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1.
向晓丽  张玺 《矿物岩石》1999,19(3):65-68
指示克立格是一种非参数统计方法,它能在不舍弃特异值的条件下进行有效的空间估计,协同克立格以协同区域化变量的研究对象,充分考虑了变量空间相关性和变量间的统计相关性,有着单变量克立格法可可比拟的优点,因而,本文提出协同-指示克立格法这一方法,在指示克立格中考虑多变量的空间相关性和变量间的统计相关性,使指示克拉立格与协同克立格相互补充,模拟现实,提高预测精度,并以胜利油田罗家砂四上砾岩为例进行参数预测,  相似文献   

2.
纯时间域多元信息地质统计学   总被引:5,自引:0,他引:5  
随着人们动态地认识客观世界的要求日益增加,时空域中的多元信息地质统计学技术研究受到重视。本文在时间域内对几种纯时间域克立格技术进行了研究,重点对纯时间域中的普通克立格(TOK)、简单克立格(TSK)及泛克立格(TUK)进行了论述,也对纯时间域中的协同克立格(TCOK)和指示克立格(TIK)作了简要的概括。  相似文献   

3.
时空域中的指示克立格理论研究   总被引:11,自引:0,他引:11  
对时空域内的指示克立格进行了较全面的研究,主要研究内容有:(1) 时空域内的指示克立格(STIK) 变换;(2) 指示二阶距;(3)单元指示克立格(STIK):①简单指示克立格(STSIK) ,②普通指示克立格(STOIK) ,③中值指示克立格(STMIK);(4)多元指示克立格:①指示协同克立格(STCOIK),②主分量指示克立格(STPCIK)  相似文献   

4.
时空多元协同克立格的理论研究   总被引:11,自引:0,他引:11  
本文结合地质统计学的最新成果,在空间协同区域化理论的基础上,对时空域中多元信息的协同克立格(STCOK)理论进行了较为详细的研究。主要研究内容有:(1)STCOK中的互变异函数与互协方差函数;(2)STCOK方程组及求解估值权因子的三种方法:①传统普通协同克立格法(STTOCOK),②标准普通协同克立格法(STSOCOK),③简单协同克立格法(STSCOK);(3)排列协同克立格(STCOLCOK);(4)指示协同克立格(STIKCOK)。  相似文献   

5.
协同克立格法,同时兼具化探数据多元性及克立格法表征空间属性的特点。考虑到地质变量两个以上的空间属性,在化探数据处理中运用协同克立格法,可以进一步提高估计精度。运用协同克立格法对广西林旺矿区中金元素成矿进行预测,经相关性分析显示,在矿区中元素的基本组合是Au、Ag、As、Hg,协同克立格插值以Au为主要变量,伴生元素Ag、As、Hg为次要变量。把插值计算后的结果与传统多元统计方法和普通克立格法的计算结果进行比较,结果协同克立格法得到的估值误差较小,预测精度较高,在成矿元素的预测中具有一定程度的优越性。  相似文献   

6.
余先川  王桂安  杨萌  刘敏 《矿床地质》2006,25(Z3):499-502
非线性空间信息统计学主要包括对数正态克立格、指示克立格、析取克立格、条件期望等理论方法。通过源代码和运行结果对各种克立格方法在数据特点、时间复杂度等方面进行了比较。DK估计较普通克立格更有效。首先,DK考虑到了Z(x)的二维概率分布,充分应用有效信息,克服了线性克立格的前提条件太少,导致数值离散性大时,估计不够准确的缺点;其次,DK利用区域化变量的非线性组合估计,所以可以方便地得到变量的任意函数的估计结果,在局部可回采储量等方面比线性方法更容易、结果更准确。  相似文献   

7.
随着信息社会的发展,克立格法已被广泛应用于矿产储量计算,物探、化探、遥感地质数据处理,环境科学、水文地质、农林科学和农田水利等诸多方面.文章综合分析克立格各种计算方法,对克立格复杂计算过程进行模块分解,基于Windows编写了克立格算法流程图并在Visual C 6.0平台上实现可视化编程,并对二维普通克立格算法的优化进行了有益的探索.  相似文献   

