电感耦合等离子体质谱(ICP-MS)技术在地学研究中的应用   总被引：30，自引：0，他引：30  

李冰  杨红霞 《地学前缘》2003,10(2):367-378

简单介绍ICP MS技术应用最新进展。着重对该技术在中国地学研究和多目标地质调查中的应用作一回顾 ,包括ICP MS技术简介和地质样品分析需求 ,稀土稀散等痕量、超痕量多元素分析 ,铂族元素分析 ,卤素等非金属元素分析 ,同位素比值分析等内容。着重对最近几年国内地质样品分析的一些新方法加以介绍。  相似文献   

地热资源探测方法研究进展   总被引：7，自引：5，他引：7  

周厚芳  刘闯  石昆法 《地球物理学进展》2003,18(4):656-661

地热资源将成为未来一种重要的生态型资源，具有巨大的市场潜力，地热资源的研究与利用历史比较悠久，其探测方法与技术也处于不断的革新过程中，本文总结了地热资源探测的方法与技术及其进展情况，并探讨了利用3S技术和计算机技术的融合在地热资源探测中的应用情况及发展前景。  相似文献   

美国国家气象中心定量降雨预报   总被引：2，自引：0，他引：2       下载免费PDF全文

林明智 《气象》1997,23(11):3-6

美国国家气象中心自１９６０年开始实施定量降雨预报及其检验方案直至１９９３年３３年间，定量降雨预报从广泛依靠预报员经验的人工方法转变到更多依靠对数值模式的解释和修正３的方法，这是预报技术的一大进步。  相似文献   

痕量铁和锰的化学发光检测   总被引：5，自引：1，他引：5  

周延秀  朱果逸 《岩矿测试》1997,16(3):221-228

评述了国内外有关铁、锰的化学发光分析进展。从发光体系、操作方式、最佳条件、干扰离子、检测限等各个方面对化学发光法测定铁、锰及其它们与其它组分同时测定中的应用进行分类评述。  相似文献   

人工神经网络与分析测试技术的研究与发展   总被引：8，自引：0，他引：8  

罗立强  马光祖 《岩矿测试》1997,16(4):267-276

回顾了人工神经网络研究的发展历程，简要介绍了神经网络模型与算法，对分析测试技术和相关学科中的人工神经网络研究及在流程控制、错误诊断、参数估计、传感器模型、模式识别与分类、环境监测与治理及光谱与化学分析中的应用等作了评述。引用参考文献１１３篇。  相似文献   

铋的原子吸收光谱分析进展   总被引：4，自引：0，他引：4  

米瑞华 《岩矿测试》1997,16(4):277-283

文章对１９８５年以来用原子吸收光谱法测定Ｂｉ的情况进行了综述，着重介绍了用氢化物发生法、石墨炉法和火焰法测Ｂｉ时，为了提高灵敏度所采用的各种氢化物发生装置及根据不同试样所使用的各种分离富集手段。主要参考文献１０１篇。  相似文献   

气相色谱和薄层色谱法在形态分析中的应用   总被引：2，自引：0，他引：2  

方国桢  方梅 《岩矿测试》1996,15(4):299-310

评述了气相色谱和薄层色谱法用于氯、溴、碘、硫、硒、碲、铬、氮、磷、砷、钒、碳、锡、铅、铁和汞１６种元素的不同形态分析的进展。这些形态包括不同价态、有机态、无机态、阳离子和阴离子态等。由于气相色谱和薄层色谱法都具有分离和检测两种功能结合的特点，因此它们是用于元素形态分析的有效和方便的方法。引用１９８０～１９９４年文献９２篇  相似文献   

A decade of council tax inequities? Geographical perspectives and a research agenda     

