共查询到20条相似文献，搜索用时 328 毫秒
1.
天然和实验冲击球粒陨石矿物的变形变质比较研究谢先德陈鸣戴诚达（中国科学院广州地球化学研究所，广州５１０６４０）Ａ．Ｅｌ．Ｇｏｒｅｓｙ（Ｍａｘ－ＰｌａｎｃｋＩｎｓｔｉｔｕｔｆｕｒＫｅｒｎｐｈｙｓｉｋ，６９０２９Ｈｅｉｄｅｌｂｅｒｇ，Ｇｅｒｍａｎｙ）关键... 相似文献
2.
ＰｒｅｃａｍｂｒｉａｎＭｅｔａｍｏｒｐｈｉｓｍｏｆＴｉｙａ－ＯｌｏｋｉｔＭｅｔａｍｏｒｐｈｉｃＢｅｌｔｉｎＮｏｒｔｈｅｒｎＢａｌｋａｌＲｅｇｉｏｎａｎｄｉｔｓＭｅｔａｌｌｏｇｅｎｙ￥Ａ．Ｉ．Ｓｉｚｙｋｈ；Ａ．Ａ．Ｂｅｌｏｇｏｌｏｖ（Ｄｅｐａｒｔｍｅｎ... 相似文献
3.
苏锡常平原第Ⅱ承压水超采区划分方法 总被引：1，自引：0，他引：1
苏锡常平原第Ⅱ承压水超采区划分方法陈锁忠（江苏省地质环境监测总站，南京，２１００４９）关键词：地下水，含水层，超采区，水文地质，江苏。ＭｅｔｈｏｄｔｏＣｌａｓｓｉｆｙｔｈｅＯｖｅｒｌｏａｄＭｉｎｉｎｇＤｉｓｔｒｉｃｔｓｏｆＮｏ．ⅡＣｏｎｆｉｎｅｄＷａ... 相似文献
4.
《Scientia Geologica Sinica》1998,(2)
１．ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅｓｙｓｔｅｍａｔｉｃｔｈｅｏｒｙｉｎＲｏｃｋＭａｓＥｎｇｉｎｅｅｒｉｎｇＧｅｏｌｏｇｙｉｓｔｈｅＲｏｃｋＭａｓＥｎｇｉｎｅｅｒｉｎｇＧｅｏｍｅｃｈａｎｉｃｓｅｓｔａｂｌｉｓｈｅｄｂｙＧｕＤｅｚｈｅｎ（１９７９）．Ｈｅ... 相似文献
5.
不同熔（溶）矿方法对硅酸盐岩石中氧化钛分析结果的影响苗升明江苏省东海县环境监测站，东海，２２２３００关键词：熔（溶）矿法，硅酸盐岩石，氧化钛，化学分析，江苏东海ＥｆｆｅｃｔｉｖｅｎｅｓｓｏｆＤｉｆｆｅｒｅｎｔＭｅｔｈｏｄｓｏｆＭｅｌｔｉｎｇｏｒＤｉｓ... 相似文献
6.
Ｊｉａｏｄｏｎｇ Ｇｒａｎｉｔｏｉｄｓ ａｎｄ Ｇｏｌｄ Ｍｉｎｅｒａｌｉｚａｔｉｏｎ￥ＣｈｅｎＧｕａｎｇｙｕａｎ；ＳｕｎＤａｉｓｈｅｎｇ；ＳｈａｏＹｕｅ（ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏｌｏｇｙａｎｄＭｉｎｅｒａｌＲｅｓｏｕｒｃｅｓ，ＣｈｉｎａＵｎｉ... 相似文献
7.
曹亚文 《矿物岩石地球化学通报》1995,(3)
矿物的定义Ｅ．Ｈ．Ｎｉｃｋｅｌ（ＤｉｖｉｓｉｏｎｏｆＥｘｐｌｏＴａｔｉｏｎ＆Ｍｉｎｉｎｇ，ＣＳＩＲＯ，ＷｅｍｂｌｅｙＷＡ６０１４，Ａｕｓｔ，ｔｒａｌｉａ）响应矿物学界提出和要求颁布的、与当代技术发展相适应的矿物新定义的建议，国际矿物协会（ＩＭＡ）新矿... 相似文献
8.
