苏联铀原料资源     

Lave.  NP 李友良 《国外铀金地质》1991,(4):1-10

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数字综合的几何特性     

McMa.  RB 晋文红 《测绘译丛》1989,(3):33-42

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用泰国湾北大年盆地沙敦油田的岩心资料和岩石图象分析来确定控制渗…     

Bowe.  MC 蔡群昌 《海洋地质译丛》1994,(5):54-62

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矿床地球化学模型的建立及其找矿效果探讨—以团结沟金矿为例     

魏仪方  何高文 《长春地质学院学报》1992,23(4):393-399

当今矿床学研究中的热点问题之一是矿床模型研究。矿床建模的理论与方法，矿床模型的定量化是目前矿床模型研究中亟待解决和完善的问题。从典型矿床入手，首先建立易于实现定理化的矿床地球化学模型，将有助于打破矿床模型研究的僵局。团结沟金矿床地球化学模型的建立是一个初步尝试。矿床地球化学模型能迅速转化为找矿模型，为找矿预测提供简捷有效的途径。  相似文献   

遥感技术在构造地质研究及成矿预测中的应用     

杨武年  朱章森 《物探化探计算技术》1994,16(3):265-266

遥感技术在构造地质研究及成矿预测中的应用杨武年，朱章森（成都理工学院）本文应用现代化遥感技术，根据遥感多波段图像信息量大、对地质构造形迹显示的宏观性、信息连续性以及对隐伏构造具“透视”作用的特点，并据遥感横张大节理和剪切节理与宏观褶皱及断裂具有成因联...  相似文献   

用“MISO”法进行井水位观测资料中的气压改正问题     

符永好  李辉 《地壳形变与地震》1991,11(3):7-14

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The Statistical Analysis of Migration of Strong Earthquakes-Taking the North China Region asan Example     

QinChengzhi ZhouChenghu PeiTao LiQuanlin 《中国地震研究》2004,18(2):178-187

The migration of strong earthquakes is an important research topic because the migration phenomena reflect partly the seismic mechanism and involve the prediction of tendency of seismic activity. Research on migration of strong earthquakes has mostly focused on finding the phenomena. Some attempts on getting regularity were comparatively subjective. This paper suggests that there should be indices of migration in earthquake dataset and the indexes should have statistical meaning if there is regularity in the migration of strong earthquakes. In this study, three derivative attributes of migration, i.e., migration orientation, migration distance and migration time interval, were statistically analyzed. Results in the North China region show that the migration of strong earthquakes has statistical meaning. There is a dominant migration orientation (W by S to E by N), a dominant distance ( ≤ 100kin and on the confines of 300 ～ 700km), and a dominant time interval ( ≤ la and on the confines of 3 - 4a). The results also show that the migration will differ slightly with different magnitude range or earthquake activity phase.  相似文献   

上海金饰品价格近日上调 专家预测未来金价有望继续走高     

《国土资源》2004,(12):57

近日，本市金饰企业再度上调金饰品价格，足金饰品零售基准价从原来的143元／克上调为145元／克，各企业在此基础上还可以上下浮动3％，也即最高可达149元／克；铂金饰品基准价也上调2～4元／克。  相似文献   

利用高光谱数据进行植被生化成分反演方法研究   总被引：3，自引：0，他引：3  

张凤丽  万余庆 《地球信息科学学报》2001,3(4):71-75

高光谱数据包含着丰富光谱信息,能够定量地分析物质成分^[1]。由高光谱数据,可以运用多元逐步线性回归方法反演植被生化组分含量,从而达到监测植被生长状况的目的^[2]。本文具体介绍了多元逐步线性回归方法,及其在氮、木质素和纤维素含量估算中的应用。  相似文献   

MONITORING THE DIFFUSION OF SUSPENDED SEDIMENTS AND STABILITY OF TIDAL RADIAL SAND RIDGES AREA USING MULTI-SATELLITE REMOTE SENSING DATA     

黄海军  何宜军 《中国海洋湖沼学报》2001,19(4):361-367

Nine Landsat TM tapes and images and MSS images, 10 NOAA tapes and images and 1 SAR image from 1973 to 1997 were used to analyse the diffusion of suspended sediments and the change of tidal radial sand ridges in the northern part of the Changjiang River delta, the South Yellow Sea. The results showed that the diffusion of suspended sediments was controlled by the tide, net current, and submarine topography in this area. The distribution of suspended sediments had close relationship with thesubmarine topography. The old Huanghe River delta and the Changjiang River comprise the main sediment supply for the formation of radial sand ridges, whose evolution can be divided into three stages since the Huangbe River changed its course and flowed northward into the Bohai Sea.  相似文献