共查询到20条相似文献，搜索用时 46 毫秒
1.
长白山火山热红外卫星遥感监测原理与框架设计 总被引：1，自引：0，他引：1
遥感技术的迅猛发展为火山监测提供了无法替代的技术手段，探讨火山区热红外遥感监测机理对提高地热异常的监测精度将起到积极的作用。在对地热异常有关因素如：热辐射、热传导、对流交换等进行深入分析的同时，也指出了各种不同类型的噪声干扰着地热异常信息的正常传输，并提出了合理解决问题的方法。 相似文献
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本文通过对热源问题的探讨，结合天津地区地质构造特点、热储条件及地热异常特征，提出了建立天津地热田地质模型的初步意见。 相似文献
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西安地区活动构造与地热异常分布关系及地热开发利用 总被引：1，自引：0，他引：1
本文对断裂构造在西安地区的展布、性质及其现今活动性与构造应力场等与地热异常的分布关系进行了初步探讨。认为断裂构造对地热异常的分布控制明显.在有热源存在时,断裂的现今活动性与地热异常成正相关。北东向及近东西向断裂为本区主要导热断裂,北西向断裂次之。并对地热资源的开发利用提出了建议。 相似文献
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邢台市东部平原地热开发远景初探 总被引：1，自引：0，他引：1
在简述邢台市东部平原地质构造、地层、地热地质模型、地质变异常区分布特征基础上,对邢台市东部平原地热开发远景进行了分析探讨,并提出了在邢台市东部平原进行地热资源开发的合理化建议。指出地热异常区内的远景开发区应优先开发;准地热异常区的地热资源开发应引起足够重视;在不具备完整地热地质模型的地热异常区内也有地热资源存在的可能。 相似文献
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论述了河南秦岭－大别洋壳活动带、华北板块边缘带、山西裂谷带和汤阴裂谷带4个地热异常区地热异常分布规律,划分出三种热储类型（褶皱山区断裂构造型、中生代沉积盆地型、过渡型）,并提出开发利用建议。 相似文献
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夏国礼 《河北地质矿产信息》2003,(4):27-31
根据实际资料分析认为，河北平原地热区的形成主要与地幔上隆这个大区域的深部构造背景有关。由于地幔的强烈上隆使河北平原地壳不断减薄裂解，形成了地表拗陷、地幔顶面却相对上凸的镜像对称关系，从而大大缩短并减小了从地幔到地表的热传导距离和热损耗，致使河北平原沉降区内的地热异常比较发育，地热梯度及地温亦明显高于周围山区。随着地幔上隆的加剧，导致了大规模的火山喷发活动，形成了广泛分布于河北平原一渤海地区的新生代(隐伏)玄武岩及众多的火山通道构造，井与区内许多典型地热异常区的位置相吻合。反映出区内地热异常与新生代火山活动可能存在着某种必然的联系。尤其是区内与深部地幔相连通的火山通道构造可能是形成区内众多地热异常最直接的原因。 相似文献
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地幔热柱演化及其地热效应——华北地热异常的深部构造背景 总被引：1，自引：0，他引：1
本文在概略分析了华北盆地地热异常特征、地热异常展布规律及成热控制因素的基础上,提出华北巨大地幔亚热柱的上隆是华北地壳裂解、断陷形成与发展、以及华北地热场形成与演化的主要动力(热能)来源,并进而指出了华北断陷中二级隆坳导致的地热梯度分带是构造控热的表现形式。 相似文献
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为合理规划、开发利用三明大田地热资源，通过1∶1万地热专项调查、测温、地球化学调查、水样化验分析、物探、钻探、抽水试验，以及水位、水温长期观测等工作手段，圈定了下汤泉地热异常区的范围、热储规模、热储温度，阐述了地热水的补、径、排条件及储存状态，初步查明了该区地下热水资源分布状况，水文地质条件、地热地质条件及开发利用现状，预测了地热异常区的地热资源量、允许开采量。 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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Muriel Rocher Stéphane Baize Stéphane Jaillet Edward Marc Cushing Yannick Lozac&#x;h Francis Lemeille 《Comptes Rendus Geoscience》2003,335(8):701-708
Calcite samples were extracted both from the rock matrix and the superficial coating of a karstified fault plane of an underground quarry, located in the eastern border of the Paris basin. The karstification is dated as Quaternary. Analysis of mechanical calcite twinning reveals that only the calcite matrix has also undergone a compression trending WNW that can be attributed to the Mio-Pliocene alpine collision. Both coating and matrix have undergone a strike-slip regime with σ1 roughly trending north–south, that could correspond to the regional present-day state of stress, a strike-slip compression rather trending NNW, modified by local phenomena. To cite this article: M. Rocher et al., C. R. Geoscience 335 (2003). 相似文献
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正20141520 Bo Ying(Key Laboratory of Metallogeny and Mineral Assessment,MLR,Beijing 100037,China);Liu Chenglin Saline Spring Hydrochemical Characteristics and Indicators for Potassium Exploration in Southwestern and Northern Tarim Basin,Xinjiang(Acta Geoscientica Sinica,ISSN1006-3021,CN11-3474/P,34(5),2013,p.594-602,5 illus.,3 tables,28 refs.) 相似文献
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正20141243Chen Ge(Hangzhou Research Institute of Petroleum Geology,PetroChina,Hangzhou 310023,China);Si Chunsong Study on Sedimentary Numerical Simulation Method of Fan Delta Sand Body(Journal of Geology, 相似文献
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正20142599Chen Sanming(Guangxi Key Laboratory of Concealed Deposits Exploration,Guilin University of Technology,Guilin541004,China);He Yuzhou Block Model and Reserves Estimation of Panzhihua Iron Deposit Based on 3D Geological Modeling(Journal of Guilin University of Technology,ISSN1674-9057,CN45-1375/N,33(4),2013,p.610-615,9illus.,1table,15refs.) 相似文献
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正20140594 Bai Daoyuan(Hunan Institute of Geology Survey,Changsha 410016,China);Zhong Xiang Faults in the Jingzhou Basin and Their Tectonic Settings(Geotectonica et Metallogenia,ISSN1001-1552,CN44-1595/P,37(2),2013,p.173-183,6illus.,59refs.)Key words:basin evolution,tectonic setting,South China In the Upper Paleozoic and Jurassic se- 相似文献
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正20141912Cao Hui(State Key Laboratory for Continental Tectonics and Dynamics,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China)Gravitational Collapse and Folding during Orogenesis:A Comparative Study of FIA Trends and Fold Axial Plane Traces(Geology in China,ISSN1000-3657,CN11-1167/P,40(6),2013,p.1818-1828,9illus.,35refs.,with 相似文献