Cheng Jie 《中国地质大学学报(英文版)》1995,(1)
Ａ Ｎｅｗ Ｍｉｄ Ｅａｒｌｙ Ｐｌｅｉｓｔｏｃｅｎｅ Ｍａｍｍａｌｉａｎ ＦａｕｎａＤｉｓｃｏｖｅｒｅｄ ｉｎ Ｃｈｏｕｋｏｕｔｉｅｎ，ＣｈｉｎａａｎｄＩｔｓＡｐｐｌｉｃａｔｉｏｎ ｉｎ Ｂｉｏｓｔｒａｔｉｇｒａｐｈｙ￥ＣｈｅｎｇＪｉｅ（Ｄｅｐａｒ... 相似文献
9.
Zhu Yanming 《中国地质大学学报(英文版)》1998,9(3):248-249
Ｗｅｃｏｌｅｃｔｅｄｏｒｉｅｎｔｅｄｍａｇｎｅｔｏｓｔｒａｔｉｇｒａｐｈｉｃｓａｍｐｌｅｓａｔｔｈｅｓａｍｅｂｅｄ（Ｂｅｄ２７,ｌｉｍｅｓｔｏｎｅ）ｏｆＡａｎｄＤｓｅｃｔｉｏｎｓｎａｍｅｄｂｙＳｈｅｎｇｅｔａｌ．（１９８４）ｏｆＭｅｉｓｈａｎｓｅｃｔ... 相似文献
10.
Ｒｉｅｔｅｖｌｄ方法是采用粉末衍射进行晶体结构修正及解析的一种方法。Ｒｉｅｔｖｅｌｄ方法的代表软件是Ｒ．Ａ．Ｙｏｕｎｇ程序。该程序给用户使用的主要困难是由于其输入控制文件（ＩＣＦ），是一个严格格式化的文本文件，其次是在运行时受到常规内存的限制。本文介绍了用ＭｉｃｒｏｓｏｆｔＣ７．０及ＭｉｃｒｏｓｏｆｔＳＤＫ３．１对Ｒ．Ａ．Ｙｏｕｎｇ程序的改进，（１）用对话框输入各种控制参数，形成初始化文件（ＩＮＩ），然后再将其转换为输入控制文件（ＩＣＦ）；（２）用Ｗｉｎｄｏｗｓ多文档界面（ＭＤＩ）实现图形显示，编辑和存储；（３）设计一软件接口，使在Ｗｉｎｄｏｗｓ下启动Ｒ．Ａ．Ｙｏｕｎｇ计算程序；（４）用ＦＯＲＴＲＡＮＰｏｗｅｒＳｔａｔｉｏｎ编译器对Ｒ．Ａ．Ｙｏｕｎｇ程序源代码进行重新编译，使其不受常规内存限制。用改进后的Ｒ．Ａ．Ｙｏｕｎｇ程序，对绿辉石的结构进行了修正 相似文献
11.
Emily Keeble David I. Whiteside Michael J. Benton 《Proceedings of the Geologists' Association. Geologists' Association》2018,129(2):99-119
Pant-y-ffynnon Quarry in South Wales yielded a rich cache of fossils in the early 1950s, including articulated specimens of new species (the small sauropodomorph dinosaur Pantydraco caducus and the crocodylomorph Terrestrisuchus gracilis), but no substantial study of the wider fauna of the Pant-y-ffynnon fissure systems has been published. Here, our overview of existing specimens, a few described but mostly undescribed, as well as freshly processed material, provides a comprehensive picture of the Pant-y-ffynnon palaeo-island of the Late Triassic. This was an island with a relatively impoverished fauna dominated by small clevosaurs (rhynchocephalians), including a new species, Clevosaurus cambrica, described here from a partially articulated specimen and isolated bones. The new species has a dental morphology that is intermediate between the Late Triassic Clevosaurus hudsoni, from Cromhall Quarry to the east, and the younger C. convallis from Pant Quarry to the west, suggesting adaptive radiation of clevosaurs in the palaeo-archipelago. The larger reptiles on the palaeo-island do not exceed 1.5?m in length, including a small carnivorous crocodylomorph, Terrestrisuchus, and a possible example of insular dwarfism in the basal dinosaur Pantydraco. 相似文献
12.
