共查询到20条相似文献，搜索用时 203 毫秒
1.
区域地质调查是一项综合性的基础地质工作，它几乎涉及地质学领域的各个方面，其９０％以上的数据与空间位置有密切关系。因此，ＧＩＳ在区调工作中有着广阔的应用前景。针对区调工作的特点和需要，阐述了应用ＧＩＳ时必须解决的问题，包括硬件的配备、软件的选择、人才的培养和标准化。重点论述了ＧＩＳ在建立全国地质图图库、区调填图和全国区调管理中的应用前景及其重要意义 相似文献
2.
“3S”技术整合在区域地质调查研究中的应用初探 总被引：10，自引：1，他引：10
简要阐述了遥感（ＲＳ）、地理信息系统（ＧＩＳ）和全球定位系统（ＧＰＳ）在区域地质调查研究中的应用现状及其整合化趋势。“３Ｓ”技术为区调研究提供了新的潜力巨大的技术支持；着重从“３Ｓ”技术整合的角度，探讨了它在我国第二代区调填图中的基本应用模式以及实施中的有关问题。 相似文献
3.
遥感与地理信息系统的关系 总被引：2，自引：0，他引：2
遥感（ＲＳ）具有多时相、多信息等特征,因此,航空航天遥感可作为地理信息系统（ＧＩＳ）的信息源及数据更新的手段。ＧＩＳ强大的数据管理及数据分析功能又为ＲＳ得以应用提供了可能。从应用角度出发,探讨了两者的关系。 相似文献
4.
文章以榆关镇幅为例，阐述了ＧＩＳ在１：５万区调中的应用问题。物化探遥感资料按地质需求由计算机处理成各种图件，地形图则划分图层并赋予其属性，建立地形资料ＧＩＳ系统；野外工作采用手工记录，室内微机处理的工作方式，野外连图采用手工，而后清绘，通过扫描输入微机。按地质体分布构造等建立图层并用地理编码将其与数据库相连，叠加，编排图层，编制地质图，最终建立１；５万区调ＧＩＳ系统。 相似文献
5.
１：２０万数字地质图空间数据库的建立为应用ＧＩＳ技术对多源地学信息进行综合分析和解释奠定了基础。本文论述了应用ＡＲＣ／ＩＮＦＯ和ＭＡＰＧＩＳ等ＧＩＳ系统,各取所长地建立数字地质图空间数据的方法,总结了建库工作中的经验和应注意的一些问题,探讨了ＭＡＰＧＩＳ与ＡＲＣ／ＩＮＦＯ之间数据转换的方法,提出了本数据库在资料评价工作中的应用前景。 相似文献
6.
MAPGIS在国土资源大调查中的应用介绍 总被引：2，自引：0，他引：2
国土资源大调查离不开地理信息系统的应用,ＭＡＰＧＩＳ是科技部首推的国产地理信息系统软件,对ＭＡＰＧＩＳ功能的了解十分重要本文对ＭＡＰＧＩＳ数字地图库,专业属性数据库的管理和ＧＰＳ数据转换等方面的应用作了初步介绍,以使广大地质科技人员认识到ＭＡＰＧＩＳ的国土资源大调查中的重要作用。 相似文献
7.
三维地理信息系统及其在地学中面临的挑战 总被引：6，自引：0，他引：6
在三维地理信息系统的发展现状分析的基础上,指出了３Ｄ－ＧＩＳ在地学应用中所遇到的困难和原因,并且从３Ｄ数据结构和ＧＩＳ数据及数据库管理系统方面入手,对解决办法及发展趋势进行了探讨。 相似文献
8.
GIS在区调工作中的应用前景 总被引：6，自引：1，他引：6
区域地质调查是一项综合性的基础地质工作，它几乎涉及到地质学领域的各个方面，其９０％以上的数据与空间位置有密切关系。因此，ＧＩＳ在区调工作中有着广泛的应用前景，针对区调工作的特点和需要，阐述了应用ＧＩＳ时必须解决的问题，包括硬件的配备，软件的选择，人才的培养和标准化。 相似文献
9.
基于GIS的金矿多源地学信息复合处理及应用 总被引：5，自引：0，他引：5
利用ＧＩＳ建立起与金矿有关的多源地学信息库，通过图象技术，将数据库中有关的遥感，物探，化探，地质信息有机地结合起来，从而更深入地了解金矿与这些地学信息的关系，以利金矿找矿，而且借助ＧＩＳ还可对金矿预测结果进行有效的显示。 相似文献
10.
RS和GIS技术集成及其应用 总被引：13，自引：3，他引：10
何庆成 《水文地质工程地质》2000,27(2):44-46
本文简要地介绍了ＲＳ（遥感图像处理系统）和ＧＩＳ（地理信息系统）技术及其集成的基本概念和方法。讨论了ＲＳ和ＧＩＳ技术及其集成的内在涵义、相互关系,认为ＲＳ是ＧＩＳ重要的外部信息源,是其数据更新的重要手段,尤其对于全球性的 地理动力学分析,更必须有ＲＳ所提供的覆盖全球的动态数据与ＧＩＳ的结合。反之,ＧＩＳ则可以提供ＲＳ所需要的一些辅助数据,以提高ＲＳ图像的信息量和分辨率,同时,ＧＩＳ可以将实地调查所 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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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
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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