罗斯科学院远东分院、美国地质调查局、蒙古科学院、中国吉林大学地球科学学院、朝鲜地质矿业学院、日本地质调查局合作建立的“东北亚地区矿产资源、成矿学和构造学地理信息系统”,整合了东北亚（包括俄罗斯远东地区、西伯利亚东部、中国东北部、蒙古、朝鲜半岛、日本等地区）地理学、地球动力学、原生矿床、外生砂矿床、成矿带等信息,为该地区区域矿产资源及地质找矿信息的存储、处理、分析、检索、共享和推广提供便利. 相似文献