Gilles Serge Odin 《Comptes Rendus Geoscience》2002,334(6):409-414
Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414. 相似文献
13.
The effect of water on accessory phase solubility in subaluminous and peralkaline granitic melts 总被引：4，自引：0，他引：4
The solubilities of columbite, tantalite, wolframite, rutile, zircon and hafnon were determined as a function of the water contents in peralkaline and subaluminous granite melts. All experiments were conducted at 1035 °C and 2 kbar and the water contents of the melts ranged from nominally dry to approximately 6 wt.% H2O. Accessory phase solubilities are not affected by the water content of the peralkaline melt. By contrast, solubilities are affected by the water content of the subaluminous melt, where the solubilities of all the accessory phases examined increase with the water content of the melt, up to 2 wt.% H2O. At higher water contents, solubilities are nearly constant. It can be concluded that water is not an important control of accessory phase solubility, although the water content will affect diffusivities of components in the melt, thus whether or not accessory phases will be present as restite material. The solubility behaviour in the subaluminous and peralkaline melts supports previous spectroscopic studies, which have observed differences in the coordination of high field strength elements in dry vs. wet subaluminous granitic glasses, but not for peralkaline granitic glasses. Lastly, the fact that wolframite solubility increases with increasing water content in the subaluminous melt suggests that tungsten dissolved as a hexavalent species. 相似文献
14.
Muriel Rocher Stéphane Baize Stéphane Jaillet Edward Marc Cushing Yannick Lozac&#x;h Francis Lemeille 《Comptes Rendus Geoscience》2003,335(8):701-708
Calcite samples were extracted both from the rock matrix and the superficial coating of a karstified fault plane of an underground quarry, located in the eastern border of the Paris basin. The karstification is dated as Quaternary. Analysis of mechanical calcite twinning reveals that only the calcite matrix has also undergone a compression trending WNW that can be attributed to the Mio-Pliocene alpine collision. Both coating and matrix have undergone a strike-slip regime with σ1 roughly trending north–south, that could correspond to the regional present-day state of stress, a strike-slip compression rather trending NNW, modified by local phenomena. To cite this article: M. Rocher et al., C. R. Geoscience 335 (2003). 相似文献
15.
正20141756 Chen Ruige(Mathematical College,China University of Geosciences,Beijing100083,China);Zhou Xun Numerical Simulation of Groundwater Level Fluctuation in a Coastal Confined Aquifer with Sloping Initial Groundwater Level Induced by the Tide(Geological Bulletin of China,ISSN1671-2552,CN11-4648/P,32(7),2013,p.1099-1104,6 illus.,16 refs.) Key words:confined water,groundwater level 相似文献
16.
正20141408 Cai Jia(Institute of Geology,Chinese Academy of Geological Sciences,Beijing100037,China);Liu Fulai Petrogenesis and Metamorphic P-T Conditions of Garnet-Spinel-Biotitebearing Paragneiss in Danangou Area,Daqingshan-Wulashan Metamorphic Complex Belt(Acta Petrologica Sinica,ISSN1000-0569,CN11-1922/P,29(7), 相似文献
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18.
正20142386An Guoying(China Aero Geophysical Survey and Remote Sensing Center for Land and Resources,Beijing 100083,China)Application of Satellite Remote Sensing in Regional Hydrogeological Investigation:Taking Cenozoic Strata in Wenquan Sheet(1∶250 000)of Karakoram Range as an Example(Geosci- 相似文献
19.
正20141016An Chengbang(Key Laboratory of Western China’s Environmental Systems,Ministry of Education,Lanzhou University,Lanzhou 730000,China);Zhao Yongtao Lake Records during the Last Glacial Maximum from Xinjiang,NW China and Their Climatic Impli- 相似文献
20.
正20141538 Cao Qing(School of Earth Sciences and Engineering,Xi’an Petroleum University,Xi’an 710065,China);Zhao Jingzhou Characteristics and Significance of Fluid Inclusions from Majiagou Formation,Yichuan Huangling Area,Ordos Basin(Advances in Earth Science,ISSN1001-8166,CN62-1091/P,28(7),2013,p.819-828,7 illus.,3 tables,43 refs.) 相似文献