Seraphim Alvanides 《Area》2004,36(1):41-49

Local taxation reform is back on the agenda in the light of the recent Local Government Bill. In reviewing the literature on the council tax, it is noted that researchers tend to view this from one of two perspectives: either as a fiscal policy, focusing on the tax burden, or as a housing policy, focusing on the property price valuations. Recent debate on council tax reform has gone as far as suggesting that there are regional inequities in the council tax, but what tends to be neglected remains the council tax incidence at the local scale. A research agenda is proposed here as a means of promoting geographically conscious inter-disciplinary research on local taxation.  相似文献   

GGR Critical Review of Analytical Developments in 2003     

Janet M. Hergt  L. Paul Bédard  Etienne Deloule  Kathryn L. Linge  Paul J. Sylvester  Michael Wiedenbeck  Jon D. Woodhead 《Geostandards and Geoanalytical Research》2005,29(1):5-52

The articles that comprise this critical review serve to draw attention to research papers published in specific fields of interest during 2003, provide critical comment on the relevance and importance of individual publications in these fields, and offer an overview of the comparative importance of advances in particular areas. In this way, these articles aim to assist experts in the field by keeping them informed of relevant recent publications, as well as providing an important resource for students or early career researchers who are embarking on studies in an area new to them. This year, five papers provide summaries of developments in bulk sample determinations employing (1) ICP-AES and ICP-MS (trace elements), (2) XRF and atomic absorption spectrometry and INAA, (3) isotope ratio measurements (TIMS, MC-ICP-MS, ICP-MS, ToF), as well as in situ measurements conducted using (4) secondary ion mass spectrometry and (5) laser ablation ICP-MS (trace element and isotope ratio determinations).  相似文献   

Significance of post‐peak metamorphic reaction microstructures in the ultrahigh temperature Eastern Ghats Province,India          下载免费PDF全文

David E. Kelsey  Laura J. Morrissey  Martin Hand  Chris Clark  Renee Tamblyn  Adrian A. Gaehl  Sarah Marshall 《Journal of Metamorphic Geology》2017,35(9):1081-1109

Ultrahigh temperature (UHT) granulites in the Eastern Ghats Province (EGP) have a complex P–T–t history. We review the P–T histories of UHT metamorphism in the EGP and use that as a framework for investigating the P–T–t history of Mg–Al‐rich granulites from Anakapalle, with the express purpose of trying to reconcile the down‐pressure‐dominated P–T path with other UHT localities in the EGP. Mafic granulite that is host to Mg–Al‐rich metasedimentary granulites at Anakapalle has a protolith age of c. 1,580 Ma. Mg–Al‐rich metasedimentary granulites within the mafic granulite at Anakapalle were metamorphosed at UHT conditions during tectonism at 960–875 Ma, meaning that the UHT metamorphism was not the result of contact metamorphism from emplacement of the host mafic rock. Reworking occurred during the Pan‐African (c. 600–500 Ma) event, and is interpreted to have produced hydrous assemblages that overprint the post‐peak high‐T retrograde assemblages. In contrast to rocks elsewhere in the EGP that developed post‐peak cordierite, the metasedimentary granulites at Anakapalle developed post‐peak, generation ‘2’ reaction products that are cordierite‐absent and nominally anhydrous. Therefore, rocks at Anakapalle offer the unique opportunity to quantify the pressure drop that occurred during so‐called M2 that affected the EGP. We argue that M2 is either a continuation of M1 and that the overall P–T path shape is a complex counter‐clockwise loop, or that M1 is an up‐temperature counter‐clockwise deviation superimposed on the M2 path. Therefore, rather than the rocks at Anakapalle having a metamorphic history that is apparently anomalous from the rest of the EGP, we interpret that other previously studied localities in the EGP record a different part of the same P–T path history as Anakapalle, but do not preserve a significant record of pressure decrease. This is due either to the inability of refractory rocks to extensively react to produce a rich mineralogical record of pressure decrease, or because the earlier high‐P part of the rocks history was erased by the M1 loop. Irrespective of the specific scenario, models for the tectonic evolution of the EGP must take the substantial pressure decrease during M2 into account, as it is probable the P–T record at Anakapalle is a reflection of tectonics affecting the entire province.  相似文献