共查询到20条相似文献，搜索用时 431 毫秒
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马庄山矿区构造地球化学测量研究 总被引：1，自引：1，他引：1
新疆哈密马庄山金矿与构造关系密切，并严格受构造控制。根据马庄山矿区构造地球化学测量的研究，归纳出了构造地球化学测量的基本理论和方法，指出开展构造地球化学测量找矿的路径。概略研究了构造地球化学异常与构造和矿体的关系 相似文献
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变质核杂岩和伸展构造研究述评 总被引：20，自引：0，他引：20
伸展构造及其主要类型变质核杂岩是当前构造研究中的重要课题。本文根据国内外的研究现状和存在的争议，分析探讨了进一步研究的主要和研究趋势。笔者提出了变质核杂岩的４个基本特征。指出研究中首先要查明其基本特征，进而探讨其运动学过程和动力学机制。要将变质核杂岩的宏徽观构造的研究与区域伸展背景的研究相结合；表壳构造研究与内壳构造和岩浆活动的研究相结合。笔者将伸展构造与挤压构造作了对比，划分了伸展构造类型，引术 相似文献
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豫西金矿为国内外地质界所瞩目，金矿田构造研究和理论，方法和手段达到了国内外先进水平。其研究的基本内容包括构造层控矿特征，控矿构造控矿构造体系和构造分带性、控矿构造发展阶段，成矿热液圈闭条件，矿液流向导矿构造的研究等。 相似文献
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深层断裂构造的遥感研究及其找矿意义 总被引：5，自引：1，他引：5
陈松岭 《大地构造与成矿学》1995,19(3):258-265
本文介绍了深层断裂构造在遥感图象上的影象特征，遥感解译原理和解译方法，以及地面调查验证方法。通过三个研究实例，进一步闸明了深层断裂构造的研究方法和研究意义，尤其是深层断裂构造与金属矿床的密切关系，指出了深层断裂构造研究在指导找矿工作中的重要地位。 相似文献
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新构造研究的几点回顾——纪念黄汲清先生诞辰100周年 总被引：1，自引：0，他引：1
值此纪念黄汲清先生诞辰100周年之际，笔者回顾了“新构造’’研究的早期历史和奥布鲁切夫(B．A.OσpyueB,1863-1956)对新构造研究的贡献，回顾了新构造研究历史中不同阶段的一些特点，介绍了天山内陆新造山带的新构造研究和欧美的“活动构造”研究在新构造的学科发展中的作用。展望了新构造研究当前发展的一些趋向。 相似文献
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江西金山金矿成矿深度研究 总被引：4，自引：0，他引：4
构造附加静水压力的研究是构造物理化学研究的重要内容。本文运用构造物理化学的基 本理论，研究了江西金山金矿赋矿韧性剪切带的构造附加静水压力，测算了金山金矿的成矿深度。 研究表明，金山金矿的成矿深度在 ３１００～４３００ｍ左右，这对进一步在该区的找矿勘查工作具有 指导意义。 相似文献
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本文从构造地球化学理论，不同尺度构造地球化学体系，构造地球化学动力学，构造地球化学实验和构造地球化学方法论几方面综述了构造地球化学的研究现状。 相似文献
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平桂地区遥感线性构造的分形特征及其地质意义 总被引：7，自引：1，他引：7
应用分形几何学的原理和方法对平桂地区遥感线性构造进行了定量研究。结果显示，在0.3125-2.5000km尺度内用箱形覆盖法求得的全区345个子区遥感线性构造的分维为0.8686-1.5909，回归直线的相关系数平方（R^2）在0.9729以上，表明在研究标度范围内，各子区遥感线性构造具有良好的统计自相似性和分形特征。在此基础上，分析并进一步探讨了线性构造分维的时空分布特征及其与矿床分布、深部构造的关系。研究表明，花岗岩区线性构造的平均分维最大，其次为地槽构造层、地台构造层和地洼构造层；且不同构造单元内的 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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Inter-regional correlation of transgressions and regressions in the Cretaceous period 总被引：1，自引：0，他引：1
T. Matsumoto 《Cretaceous Research》1980,1(4):359-373
Well investigated platforms have been selected in each continent, and the history of Cretaceous transgressions and regressions there is concisely reviewed from the available evidence. The factual records have been summarized into a diagram and the timing of the events correlated between distant as well as adjoining areas.On a global scale, major transgressions were stepwise enlarged in space and time from the Neocomian, via Aptian-Albian, to the Late Cretaceous, and the post-Cretaceous regression was very remarkable. Minor cycles of transgression-regression were not always synchronous between different areas. Some of them were, however, nearly synchronous between the areas facing the same ocean.Tectono-eustasy may have been the main cause of the phenomena of transgression-regression, but certain kinds of other tectonic movements which affected even the so-called stable platforms were also responsible for the phenomena. The combined effects of various causes may have been unusual in the Cretaceous, since it was a period of global tectonic activity. The slowing down of this activity followed by readjustments may have been the cause of the global regression at the end of the Cretaceous. 相似文献
