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安徽铜陵矽卡岩型铜多金属矿是我国典型矽卡岩型铜多金属矿重要产地,铜陵具有的优越的成矿条件、丰富的资源储量及找矿前景;最早在东汉时期,这里便开始了铜的生产,并设有炼铜场。唐、宋、元、明、清历代至现在一直在开采,具备丰富历史和完整地质勘查资料和成熟采、选、冶理论技术,具备了建立科学基地研究的各项条件。通过对安徽铜陵典型矽卡岩型铜多金属矿科学基地各项综合因素分析,在矿产最丰富的长江中下游成矿带中建立安徽铜陵矽卡岩型—层控矽卡岩型—斑岩型铜多金属矿科学基地,为安徽甚至全国矽卡岩型铜多金属矿床研究树立了一个典范,成为具有科学研究、人才培养、专业教学、科普旅游及发展经济的综合性科研基地。 相似文献
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我国铜矿资源形势与可持续发展 总被引:1,自引:0,他引:1
世界铜矿资源丰富,我国相对较紧缺。从我国与世界主要铜矿床类型,规模进行了对比入手,研究国内外铜矿资源勘查开发利用形势,分析其间的差距。提出扩大寻找较佳铜矿床类型和产出的时空分布域,增加新的资源地;加快推广低成本应用广的湿法炼铜技术;扩大铜废料,废杂铜再生资源的开发利用; 相似文献
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我国铜矿资源形势与可持续发展的若干策略 总被引:1,自引:0,他引:1
从我国与世界主要铜矿床类型,规模进行对比入手,研究国内外铜矿资源勘查开发利用形势,分析其间的差距,提出扩大寻找较佳铜矿床类型和产出的时空分布域,增加新的资源地;加快推广低成本应用广的湿法炼铜技术;扩大铜废料,废杂铜再生资源的开发利用,使铜业开发走向全球一体化道路,使铜工业可持续发展稳定发展。 相似文献
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我国铜资源总量虽居世界前列,但以贫矿为主,品位大于1%的富铜矿仅为总保有储量的35%,其余大部分储量含铜品位均小于1%.现全国铜矿平均品位<1%,1992年我国铜矿山露采出矿品位0.57%,坑采出矿品位0.88%,选矿原矿品位0.63%.在未开 相似文献
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早在远古,云南就有锡铜合金(青铜)制造的工具(文物出土)。古代采金、采锡、采铜、采卤制盐的历史也很悠久。1287年,意大利旅行家马可波罗来云南,记述了大理地区的采砂金情况。1638—1640年,明代地理学家徐霞客描述了云南地貌、岩溶、水系、地热、火山等的情况。清朝末期,法国、英国的地质学者为殖民主义开辟云南作了铁路选线和矿产调查。辛亥革命后,我国地质学家丁文江首先来滇作地质调查。从此以后,国人对云南的地质矿产进行了持久的调查研究。1925年,朱庭枯到云南组建云南省实业厅地质调查所,同时创办地质测量讲习班。抗日战争爆发后,北京大学、清华大学、南开大学合并为西南联合大学,内迁昆明,地 相似文献
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《地质与勘探》1979,(5)
据联合国1977年5月和美国矿山局的资料,目前全世界已知铜储量估计为45100万吨,超过了到1990年的需求量.从计算的数字看,世界铜的消耗每年平均增加4.3%,至1990年达1690万吨.预计全世界所需精炼铜的增加数量,与铜金属工业的实际增长速度接近.这是一个总的趋势,但部分地要受某些因素的影响而有所变化,例如铜的其它代用材料的使用,以及发展中国家加大对铜的需要等.现有的铜矿山大概可以满足到1980年的市场要求,所以今后极需扩大生产能力.不过,目前采铜企业的地理分布状况不会有大的改变.发展中国家包括精铜在内的冶炼厂的数量,在1977~1980年间可望有显著的增加,总生产能力将提高62%与53%(后者为精炼铜).这个期间用于 相似文献
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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
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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
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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
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Emmanuel Skourtsos Daniel Vachard Alexandra Zambetakis-Lekkas Rossana Martini Louisette Zaninetti 《Comptes Rendus Geoscience》2002,334(12):925-931
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
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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
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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
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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
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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
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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
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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