8.
肖斌  潘懋  赵鹏大  侯景儒 《地质论评》2000,46(Z1):129-133
根据收集到的归来庄金矿床的化探资料,选取与Au相关系数较大的W、As、Sb等区域化探元素作为变量,对该区金异常空间分布进行协同克立格法研究.在对4个区域化变量进行空间结构分析的基础上,建立空间结构模型并进行估计.综合化探金异常的协同克立格法研究结果表明,该区有多处金异常存在,具有较好的找矿前景.  相似文献   

9.
农田土壤水分和盐分空间分布的指示克立格分析评价   总被引:20,自引:1,他引:20       下载免费PDF全文
运用非参数地质统计学的多元指示克立格法,结合单元指示克立格法,对黄河河套灌区55hm2的盐渍化土地上两个比较关键时期的土壤水分和盐分进行空间分布的分析,给出了同一时期土壤水盐和不同时期土壤盐分满足一定标准的综合概率图,并借助该案例详细介绍了多元指示克立格的原理、步骤及应用范围。指示克立格方法为不同尺度(从农田到区域)上水土资源质量的评价提供了新的方法,能为水土资源的现代决策管理提供指导。  相似文献   

10.
   因子克立格分析是研究多元地质统计学的基拙,是由因子克立格法和协区域化分析两部分组成,方法上包括了区域化变量(集)的分解和分解后每一空间分童的估值;本文阐述了因子克立格分析从产生到应用的理论发展、研究成果及应用展望。  相似文献   

11.
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.
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.
Robert L. Linnen   《Lithos》2005,80(1-4):267-280
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.
Some olistolites reworked in a Tertiary flysch of Mount Parnon (Peloponnesus, Greece) exhibit a Late Permian assemblage, dominated by Paradunbarula (Shindella) shindensis, Hemigordiopsis cf. luquensis and Colaniella aff. minima. This association corresponds to the Late Wuchiapingian (=Late Dzhulfian), a substage whose algae and foraminifera are generally little known. Contemporaneous limestones crop out in the middle part of the Episkopi Formation in Hydra, but they are rather commonly reworked in Mesozoic and Cainozoic sequences. The palaeobiogeographical affinities shared by the foraminiferal markers of Greece, southeastern Pamir, and southern China, are very strong (up to the specific level), and are congruent with the Pangea B reconstructions. To cite this article: E. Skourtsos et al., C. R. Geoscience 334 (2002) 925–931.  相似文献   

15.
PALEONTOLOGY     
正20141596 Liu Yunhuan(School of Earth Sciences and Resources,Chang’an University,Xi’an 710054,China);Shao Tiequan Early Cambrian Quadrapyrgites Fossils of Xixiang Boita in Southern Shaanxi Province(Journal of Earth Sciences and Environment,ISSN1672-6561,CN61-1423/P,35(3),2013,p.39-43,3 illus.,20 refs.)  相似文献   

16.
正20141719 Chen Zhijun(State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China);Chen Jianguo Automated Batch Mapping Solution for Serial Maps:A Case Study of Exploration Geochemistry Maps(Journal of Geology,ISSN1674-3636,CN32-1796/P,37(3),2013,p.456-464,2 illus.,2 tables,10 refs.)  相似文献   

17.
正20140962 Chen Fenning(Xi’an Institute of Geology and Mineral Resources,Xi’an710054,China);Chen Ruiming Late Miocene-Early Pleistocene Ostracoda Fauna of Gyirong Basin,Southern Tibet(Acta Geologica Sinica,ISSN0001-5717,CN11-1951/P,87(6),2013,p.872-886,6illus.,56refs.)  相似文献   

18.
PETROLOGY     
正1.IGNEOUS PETROLOGY20142008Cai Jinhui(Wuhan Center,China Geological Survey,Wuhan 430205,China);Liu Wei Zircon U-Pb Geochronology and Mineralization Significance of Granodiorites from Fuzichong Pb-Zn Deposit,Guangxi,South China(Geology and Mineral Resources of South China,ISSN1007-3701,CN42-1417/P,29(4),2013,p.271-281,7illus.,  相似文献   

19.
正20141205Cheng Weiming(State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China);Xia Yao Regional Hazard Assessment of Disaster Environment for Debris Flows:Taking Jundu Mountain,Beijing as an  相似文献   

20.
正20141266Fan Chaoyan(Guangdong Provincial Key Laboratory of Mineral Resources and Geological Processes,Guangzhou 510275,China);Wang Zhenghai On Error Analysis and Correction Method of Measured Strata Section with Wire Projection Method(Journal of  相似文献   

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