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The Afyon stratovolcano exhibits lamprophyric rocks, emplaced as hydrovolcanic products, aphanitic lava flows and dyke intrusions, during the final stages of volcanic activity. Most of the Afyon volcanics belong to the silica-saturated alkaline suite, as potassic trachyandesites and trachytes, while the products of the latest activity are lamproitic lamprophyres (jumillite, orendite, verite, fitztroyite) and alkaline lamprophyres (campto-sannaite, sannaite, hyalo-monchiquite, analcime–monchiquite). Afyon lamprophyres exhibit LILE and Zr enrichments, related to mantle metasomatism. 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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正20140876 Gao Junbo(College of Resources and Environmental Engineering,Guizhou University,Guiyang 550025,China);Yang Ruidong Study on the Strontium Isotopic Composition of Large Devonian Barite Deposits from Zhenning,Guizhou Province(Geochimica, 相似文献
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正20141470 Chai Lu(Shenyang Institute of Geology and Mineral Resources,CGS,Shenyang110034,China);Zhu Qun Distribution of Significant Metal Mineral Resources the in Adjacent Areas of China,Russia and Mongolia(Geology and Resources,ISSN1671-1947,CN21-1458/P,22(5),2013,p.397-402,2 illus.,3 tables,20 refs.)Key words:metal ores,China,Russia,Mongolia 相似文献
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正20141944Bao Hanyong(Research Institute of Exploration and Development,Jianghan Oilfield,SINOPEC,Wuhan 430223,China);Guo Zhanfeng Tectonic-Thermal Evolution of the Subei Basin since the Late Cretaceous(Geological Journal of China Universities,ISSN1006-7493,CN32-1440/P,19(4), 相似文献
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正20140692 Duo Tianhui(No.402 Geological Team,Exploration of Geology and Mineral Resources of Sichuan Authority,Chengdu611730,China);Wang Yongli Computer Simulation of Neptunium Existing Forms in the Groundwater(Computing Techniques for Geophysical and Geochemical Exploration,ISSN1001-1749,CN51-1242/P,35(3), 相似文献
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正20142512Chen Xiaoan(Jiangxi Provincial Research Institute of Soil and Water Conservation,Nanchang 330029,China);Yang Jie Distribution Characteristics and Causes of Collapse Erosion(Journal of Mountain Research,ISSN1008-2786,CN51-1516/P,31(6),2013,p.716-722,2illus.,7tables,14refs.) 相似文献
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正20140644Cao Ying(Earthquake Administration of Yunnan Province,Kunming 650224,China);Wu Xiaoping Research on Structural Stress Field Basing on Focal Mechanism Solutions Data in Sichuan-Yunan Area(Journal of Seismological Research,ISSN1000-0666,CN53-1062/P,36(2),2013,p.165-172,6illus.,2tables,16refs.) 相似文献